Carbon Steel Round Bar
Our mill direct production network supplies premium-grade carbon steel round bars engineered for heavy structural engineering, high-stress mechanical machining, and structural pressure configurations. We guarantee precise cross-sectional grain structure uniform stability and verified dimensional straightness boundaries backed by our direct 2-Hour Rapid Quote technical protocol.
Tired of waiting days for price quotes while your strict project bidding deadline runs out? Terrified of low-grade structural carbon rods that crack under heavy machining, fail critical site inspections, and ruin your career reputation? Secure your mill-verified testing records instantly.
PRODUCT DETAILS
Carbon Steel Round Bar Three-Standard Cross Matrix
| American Standard (ASTM Spec) | European Standard (EN Spec) | Japanese / Chinese Equivalent (JIS/GB) | Diameter & Processing Scope | Application / Strength Limits |
|---|---|---|---|---|
| ASTM A53 Grade B | EN 10025 S275JR | JIS G3101 SS400 / Q235B | 6mm – 250mm / Hot Rolled Black Bar | General Structural, High Machinability |
| ASTM A106 Grade B | EN 10216-2 P265GH | JIS G3456 STPT410 / 20# Solid Rod | 8mm – 400mm / Hot Rolled, Smooth Finished | Severe High-Temperature & Structural Pressure |
| ASTM A350 LF2 | EN 10222-2 P285NH | JIS G3205 SFL2 / 16Mn Forged | 12mm – 300mm / Forged & Normalized Finish | Low-Temperature Impact Hardness Service |
Technical QA/QC Verification
• EN 10204 3.1 Material Test Certificates (MTC) & Mechanical Profiles: All incoming allocations are paired with verified original MTC tracking data sheets, itemizing comprehensive heat numbers, mechanical yield-stress boundaries, elongation ratios, and chemical composition configurations. Fully aligned to accommodate independent third-party inspection reviews from SGS, Bureau Veritas, or Intertek.
• Sovereign Capital Security Framework: To insulate commercial engineering contractors and procurement firms from international currency changes and delivery scheduling anxieties, we execute all high-volume productions under 100% Irrevocable Letters of Credit (L/C) at sight financial protocols.
Internal Protection & Ocean Logistics
• Reinforced Rigid Iron Cradle Palletization & Timber-Choked Chocking: Finished bundles are arranged inside heavy iron alignment frame cradles or robust wooden end-boxes to completely eliminate linear bending or shifting during terminal crane operations. The total container configuration is cross-braced using heavy steel straps and internal wood block locks to handle high-seas rolling.
• Complimentary 14-21 Days Extended Destination Port Demurrage Buffer: SXY Steel Group proactively secures pre-cleared, extended 14 to 21 days of container free-time demurrage parameters on your ocean Bill of Lading, giving your customs agent an open window to handle processing without incurring costly storage fines.
| Item | Description |
|---|---|
| Material | ASTM Grades: 1005, 1006, 1008, 1010, 1015, 1020, 1025, 1030, 1035, 1040, 1045, 1050, 1055, 1060, 1065, 1070, 1080, 1084, 1016, 1022 DIN Grades: Ck10, Ck15, Ck22, Ck25, Ck30, Ck35, Ck40, Ck45, Ck50, 30Mn4, 40Mn4 BS Grades: 040A04, 095M15, 045M10, 080A40, 045M10, 080M50 |
| Thickness | Diameter: 5mm – 500mm or as required |
| Standard | ASTM A29, ASTM A576, EN 10083-2, JIS G4051, GB/T 699 |
| Technique | Hot rolled, Cold drawn |
| Surface Treatment | Clean, blasting and painting according to customer requirement |
| Thickness tolerance | Per standard. Example (EN 10060 h11 for 50mm dia): ±0.5mm. |
| Application | Shafts, gears, bolts, connecting rods, machinery and structural parts. |
| Shipment time | Within 7-15 workdays after receiving deposit or L/C |
| Export packing | Waterproof paper, and steel strip packed. Standard Export Seaworthy Package. Suit for all kinds of transport, or as required |
Round steel belongs to carbon structural steel for construction and machinery, while square steel belongs to carbon structural
steel for machinery. Both of them are simple section steel, and their section shapes are respectively round and square. Low carbon is mainly used for
drawing wire, forging rivets, bolts, nuts and other metal products of raw materials. Medium carbon round steel and square steel
are generally used to make mechanical structural parts.
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 Carbon Steel Nesting Optimization Analysis & Pressure Structural Drawing BOM Audit
Designing industrial structural shafts, machine tool components, high-pressure processing lines, or replying to a high-volume global carbon steel procurement tender? Upload your target rod lengths, precision engineering tolerances, cut plans, or raw engineering Bill of Materials (BOM) drawing files below. SXY Steel Group’s engineering department will execute a complete nesting calculation to cut scrap metal losses and safeguard your production budget.
