AS 4140 Enquiry | Print this page
| Category | Type | Steel grade | Standard | Country |
|---|---|---|---|---|
| Grades | Special Alloy | 4140 | AS | Australia |
Chemical composition % of the ladle analysis of grade 4140
| C(％) | Si(％) | Mn(％) | P(％) | Cr(％) | Mo(％) |
|---|---|---|---|---|---|
| 0.38-0.43 | 0.10-0.35 | 0.75-1.00 | 0.040 0.040 | 0.80-1.10 | 0.15-0.25 |
| 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) |
|---|---|---|---|---|---|---|
| 351 (≥) | 274 (≥) | 12 | 32 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 114 |
| 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 |
|---|---|---|---|---|---|---|---|
| 883 (≥) | 933 (≥) | 31 | 12 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 243 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 344 | 773 | 788 |
| 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 S41400 | AS | Australia | Stainless Steel Bars and Shapes |
| A 314 S41400 | AS | Australia | Stainless Steel Billets and Bars for Forging |
| A 473 S41400 | AS | Australia | Stainless Steel Forgings |
| A 580 S41400 | AS | Australia | Stainless Steel Wire |
| S41400 | AS | Australia | Martensitic Chromium Stainless Steel |
| NV7(4140) | AS | Australia | Steel for intake valves |
| H41400 | AS | Australia | Steel for intake valves |