ASTM M4 Enquiry | Print this page
ASTM M4 Details
High-Speed Tool Steel
ASTM M4 Standard Download
M4 Datasheet
ASTM M4| Category | Type | Grade | Designations |
|---|---|---|---|
| Grades | Tool Die Steels | M4 | USA - ASTM , |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 1.25 | 1.40 | ||
| Si | 0.20 | 0.45 | ||
| Mn | 0.15 | 0.40 | ||
| P | - | 0.030 | ||
| S | - | 0.030 | ||
| Cr | 3.75 | 4.75 | ||
| Mo | 4.25 | 5.50 | ||
| V | 3.75 | 4.50 | ||
| W | 5.25 | 6.50 | ||
| Co | - | - |
| 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) |
|---|---|---|---|---|---|---|
| 729 (≥) | 913 (≥) | 22 | 12 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 141 |
| 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 |
|---|---|---|---|---|---|---|---|
| 915 (≥) | 286 (≥) | 13 | 22 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 123 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 697 | 883 | 855 |
| 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 564 S45000 | SAE | USA | Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes |
| A 693 S45000 | SAE | USA | Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip |
| A 705 S45000 | SAE | USA | Age-Hardening Stainless Steel Forgings |
| S45000 | AISI | USA | Stainless Steel |
| SA-564 S45000 | AMS | USA | Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes |
| SA-693 S45000 | AMS | USA | Specification for Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip |
| SA-705 S45000 | AMS | USA | Specification for Age-Hardening Stainless Steel Forgings |
| A 313 S45500 | SAE | USA | Stainless Steel Spring Wire |
| A 564 S45500 | SAE | USA | Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes |
| A 693 S45500 | SAE | USA | Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip |
| A 705 S45500 | SAE | USA | Age-Hardening Stainless Steel Forgings |
| S45500 | AISI | USA | Stainless Steel (Custom 455) |
| SA-564 S45500 | AMS | USA | Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes |
| SA-693 S45500 | AMS | USA | Specification for Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip |
| SA-705 S45500 | AMS | USA | Specification for Age-Hardening Stainless Steel Forgings |
| Custom 450 | ASTM | USA | Steel, Corrosion Resistant Bars, Forgings, Tubing, and Rings 15Cr - 6.5Ni - 0.75Mo - 0.50 (Cb + Ta) - 1.5Cu Solution Heat Treated |
| Custom 450 | ASTM | USA | Steel, Corrosion-Resistant, Bars, Wire, Forgings, Tubing, and Rings 15Cr - 6.5Ni - 0.75Mo - 0.30 Cb (Nb) - 1.5Cu Consumable Electrode Remelted, Solution Heat Treated Precipitation Hardenable |
| Custom 450 | ASTM | USA | Steel, Corrosion Resistant, Sheet, Strip, and Plate 15Cr - 6.5Ni - 0.75Mo - 0.30Cb - 1.5Cu Consumable Electrode Melted, Solution Heat Treated Precipitation Hardenable |
| Custom 450 | ASTM | USA | Steel, Corrosion Resistant, Sheet, Strip, and Plate 15Cr - 6.5Ni - 0.75Mo - 0.60Cb - 1.5Cu Solution Heat Treated, Precipitation Hardenable |
| Custom 450 | UNS | USA | Steel, Corrosion Resistant Bars, Forgings, Tubing, and Rings 15Cr - 6.5Ni - 0.75Mo - 0.50 (Cb + Ta) - 1.5Cu Solution Heat Treated |