GBT 40CrMn Enquiry | Print this page
| Category | Type | Steel grade | Standard | Country |
|---|---|---|---|---|
| Grades | Special Alloy | 40CrMn | GBT | China |
Chemical composition % of the ladle analysis of grade 40CrMn
| C(％) | Si(％) | Mn(％) | Cr(％) |
|---|---|---|---|
| 0.37-0.45 | 0.17-0.37 | 0.90-1.20 | 0.90-1.20 |
| 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) |
|---|---|---|---|---|---|---|
| 183 (≥) | 795 (≥) | 41 | 13 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 113 |
| 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 |
|---|---|---|---|---|---|---|---|
| 978 (≥) | 254 (≥) | 32 | 24 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 111 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 438 | 234 | 569 |
| 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 |
|---|---|---|---|
| 40CrMnMo7 | GBT | China | Heat resistant materials for the extrusion processing of aluminum and aluminum alloys |
| 40CrMnMoS8-6 | GBT | China | Tool Steels; Technical Conditions of Delivery |
| 40CrMnNiMo8-6-4 | GBT | China | Alloyed CrMnNiMo steel |
| 1.2311,40CrMnMoS8-6,1.2312,P20,40CMD8 | GBT | China | Tool Steels; Technical Conditions of Delivery |