Blog

Today, environmental protection is one of the main goals of all activities and businesses aiming at sustainability, stability and community value. In addition to ways such as limiting the use of plastic and not littering, recycling steel is also one of the solutions that many people trust, especially in the construction industry. In this article, MRS Steel will analyze efforts to reduce the environmental impact of steel products throughout its life cycle of steel, from raw material exploitation to end-of-life stage.1. Recyclability of construction steelSteel is one of the most recycled materials in the world with 93% of all structural steel capable of being recycled into new products without losing its inherent properties, while only 8% of plastic is recycled. When using recycled steel, the production process can reduce electricity consumption by 80% compared to completely new production, while also reducing environmental impact and completely eliminating the exploitation of raw materials.During the life cycle of steel, materials are recycled and used in many large and small projects with the construction method of prefabricated steel frames. This is a construction solution chosen by many investors because of its outstanding advantages such as saving time, labor costs, shortening the disassembly and assembly process,...2. What is the life cycle of steel?By understanding the life cycle of steel, we can take advantage of its infinite reusability to create sustainable economic and environmental values.Collecting raw materialsFor recycled steel, you can find sources such as factories, shipyards, large construction projects, ships,... around the world. This process also includes classifying and separating scrap steel from mixed materials so that the recycling process takes place quickly, minimizing residue. Steel productionSteel factories focus on two common production processes: producing steel from iron ore in blast furnaces or from scrap in electric arc furnaces. With advanced technological improvements in production lines, CO2 emissions are reduced during the production phase.Recycling leftover productsDuring the steel production process, there will be surplus products that can be reused such as slag, iron scrap,..., which act as a substitute for some raw materials, used for the next production stages. This both reduces waste into the environment and saves significant costs and time for production processes throughout the life cycle of steel.Production of finished productsHigh-strength steel has superior properties compared to conventional steel structures because of its extremely good durability, impact resistance and corrosion resistance. Therefore, projects that require high bearing capacity such as factory frames, warehouse steel frames, cars,... often use high-strength steel to consume less material, optimize weight while still ensuring durability, safe in use.Steel recyclingFinally, steel returns to its life cycle as post-consumer scrap. At this point, it has already finished its first life cycle and is ready to be recycled to begin the life cycle of new steel.Steel is an industrial material that is recycled many times but still retains its properties, so there is no need to worry about reducing durability and safety when used for projects. Steel recycling not only contributes to reducing industrial waste in the world and protecting the environment, but is also a cost-effective solution for investors. Thus, steel scrap can be 100% recyclable and continues to exist forever throughout the life of the steel.3. Some examples of the life cycle of steelSteel is not only an environmentally friendly material but also an economical construction solution. The structures themselves can be constructed from many different types of recycled steel. Let's consider with MRS Steel which common applications best represent the life cycle of steel.AutomobileMost of the car's structure is made from steel, so after long-term use, even though the car loses its usability, it can still be recycled. Currently, automotive steel is the largest source of recycled steel in the United States. After processing, this material continues to be used in the automobile manufacturing industry with durability and an average lifespan of up to 15 years.Packaging and containersOne of the most common uses of steel that few people know about is packaging of goods. Food, wine, paint, crude oil, etc. are often preserved and transported in steel tanks to ensure product safety and quality when it reaches the user. Recycled steel is not only used to make containers, belts, etc., but can be manufactured into large containers and then recycled during the life of the steel to make other applications.Steel structureThe use of wood as a building material can deplete natural resources, cause environmental disasters and cannot be recycled or recovered. Wood structures also generate more industrial waste, so steel structures are becoming increasingly popular in housing construction. Not only do they bring modern, sophisticated, cost-effective aesthetic beauty, but steel buildings can be completely recycled after they stop being used.Infrastructure projectBesides housing, steel is also the main material for projects such as bridges, roads, railways, silos, tanks,... Thanks to its high strength, steel is used for frames or roofing, providing high durability and ability to bear large loads. These structures, after long periods of use, may become degraded or need to be removed. At this time, steel materials can be recycled and used as materials for completely new projects, starting a circular steel life cycle.

Purlins are one of the materials that help support the structural framework, most often below the roof. Purlins carry the roof desk load and are supported by building walls, steel beams, rafters,... Purlins are an indispensable part of every project, so choosing the perfect purlin ensures the safety of the entire building. In this article, MRS Steel will share some tips for choosing the most suitable purlins to make the roof frame for the project.1. Choose the appropriate purlin materialPurlins combine with rafters to create a roof frame, combining the support of beam frames, walls or steel beams. When choosing the material of the purlin, importer can consider between black pipe steel, galvanized steel or high-strength steel. Each material has pros and cons in terms of strength and cost, so importers need to assess the building design to choose the most optimal material. However, to ensure the safety of the project, steel purlins must be able to withstand high loads, resist corrosion, rust and be unaffected by environmental factors.2. Choose the ideal type of purlinThis is one of the important factors when deciding which type of purlin for your project. C and Z shaped purlins are the two most popular types, have high applicability and unique characteristics as follows:C purlins are made from black or galvanized steel with a C shape and used in structural framework for factories, houses,... Importers can contact MRS Steel for advice on the most suitable dimensions, thickness and length for their specific application.Z purlins are manufactured from hot-rolled, cold-rolled, galvanized steel, shaped like the letter Z, so it is easy to stack and connect through bolted joints. Because of this characteristic, the Z shaped purlin has a higher thickness and durability than the C shaped purlin.3. Install purlins properlyCalculating the distance to install purlins compared to the corrugated iron roof in a reasonable, economical and safe way is important in choosing purlins for the project.Firstly, safety and sustainability are the top criteria, requiring the distance between purlins and corrugated iron roofs to be standard and reasonable. Next, if the purlins are not aligned or installed too far or too close, roofing will cost a lot of time and money. Finally, if the purlin distance is not suitable, it also reduces the building's load-bearing capacity, especially making it difficult to repair and maintain periodically.4. No weld/heat cutWelding or heat cutting methods are not used when installing purlins because high temperatures can affect the durability and strength of the purlins.5. Choose a reputable supplier and manufacturerPurlins are a key part in construction projects, so factories always produce many specifications to meet all customer needs. Importers can also find cheap sources from China, India,... but for some countries with strict regulations on C/O or trade defense measures, this option is not feasible. Meanwhile, Vietnam belongs to the group of countries with a developing economy, so it enjoys many preferential duty rates and import policies to the EU, United States, Australia, Mexico, Malaysia,...Vietnam has crude steel output ranked 13th on the world steel map and the largest in Southeast Asia, ensuring abundant and high-quality supply for customers. Many of Vietnam's largest factories do not receive orders directly from importers but through intermediary support units such as MRS Steel.MRS Steel provides solutions for importing Vietnamese steel to more than 30 countries around the world, with a network of links with many reputable steel factories and shipping lines to promote the fastest and most optimal delivery process. Importers can contact us via Email: vanloc@mrssteel.com.vn or Hotline: +84 28 36 22 33 58 for more detailed advice on the Vietnamese steel market and products.

Steel melting is a complex process, many stages and requires many advanced technologies to create finished products of outstanding quality, meeting the stiff demands in construction. The process has 3 main steps: iron ore treatment, blast furnace molten iron smelting and impurity treatment to form billets and finished products. In this article, MRS Steel will describe in detail the steel melting process to help you better understand the nature of this metal.1. What is iron ore steel melting?The process of making steel from scrap steel is relatively simple because the raw material only needs to go through an electric arc furnace (EAF) or an induction furnace (IF) to smelt into square billets and roll out the final product. Meanwhile, steel made from iron ore has to go through a long process with many different complicated stages. Iron ores are rocks containing metallic minerals that are mined and processed to produce steel. Different types of iron ore contain different proportions of iron, divided into 3 basic types:Magnetite: The chemical formula of this ore is Fe3O4 containing 72.41% iron. In nature, the amount of magnetite iron ore is very rare because they possess the highest iron contentHematite: This is an iron ore with 70% iron content, after magnetite, the chemical formula is Fe2O3. In Greek, hematite ore means blood because of their characteristic red color, easily found in Asia, Australia, and Brazil.Pyrit: The chemical formula is FeS2 containing iron content up to 46.67% with metallic, golden copper color. It is the most common of the sulfide minerals.2. What is the process of making steel from iron ore?Step 1: Iron ore processingIron ore with the main components being iron oxides Fe2O3 and Fe3O4 in raw form, with different contents and sizes, processed, mixed according to the required ratio, combined with coke coal, lime and dolomite to put into the furnace to produce liquid cast iron. The product is an alloy of Fe and C with a Carbon content of more than 1.7%. Carbon is an important element affecting the hardness, ductility and toughness of steel. When %C is in the range of 0.8-1%, the steel has the best strength and hardness, but if the ratio exceeds 1%, they begin to decrease. Therefore, the manufacturer reduces C in cast iron and some other harmful impurities (Cu, Ni, Cr) to less than 0.03%. Liquid cast iron water, after being transferred to an oxygen furnace, helps to melt iron ore and reduce the level of impurities such as sulfur, phosphorus,...Step 2: Create a liquid of molten steelFrom the molten cast iron in stage 1, it will continue to be led to the basic furnace or electric arc furnace to treat impurities and combine some other metals such as manganese, chromium, nickel, aluminum, copper, ... to enhance the technical properties of the steel and create the grade required by the market.Step 3: Roll billet, finished steelWhen step 2 has been completed, the liquid metal is put into casting machine systems to form billets or finished construction steel products such as rebar, coil, hot rolled steel,....There are 3 main types of bar stock, slab and bloom, which are cast in two different states: hot casting and cold casting. For bar stock with cross section of 100x100, 125x125 and 150x150, length 6.9m or 12m  for use as coil and rebar. Slabs are often used to make hot rolled coils, cold rolled coils or V-C-U-H sections, while bloom can completely replace both bar stock and slabs.3. Vietnam's modern steelmaking technologyThanks to the closed steel melting process, advanced technology lines imported directly from G7 countries such as Tenova group, Danieli - the leading corporation in Europe and the world in metallurgical and steel rolling equipment, has turned ore into high quality products without impurities. Products after steel melting have impurities below 0.03%, lower than the standards of many fastidious import markets in the world.The process of smelting steel from ore removes many harmful impurities such as S, P, so the finished steel has strength and longer life expectancy. Steel made from iron ore possesses superior physical and mechanical properties and can be rolled into products with a higher diameter and grade of steel such as D55 construction steel, tensile strength reaching over 600N/m2, suitable for construction projects, bridges, ports, skyscrapers,…Steelmaking is a complex production process, requiring many modern technologies and lines to ensure product quality and not cause pollution to the environment. Vietnam is one of the countries with the leading steel melting capacity in the world. For any inquiry and request for quotation, please contact MRS Steel via Email: vanloc@mrssteel.com.vn for detailed advice.

Besides the usual steels, today manufacturers have continuously innovated and released many improved steel alloys to serve diversified industries. Chromoly steel is known as a steel alloy that is lighter in weight than any other steel, but it also ensures good durability and load capacity.What is Chromoly steel and its important specificationsChromoly steel is a low-alloy heat-resistant steel formed by a combination of "chromium" and "molybdenum", of which the chromium content is 10%. The role of alloying elements will make the product have superior features to ordinary carbon steels because it helps increase durability after undergoing heat treatment.The Chromoly steel grades are conventionally identified by the first two digits of 41, to indicate that this is the designation of chromium and molybdenum steels. An example of the most common type of Chromoly steel can be mentioned as AISI 4130 steel which is currently being used a lot in the oil and gas, aerospace,...CHEMICAL ANALYSISC%Carbon 0.28 – 0.33Mn%Manganese 0.40 – 0.60P%Phosphorus 0.035 maxS%Sulfur 0.040 maxSi%Silicon 0.20 – 0.35Cr%Chromium 0.80 – 1.10Mo%Molybdenum 0.15 – 0.25Some remarkable properties of chromoly steel Limitation in metal corrosionChromium is known as a metal with very high hardness, it also has amazing corrosion resistance. When chromium meets oxygen, it will form a compound Cr2O3, which is the strongest compound of chromium in anti-oxidation. So if Chromium is added to steel, it will create a more protective layer for the steel core, the more chromium content, the higher the steel's ability to resist rust.Outstanding hardnessSimilar to chromium material, when adding the molybdenum to the structure of steel, it will provide superior strength as it increases the hardness of steel and of course, the tensile strength of steel will be greatly improved. A chromium molybdenum steel plate can be designed to withstand a load force of up to 760 MPa.Thanks to this ideal hardness, Chromoly steel helps to maintain the stability of the structure, increase the load-carrying capacity, and minimize the product's warping or distortion when subjected to long-term loads.Good heat resistanceBeyond the feature of increasing hardness, chromoly steel also possesses good heat resistance properties because molybdenum compound allows the steel to survive well under temperatures up to 5800C. Molypden is a heat resistant substance in nature, when combined with chromium, this link will significantly reduce the damage of steel structures in high pressure environments.Long-term cost savingsChromoly steel will cost more than standard steel grades, but in terms of its useful applications in the long-term, this steel will provide the amount of cost-effectiveness for plan. If you are looking for a material that is stronger and lighter than steel but not as expensive as titanium, chromoly steel will be the best choice for you.List of common Chromoly steel's applications Basically, Chromoly steel has some similar features to standard carbon steel, but thanks to the addition of a chromium layer, the steel has enhanced strength and resistance to oxidation, the molybdenum content in the steel also increases toughness. Because of these superior features, the Chromoly steel line becomes useful and is being applied to many industries.Aerospace industryIn the past, steel and aluminum were the popular materials in the aviation industry, but in recent decades, chromium steels are gradually being applied and replacing traditional materials. Thanks to its thermomechanical properties, chromoly steel is often used to support jet engines and landing systems.Manufacture of vehicles and bicyclesDue to the versatile combination of durability properties as well as good load bearing, Chromoly steel is often used to make car chassis. Moreover, based on the advantages of anti-corrosion and high hardness, manufacturers often use them to make gears and automobile crankshafts.Chromoly steel is considered the best material for bicycles. Although Chromoly is known for its hardness beyond standard, it also possesses surprisingly good ductility. Thanks to this factor, manufacturers can freely shape and weld metal parts together to create trendy chassis models that still ensure good durability and bearing capacity.Chemical industriesMany studies have proved that Chromoly steel can suffer from extreme environmental temperature conditions up to 5800C for a long time. Therefore, this steel is widely used in high pressure industries such as oil filtration and chemicals.Depending on the numerous advantages that Chromoly steel brings, it is not difficult to imagine that Chromoly steel will become a standard material for many applications of the field in the future. Therefore, preparing a plan to add Chromoly steel as the main sources for your projects will be a perfect decision for future sustainable development.If you are in need of sourcing reputable Chromoly steel as well as learning more about price segments in the Vietnamese steel market, please contact MRS Steel via Whatsapp +84 76 911 2358 or email vanloc@mrssteel.com. 

Thanks to astute foreign policies and a favorable geographical location, Vietnam has reaped benefits in trade agreements. Among the prominently advantaged industries, the steel sector consistently ranks among the highest annual export volumes in the country. Therefore, importing steel from Vietnam not only provides cost advantages but also ensures product quality for importers.Geographical location creates favorable conditions for importing steel from VietnamIn terms of its maritime geographical location, Vietnam holds the advantage of being situated in the South Sea, which is considered a vital maritime route connecting the Pacific and Indian Oceans. Additionally, its strategic location amidst key markets such as China, Japan, South Korea, Singapore, India, and various other ASEAN countries positions Vietnam as a hub for maritime and trade activities. This not only opens up numerous opportunities for the import and export of various goods but also actively involves Vietnam in the global steel supply chain.Continuous investment in logisticsOver the years, the Vietnamese government has consistently invested in and upgraded seaports to facilitate import and export activities, aiming to reduce transportation times and alleviate bottlenecks in the flow of goods. As a result, the transportation duration of steel has significantly shortened, creating favorable conditions for steel brands originating from Vietnam to become more prevalent in various regions.Specifically, the average transportation time for goods to the Southeast Asia region has now been reduced to 5-10 days, and the shipping time from Vietnamese ports to Australia takes only 15-20 days. While Europe is considered a large market with a relatively distant geographical distance from Vietnam, significant improvements in logistics have reduced the average transportation time to just 30 days.In contrast, the geographical distance to the Americas is considerable, requiring a longer transit time, typically ranging from 45 to 60 days for steel products to reach their destination. Although geographical distance poses a challenge, in certain special cases, delivery time can become a crucial tool in pricing strategies, especially during periods of fluctuation in the domestic steel market. Specifically, during periods of high domestic steel prices, the decision for importing steel from Vietnam can bring significant benefits to importers in the Americas, providing them with a steel supply at a competitive price compared to competing counterparts and thereby reducing cost pressures.Importing steel from Vietnam brings tariff advantages via FTA agreementsAs of now, Vietnam has 19 FTA partners, including 15 active FTAs, such as the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP). This allows Vietnamese steel products to enjoy a 0% import tariff within the customs framework of the 11 participating countries. Moreover, Vietnam successfully signed the EU-Vietnam Free Trade Agreement (EVFTA). The EVFTA stands out from other trade agreements Vietnam has signed, granting nearly 100% tariff reductions for import and export transactions with 27 EU member countries.In addition to these agreements, Vietnam has established various trade agreements and comprehensive economic partnerships with countries and regions such as the Economic Cooperation Organization, the United Kingdom, South Korea, Japan, Chile,... These agreements not only provide tariff advantages for Vietnamese steel but also create opportunities for price competition, benefiting both sellers and buyers by ensuring reasonable product prices.Flexible strategy in response to anti-dumping investigationsThe steel industry is considered a key industrial sector for many countries and numerous markets have sought to protect domestic steel products through various protective measures such as tariff barriers and anti-dumping duties. Vietnam, as one of the fastest-growing steel markets globally, has attracted attention from other countries, leading to anti-dumping investigations. However, most anti-dumping cases related to Vietnamese steel products are currently in the form of investigations due to suspicions regarding the origin of raw materials originating from China.Through flexibility and timely adjustments in export strategies, Vietnam has maintained its status as an ideal destination for steel importers. Diversifying markets and adapting quickly to international trade regulations have helped minimize risks associated with dependency on a specific market and legal issues, providing favorable conditions for positioning Vietnamese steel on the international market.Large-capacity factories equipped with modern production linesThe Vietnamese steel market has witnessed the emergence of many large-capacity manufacturing plants with substantial investments in advanced technology from the world's leading Danieli-Tenova technology. These plants not only meet domestic demand but also have the capacity to export to international markets. Notable examples include Hoa Sen, Hoa Phat, Nam Kim, Ton Dong A, Tôn Phương Nam - SSSC, SMC, Vina One Steel,...Hoa Sen Group leads in coated steel in Vietnam with a pickling capacity of 1.9 million tons per year and a NOF line capacity of 2.2 million tons per year. On the other hand, Hoa Phat Group has consistently held the top position in steel pipe and construction steel for many years. Each year, the complex of factories supplies a production capacity of 2.5 million tons for steel billets and steel bars, achieving a production capacity of 1 million tons per year for steel pipes. Additionally, Hoa Phat's HRC products are considered future key products with a designed total capacity of 3 million tons per year.Thanks to advancements in the production process, domestic steel manufacturers meet all the conditions to produce high-quality steel brands that meet international requirements for size, weight, flexibility, and load-bearing capacity. Steel products before export meet all quality standard certifications, including JIS from Japan, ASTM from the United States, BN from the United Kingdom and AS from Australia. Most domestic steel manufacturing plants are certified to the latest ISO 9001:2015 quality standard, demonstrating not only a solid step forward in quality but also evidence of effective production and management capabilities.Importing steel from Vietnam through reputable suppliersThe remarkable transformation of the Vietnamese steel industry in recent years has attracted many international importers, contributing significant export value. MRS Steel is a prime example of a company actively participating in this process. With many years of experience in the steel industry, MRS Steel has established extensive relationships with major manufacturers such as Hoa Phat, Hoa Sen, Ton Dong A, SMC, ensuring a diverse supply of high-quality products meeting stringent standards for durability and coating thickness.MRS Steel is not a steel supplier but also provides solutions for importing steel from Vietnam, which actively support partners by advising on suitable steel products for projects and ensuring that manufacturing plants meet requirements, thereby helping customers optimize costs for their plans while receiving a source of quality products. Furthermore, MRS Steel operates with a commitment to transparency and clarity in the transaction process. The company's team consistently provides detailed information about contracts, certificates and prices, offering importers a comprehensive view of the buying and selling process.Collaborating with MRS Steel not only brings benefits in terms of product quality but also in transaction processes and information support. If you are interested in the Vietnamese steel market and need advice on the appropriate steel types for your project, feel free to contact us for free consultation via WhatsApp: +84 76 911 2358 or email vanloc@mrssteel.com.vn.

The barn is used for many purposes like protecting livestock, storing animal feed, agricultural products or machinery against the environmental elements. Currently, farm owners tend to use PPGI as a barn instead of wood or concrete because of many outstanding advantages.1. Characteristics of barns in agricultureIn the field of agriculture, warehouses are usually designed with 2 floors, the first floor is a shelter for animals or storage of production machinery and equipment. The 2nd floor area is used to store animal feed, agricultural products or other utensils.The barns are named according to the purpose of use, such as tobacco barn, dairy barn, farm barn, tractor barn. The most principal type in the United States is the multipurpose barn, used for housing horses, cows, calves, sheep or storing hay and grain.Wood is the main material in traditional barns, but since World War II, pre-painted galvanized is more increasingly used, especially in large farms because of the advantages of aesthetics, durability and costs.2. Building barn with PPGIWhen building a barn, the roof, door and insulation are essential components that are first considered. The materials that make up these parts of the warehouse will greatly affect the effectiveness of protecting livestock, agricultural products and machinery from the effects of the environment and weather.2.1. RoofThe roof is one of the most important components of the barn because of its role of creating shade, shading the sun and rain and keeping the interior temperature. Most roofs today are constructed from PPGI sheets. With a high-grade coating that does not peel, is durable over time, has the ability to block heat to help keep the interior space cool and temperature stable. Compared to shingles that need to be re-glued every 12-15 years or the wood is prone to rotting, pre-painted galvanized sheets have a long life expectancy, are extremely water and corrosion resistant.2.2. Barn doorThe barn door should be easy to open and to secure. When the weather is favorable, the doors can be fully opened to ventilate the interior space, enhancing the exchange of fresh air for the animals to breathe. The PPGI barn door is very light, easily slides on the rail, saving you time and effort when opening and closing the door.2.3. Thermal and soundproof partition wallsWood, concrete and brick are good insulators but have poor sound insulation. Animals such as horses, cows, sheep,... are very sensitive to sounds, easily panic and lose control in noisy environments. Therefore, ranchers are gradually turning to PPGI to make soundproof walls for different types of barns.3. Advantages of PPGI barn 3.1. Moisture ResistanceHumidity and severe weather can affect the structural integrity of the barn. Wood is porous, absorbent and prone to decay over time while galvanized steel is more resistant to water, rust and corrosion.3.2. Longer lifespanWith wooden barns easily damaged by insects and birds, causing termites or nesting on the rafters. Steel buildings can limit these problems as well as avoid degradation due to burrowing insects.3.3. Fire ResistanceThe surface of PPGI is covered with special fireproof layers to help steel frame buildings have high fire resistance, slow down the spread of fire. Types of barns in foreign countries need to pay insurance levels in case of fire and explosion. Therefore, although wooden warehouses are lower in cost, in the long run, steel buildings have better insurance costs which helps to optimize overall costs.3.4. Strength and durabilityPPGI sheets are durable, withstand heavy loads but are lighter than many other building materials. The barns made from steel are 30-50% lighter than wood. This helps the construction of steel frames and building details save more time and manpower than traditional materials.4. How to choose the right PPGI for the barnIf you are in the process of planning and looking for building materials suitable for your barn properties, please contact MRS Steel's team of experts for detailed advice.MRS Steel is a unit specializing in providing high quality Vietnamese steel import solutions in addition to consulting and analyzing the most suitable steel for each project. With more than 10 years of experience in sourcing domestic steel, MRS Steel has a wide network of connections with the largest brands in Vietnam such as Ton Dong A, Hoa Phat, Ton Hoa Sen, Nam Kim,... help you save time and effort buying. In addition, the experienced staff in the customs field of MRS Steel support customers with all customs procedures and processes, transporting goods quickly and safely.For any questions and request for a quote for PPGI/PPGL Vietnam, please contact MRS Steel via WhatsApp +84 76 911 2358.