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40Mn2
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37SiMn2MoV - GBT
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Chemical composition % of the ladle analysis of grade 40B
| C(％) | Si(％) | Mn(％) | B(%) |
| 0.37-0.44 | 0.17-0.37 | 0.60-0.90 | 0.0005-0.0035 |
| Proof strength Rp0.2 (MPa) |
Tensile strength Rm (MPa) |
Impact energy KV (J) |
Elongation at fracture A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 333 (≥) | 758 (≥) | 21 | 14 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 331 |
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J / kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
|---|---|---|---|---|---|---|---|
| 738 (≥) | 817 (≥) | 14 | 43 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 212 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 754 | 271 | 912 |
| Product type | Products | Dimension | Processes | Deliver Status |
|---|---|---|---|---|
| Plates / Sheets | Plates / Sheets | 0.08-200mm(T)*W*L | Forging, hot rolling and cold rolling | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Steel Bar | Round Bar, Flat Bar, Square Bar | Φ8-1200mm*L | Forging, hot rolling and cold rolling, Cast | Black, Rough Turning, Shot Blasting, |
| Coil / Strip | Steel Coil /Steel Strip | 0.03-16.0x1200mm | Cold-Rolled & Hot-Rolled | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Pipes / Tubes | Seamless Pipes/Tubes, Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion, Cold Drawn, Welded | Annealed, Solution and Aging, Q+T, ACID-WASHED |
| Grade | Standard | Country | Application |
|---|---|---|---|
| A 276 S44003 | Stainless Steel Bars and Shapes |
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| A 314 S44003 | Stainless Steel Billets and Bars for Forging |
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| A 473 S44003 | Stainless Steel Forgings |
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| A 580 S44003 | Stainless Steel Wire |
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| S44003 | Hardenable Chromium Stainless Steel |
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| SUS 440B | Stainless steel bars |
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| STS440B | Stainless steel bars |
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| 440B | Stainless steel bars |
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| ASTM440B | ASTM440B |
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| AISI440B | AISI440B |