JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
| Diameter | 20 - 300mm |
| Length | 6m or custom |
| Grade | 4340 Alloy Steel |
| Carbon Content | 0.38-0.43% |
| Silicon Content | 0.15-0.35% |
| Manganese Content | 0.60-0.80% |
| Phosphorus Content | ≤0.035% |
| Sulfur Content | ≤0.04% |
| Nickel Content | 1.65-2.00% |
| Chromium Content | 0.70-0.90% |
| Molybdenum Content | 0.20-0.30% |
| Tensile Strength | 1282 MPa (186 ksi) |
| Yield Strength | 862 MPa (125 ksi) |
| Elongation | 12.2% |
| Hardness | 363 HB |
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Product Specification
| Diameter | 20 - 300mm | Length | 6m or custom |
| Grade | 4340 Alloy Steel | Carbon Content | 0.38-0.43% |
| Silicon Content | 0.15-0.35% | Manganese Content | 0.60-0.80% |
| Phosphorus Content | ≤0.035% | Sulfur Content | ≤0.04% |
| Nickel Content | 1.65-2.00% | Chromium Content | 0.70-0.90% |
| Molybdenum Content | 0.20-0.30% | Tensile Strength | 1282 MPa (186 ksi) |
| Yield Strength | 862 MPa (125 ksi) | Elongation | 12.2% |
| Hardness | 363 HB | ||
| High Light | AISI 4340 Alloy Steel Round Bar ，Hot Rolled Steel Rod ，Polished Surface Forged Steel Bar | ||
| Products | Alloy Steel Round Bar |
| Diameter | 13 - 300mm |
| Length | 6m or custom cutting as requested |
| Grade | 4340 Alloy Steel |
| Our Service | Cutting, polishing, packing, heat treatment |
| Brand | BAOSTEEL, XINGCHENG, DSS, CHONGQING, XNSS, HLXT, etc. |
| Standard | GB, ASTM, JIS, EN, DIN |
| Company Type | Storage company and process service |
| ASTM | Steel Grade (UNS) | C | Si | Mn | P (≤) | S (≤) | Ni | Cr | Mo | Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| ASTM A29/A29M | 4340 alloy steel (UNS G43400) | 0.38-0.43 | 0.15-0.35 | 0.60-0.80 | 0.035 | 0.04 | 1.65-2.00 | 0.70-0.90 | 0.20-0.30 | Steel Bars, Carbon and Alloy, Hot-Wrought |
| Steel | Condition | Tensile strength, MPa (ksi), ≥ | Yield strength, MPa (ksi), ≥ | Elongation in 50 mm (2 in.), ≥ | Reduction in area, %, ≥ | Hardness, HB, ≤ |
|---|---|---|---|---|---|---|
| 4340 | Normalized at 870 °C (1600 °F) | 1282 (186) | 862 (125) | 12.2 | 36.3 | 363 |
| 4340 | Annealed at 810 °C (1490 °F) | 745 (108) | 470 (68) | 22.0 | 50.0 | 217 |
| 4340 | Oil quenched from 800 °C (1475 °F) and tempered at 540 °C (1000 °F) | 1207 (175) | 1145 (166) | 14.2 | 45.9 | 352 |
| US | European Union | China | Japan | ISO |
|---|---|---|---|---|
| AISI/SAE; ASTM A29/A29M; ASTM A322; ASTM A519/A519M; ASTM A646/A646M (UNS G43400) | SAE AMS6414 | GB/T 3077 40CrNi2Mo | JIS G 4053 SNCM439 |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
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