Your Professional Structural Steel Supplier
Jiangsu Cunrui Metal Products Co., Ltd. was established on March 24, 2016. It is a modern enterprise specializing in the production and export of high-quality metal pipes.
Our company is a significant manufacturer of high-quality metal materials in China. Our product range includes stainless steel, carbon steel, alloy steel, silicon steel, etc., which are widely used in the medical, food, construction and other industries.
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S235JR Structural AngleS235JR angle iron is a common type of steel made to EN 10025-2 standards. It's a plain steel that comes in L shapes, with either equal or unequal sides. People like it because it's strong
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SS400 Structural Steel BarSS400 Structural Steel Bar is a widely used structural steel grade manufactured in accordance with JIS G3101 standards. It is known for its excellent weldability, reliable mechanical strength, and
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S355J2 Structural Steel BarDomestic S355J2 structural round steel, ideal for load-bearing components and low-temperature working environmentsWhen picking structural steel bars for engineering use, sufficient strength alone is
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A36 Structural Steel BarA36 Structural Steel Bar is a widely used carbon steel grade under ASTM A36 standard. It is valued for its excellent weldability, reliable mechanical strength, and cost-effectiveness. Jiangsu Cunrui
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A572 Gr.50 Structural Steel BarA572 Gr.50 Structural Steel Bar is a high-strength, low-alloy structural steel product manufactured in compliance with ASTM A572 standards. It offers an excellent balance of strength, toughness, and
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42CrMo4 Structural Steel BarThe 42CrMo4 Structural Steel Bar is a high-strength alloy steel rod widely used in engineering and industrial applications. Made from premium 42CrMo4 steel, it offers excellent mechanical
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Q235 Structural Steel PlateThe Q235 Structural Steel Plate is a widely used carbon structural steel under GB/T 700 standard. Known for its excellent weldability, toughness, and cost-effectiveness, it is a popular choice in
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A36 Structural Steel PlateA36 Structural Steel Plate for General Fabrication and Structural ProjectsWhen buyers choose A36 Structural Steel Plate, they are usually looking for a material that is readily available, easy to
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A572 Gr.50 Steel PlateA572 Gr.50 Steel Plate for Structural Fabrication and Heavy EquipmentWhen buyers choose A572 Gr.50 Steel Plate, the decision is usually based on one simple question: Can the material provide higher
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A572 Gr.42 Steel PlateChina A572 Gr.42 Steel Plate Supplier for Structural FabricationASTM A572 Grade 42 Steel Plate is a high-strength low-alloy (HSLA) structural steel designed for projects requiring better
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A588 Structural Steel PlateThe A588 Structural Steel Plate is a high-strength low-alloy steel plate manufactured according to ASTM A588 standards. Known for its excellent atmospheric corrosion resistance, this material is
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S355JR Steel PlateS355JR Steel Plate is a high-strength structural steel manufactured in accordance with EN 10025-2. Compared with S235JR, it provides a higher minimum yield strength while maintaining good weldability
Parameter
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Parameter |
Specification |
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Standard |
JIS G3101 |
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Grade |
SS400 |
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Product Form |
Structural Steel Bar / Structural Steel Rod |
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Sizes |
Diameter 6mm – 500mm; Length 3m – 12m (customized upon request) |
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Surface Treatment |
Black, Pickled, Polished, Oiled, Galvanized |
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Yield Strength |
≥ 245 MPa |
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Tensile Strength |
400 – 510 MPa |
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Elongation |
≥ 21% |
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Hardness |
HB ≤ 160 (depending on thickness and processing) |
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Certification |
Mill Test Certificate, EN10204 3.1 / 3.2, Third-Party SGS, BV, LR if required |
Customization Options
Custom Dimensions & Non-Standard Sizes
We provide tailored dimensions and non-standard sizes to meet your specific project requirements.
Comprehensive Processing Services
Our expert processing services include cutting, drilling, bending, welding, and machining to deliver precise, high-quality components.
Varied Surface Finishes
Choose from a range of surface finishes, including hot-dip galvanizing, coatings, polishing, and anti-rust oiling, to enhance performance and aesthetics.
OEM Services
We offer OEM services based on your detailed drawings or specific requirements, ensuring a perfect match for your needs.
Benefits of Structural Steel

Durability
Structural steel is highly durable and can withstand the harshest weather conditions, earthquakes, fires, and other natural disasters. With a high strength-to-weight ratio and excellent ductility, steel structures maintain their durability throughout the life of the structure even amid extreme conditions. Structural steel won’t crack, warp, or shrink over time, ensuring the structure remains stable and secure.
Strength
Structural steel is unbeatable when it comes to supporting heavy loads. It is ideal for large-scale construction projects like skyscrapers, bridges, and stadiums.
Flexibility
Easily molded into various sizes and shapes, structural steel is a remarkably malleable material. This flexibility allows architects and engineers to create complex designs and structures that would be difficult to achieve with concrete. Using structural steel also means future expansions and modifications to the structure are made easy.
Cost-Effectiveness
Structural steel is a cost-effective choice for construction projects because it is quick and easy to install, saving time and labor costs. Most domestic steel mills produce innovative, purpose-built high-strength structural steel. Using these efficient steel grades can help you save on foundation costs. Structural steel is also easier to use with modeling technology, cutting the total material cost of a steel package by up to 20%.
Sustainability
Steel can be recycled through various recycling processes. Approximately 95-99% of old steel can be recycled and reused in the production of new steel.
Speed of Construction
Steel structures can be erected quickly, minimizing site disruption and allowing projects to be completed on time and within budget. This speed is particularly important in areas with limited construction seasons or tight deadlines.

Application of Structural Steel
Large Buildings
Cityscape with many skyscapersSteel’s low weight and immense strength makes it ideal for use when building high-rise buildings. While high-rise buildings (heights between 75-491 feet) are generally made up of reinforced steel and concrete, skyscrapers (heights over 492 feet) are nearly always strictly composed of a steel frame.
Industrial Buildings
Industrial building exampleSteel is one of the most ideal materials to use when constructing industrial buildings. There are a few reasons for this, including cost, strength, durability, and more. The strength that steel provides is beneficial in more ways than just structural integrity. It’s durability means that less labor costs are required throughout the project, minimizing to potential impact of repairs. Also, steel is one of the strongest building materials available on the market.
Residential Buildings
Steel frame Residential house being built.During the construction of residential buildings built with steel, a process called light gauge steel is used to help maximize the structure’s level of strength. During light gauge steel construction, wood 2x4s are replaced with steel. This is similar to a traditional wooden framed building, but much more dependable and long-lasting. Essentially any residential building, be it an individual home or a multiunit property, can be enhanced through the usage of steel.
Parking Garages
Parking Garage with steel meshSteel is an ideal material when building structures such as parking garages for many of the same reasons that it is desirable for large building. Benefits include low construction cost, shortened construction time, and long-term durability, all very important qualities to have in parking garage construction. Also, the light weight and ease of construction that steel provides makes it an ideal material for constructing parking garages in a short period of time, and it is durable enough to withstand the weight of the many cars that will soon fill your space.
Delivery Information
Shipping Methods
We offer a variety of shipping options, including sea freight, air freight, railway transportation, and international express delivery, to meet the diverse needs of our customers.
Estimated Delivery Time
We will provide you with the estimated delivery time for your order, which will be clearly stated in the formal order to ensure your rights are protected, allowing you to arrange for the receipt of your goods in a timely manner.
Order Tracking
We provide order tracking services, allowing you to stay informed about the current status and expected arrival time of your order. Detailed inspection information and shipping manifests, including photos and videos, are provided to ensure the security of your transactions.
Certificate

FAQ
As one of the leading structural steel manufacturers in China, we warmly welcome you to buy cheap structural steel for sale here from our factory. All customized products are with high quality and competitive price. For pricelist and free sample, contact us now.