JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
| Length | 6m or custom |
| Nickel content | 1.65-2.00% |
| Yield strength | 862 MPa (125 ksi) |
| Diameter range | 30 - 300mm |
| Phosphorus content | ≤0.035% |
| Hardness | 363 HB |
| Tensile strength | 1282 MPa (186 ksi) |
| Steel grade | 4340 Alloy Steel |
| Molybdenum content | 0.20-0.30% |
| Chromium content | 0.70-0.90% |
| Carbon content | 0.38-0.43% |
| Sulfur content | ≤0.04% |
| Manganese content | 0.60-0.80% |
| Silicon content | 0.15-0.35% |
| Elongation | 12.2% |
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Product Specification
| Length | 6m or custom | Nickel content | 1.65-2.00% |
| Yield strength | 862 MPa (125 ksi) | Diameter range | 30 - 300mm |
| Phosphorus content | ≤0.035% | Hardness | 363 HB |
| Tensile strength | 1282 MPa (186 ksi) | Steel grade | 4340 Alloy Steel |
| Molybdenum content | 0.20-0.30% | Chromium content | 0.70-0.90% |
| Carbon content | 0.38-0.43% | Sulfur content | ≤0.04% |
| Manganese content | 0.60-0.80% | Silicon content | 0.15-0.35% |
| Elongation | 12.2% | ||
| High Light | Polished Surface Alloy Steel Round Bar ，Custom Cutting 4340 Steel Round Bar ，Mold Steel Application 40CrNiMoA Steel Round Bar | ||
| Parameter | Specification |
|---|---|
| Diameter | 13 - 300mm |
| Length | 6m or custom cutting as requested |
| Grade | 4340 Alloy Steel |
| Services | Cutting, polishing, packing, heat treatment |
| Brands | BAOSTEEL, XINGCHENG, DSS, CHONGQING, XNSS, HLXT, etc. |
| Standards | GB, ASTM, JIS, EN, DIN |
| Company Type | Storage company and processing service |
| ASTM Standard | 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 |
| Condition | Tensile Strength, MPa (ksi), ≥ | Yield Strength, MPa (ksi), ≥ | Elongation in 50 mm (2 in.), ≥ | Reduction in Area, %, ≥ | Hardness, HB, ≤ |
|---|---|---|---|---|---|
| Normalized at 870 °C (1600 °F) | 1282 (186) | 862 (125) | 12.2 | 36.3 | 363 |
| Annealed at 810 °C (1490 °F) | 745 (108) | 470 (68) | 22.0 | 50.0 | 217 |
| Oil quenched from 800 °C (1475 °F) and tempered at 540 °C (1000 °F) | 1207 (175) | 1145 (166) | 14.2 | 45.9 | 352 |
| Region | Standard | Grade |
|---|---|---|
| USA | AISI, SAE, ASTM A29/A29M, ASTM A322, ASTM A519/A519M, ASTM A646/A646M | 4340 (UNS G43400) |
| China | GB/T 3077 | 40CrNi2Mo |
| Japan | 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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