SS400 Carbon Steel Coil
SXY Steel Group manufactures premium-grade JIS G3101 SS400 structural carbon steel coils, specifically engineered for exceptional weldability, reliable yield strengths, and predictable bending performance under heavy industrial structural loads. Our SS400 hot-rolled steel strips deliver the precise mechanical uniformity and plate-slitting stability required for heavy infrastructure fabrication, machinery chassis, and large-scale structural framing profiles.
Every precision hot-rolled batch undergoes strict tensile yield testing, ultrasonic structural flaw detection, and automated gauge cross-sectional analysis. Secure your prioritized container mill capacity today through our guaranteed 2-hour rapid technical quote service before regional structural steel price indices fluctuate.
Tired of slow email feedback while your project submittal or structural fabrication deadline closes in? Eliminate factory material non-compliance risks and lock in verified SS400 structural test logs right now.
PRODUCT DETAILS
Structural Carbon Steel Sheet & Coil Three-Standard Cross Matrix
| Japanese Standard (JIS) | American Standard (ASTM) | European Standard (EN) | Chinese Standard (GB) | Core Material Performance Profile |
|---|---|---|---|---|
| JIS G3101 SS400 | ASTM A36 / ASTM A570 Gr.40 | EN 10025-2 S235JR (1.0038) | GB/T 700 Q235B / Q235C | Structural Grade Base, Yield Strength ≥245 MPa, Tensile 400-510 MPa, Premium Welding Adaptability, Highly Stable for Flat-Bed Heavy Component Slitting |
| JIS G3106 SM400A | ASTM A572 Grade 42 | EN 10025-2 S235J0 | GB/T 1591 Q355B | Welded Structural Steel Grade, Optimized Carbon Equivalents, Enhanced Impact Energy Resistance for Marine Framing and Infrastructure Applications |
| JIS G3101 SS490 | ASTM A572 Grade 50 | EN 10025-2 S355JR (1.0045) | GB/T 1591 Q355D | High-Tensile Structural Quality, Superior Yield Performance (≥345 MPa), Reduced Structural Thickness Options for High-Load Mechanical Frames |
• Traceable EN 10204 3.1 Certification: All deliveries are accompanied by comprehensive mill analysis records tracking yield strength maps, ultimate tensile values, elongation ratios, and verified chemical compositions. Fully compatible with SGS, Intertek, or Bureau Veritas inspection schedules.
• Financial Safety Architecture: We shield cross-border enterprise capital by executing large-volume commercial industrial contracts under 100% Irrevocable Letters of Credit (L/C) at sight.
• Reinforced Steel Banding & Cradling: Heavy coils are set firmly on heavy metallic structural supports or hardwood skids, cross-bound using radial high-tensile steel straps to block structural inertia shifts during rough ocean rolling.
• Port Demurrage Protection Cushion: SXY Steel Group pre-allocates 14 to 21 days of complimentary container demurrage at destination seaports to ensure your local logistics agents have sufficient customs processing buffers.
International Comparison of Materials
| EU EN | Inter ISO | USA AISI | Japan JIS | Germany DIN | China GB | France AFNOR | England BS | Canada HG | European EN |
|---|---|---|---|---|---|---|---|---|---|
| S275JR | E275B | A283D A529 Gr.D | SS400 St44-2 | RSt42-2 | Q235 | E28-2 161-43A 161-43B | 161-430 | 260W 260WT | Fe430B |
| Italy UNI | Spain UNE | Sweden SS | Poland PN | Finland SFS | Austria ONORM | Russia GOST | Norway NS | Portugal NP | India IS |
|---|---|---|---|---|---|---|---|---|---|
| Fe430B | AE255B | 1411 1412 | St4V | Fe44B | St42F St430B | St4ps St4sp | NS12142 | FE430-B | IS2062 |
| Item | Specification |
|---|---|
| Commodity | SS400 Carbon Steel Coil |
| Standard | JIS G3101 |
| Mechanical Quality | Commercial / Drawing / Deep Drawing / Extra Deep Drawing / Structural quality |
| Surface Treatment | Chromated and oiled |
| Hardness | Softy, half hard, hard quality |
| Grade | SS400 |
| SS300, SS490, SS540 | |
| Thickness | 0.12-12.0mm |
| Width | 600-1500mm |
| Coil Weight | 3-34MT/Coil or as your request |
| MOQ | 5MT |
| Packaging | Export standard, seaworthy |
| ID | 508mm or 610mm |
| Trade Term | FOB, CFR, CIF, EXW ETC. |
| Transport Type | Container, bulk and train |
Packing and shipping
Our company has passed ISO9001 quality management system certification, Our Mill product with CE/EN10204 / ASTM/Classification society certificate/CASO/BIS etc certificate.All the customers give good appreciation to our products.We are glad to be your good partner.

Application Areas
Steel is widely used in steel structure workshops, bridge frames, main structures of high-rise buildings, and infrastructure construction (such as highways, oil and gas pipelines). Its high strength properties ensure load-bearing stability and seismic performance. In ship manufacturing, steel is used to build hull structures, decks, and internal components. Hot-rolled coils rely on their load-bearing capacity to adapt to harsh environments.

Factory workshop
With a commitment to excellence, innovation, and sustainability, the company has established itself as a trusted partner in the international steel industry.After nearly two decades of relentless endeavour, our client base now spans over 110 countries and regions across Europe, the Middle East, South America, and Southeast Asia.

Free Slitting Layout Optimization & Engineering Blueprint Component Nesting Evaluation
Submitting custom material dimensions for heavy structural steel slitting operations, welded structural components, equipment framework, or national distribution centers? Input your desired strip widths, maximum roll weights, coil diameter restrictions, or raw engineering Bill of Materials (BOM) schematics below. The engineering division at SXY Steel Group will promptly process a specialized nesting software calculation to optimize your processing layouts, cut scrap ratios to zero, and maximize procurement budgets.











