Multi-Grade Carbon Steel Flat Bar
🔥 Stop letting unstable structural steel flat supplies derail your manufacturing line or risking heavy commercial penalties due to brittle, micro-cracked bar edges.
SXY Steel Group provides premier commercial-grade hot rolled carbon steel flat bars featuring superior structural weldability, clean shear edges, and 100% verifiable mill tracking. Guaranteed 2-Hour Rapid Quote to secure your engineering contract margins instantly.
Frustrated by sudden market price spikes while waiting days for a supplier quotation? Safeguard your budget and eliminate cross-border sourcing friction now.
PRODUCT DETAILS
📊 Carbon Steel Flat Bar Global Standard Cross-Reference Matrix
| American Standard (ASTM) | European Standard (EN) | Japanese Standard (JIS) | Standard Dimensions (Width × Thickness / mm) | 7-Day Price Protection & Market Risk Defense |
|---|---|---|---|---|
| ASTM A36 | EN S235JR | JIS SS400 | 30 × 4.0 | ✓ Secured / Insulated From Market Spikes |
| ASTM A36 | EN S235JR | JIS SS400 | 40 × 5.0 | ✓ Secured / Insulated From Market Spikes |
| ASTM A572 Gr.50 | EN S355JR | JIS SM490A | 75 × 8.0 | ⏳ Price Lock Available Upon Inquiry |
| ASTM A572 Gr.60 | EN S355J2 | JIS SM490YB | 120 × 12.0 | ⏳ Price Lock Available Upon Inquiry |
• Machinery Safeguards: Perfectly uniform flat profiles preventing automated laser cutting or cnc punching line jams.
• Strict Gauge Audits: Comprehensive physical caliper micrometer verification reports provided prior to shipping.
• Edge Treatments: Supplying clean-sheared edges, rounded corners, or deburred profiles tailored to your exact blueprints.
• Protective Top-Coats: Immediate line options for post-shearing anti-rust oil application or quick structural primer coating.
Steel Products Specifications
| Specifications | Standard | Surface treatment | Certification | Technique | Edge |
|---|---|---|---|---|---|
| Dimensions: 20×20-350×350mm, etc Length: 2000-12000mm, or as required | ASTM, AISI, JIS, GB, DIN, EN | Black / Peeling / Polishing / Machined | ISO, SGS, BV, Mill, CE Certificate | Cold/Hot rolled, Cold-Drawn, or Hot Forged | Mill Edge / Slit Edge |
| Material | |||||
| A53, A283, A106-A, A179, A214-C, A192, A226, A315, A106, A178 | |||||
| Q195, Q235, Q275, 10#, 15#, 20# | |||||
| 20G, STPG38, STS38, STB30, STS42, STB42, STB35 | |||||
| SS400, ST33, ST37, ST35.8, ST42, ST45-8, ST52 | |||||
| Price terms | FOB, CRF, CIF, EXW, all acceptable | ||||
| Delivery Detail | Inventory: About 3-5 days; Custom-made: 15-20 days; According to order’s quantity | ||||
| Standard export packing (inside: water proof paper, outside: steel covered with strips and pallets) | |||||
| 20ft GP: 5898mm(Length) × 2352mm(Width) × 2393mm(High) | |||||
| 40ft GP: 12032mm(Length) × 2352mm(Width) × 2393mm(High) | |||||
| 40ft HC: 12032mm(Length) × 2352mm(Width) × 2698mm(High) | |||||
Flat steel refers to steel with a width of 12-300mm, a thickness of 3-60mm, a rectangular cross-section and a slight blunt edge. Flat steel can be finished steel, and can also be used as blanks for welded pipes and thin slabs for stacked sheets. Main application: Flat steel can be used as a finished material to make hoop iron, tools and mechanical parts, and it can be used as a house frame structure and escalator in construction.

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.

🔬 Request a Free Cross-Border Material Compliance & Equivalence Audit
Confused about replacing restrictive local steel grades with international alternatives? Drop us your engineering material schedule. SXY Steel Group metallurgists will run a thorough mechanical property equivalence analysis for free to guarantee passing site inspections.











