ASTM M4 Enquiry | Print this page
- Category
- Type
- Steel grade
- Standard
- Country
- USE
- Grades
- Special Alloy
- » M4
T12015
M1
T11301
M2
T11302
M2 hight C
M3 Class1
T11313
M3 Class2
T11323 - ASTM
- USA
- Molybdenum series High-speed tool steel
Chemical composition % of the ladle analysis of grade M4
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Mo(％) | V(%) | W(%) |
| 1.25～1.40 | 0.20～0.45 | 0.15～0.40 | ≤0.030 | ≤0.030 | 3.75～4.75 | 4.25～5.50 | 3.75～4.50 | 5.25～6.50 |
| 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) |
|---|---|---|---|---|---|---|
| 434 (≥) | 854 (≥) | 22 | 44 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 324 |
| 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 |
|---|---|---|---|---|---|---|---|
| 489 (≥) | 322 (≥) | 22 | 43 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 224 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
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| 751 | 112 | 182 |
| 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 | Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes |
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| A 693 S45000 | Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip |
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| A 705 S45000 | Age-Hardening Stainless Steel Forgings |
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| S45000 | Stainless Steel |
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| SA-564 S45000 | Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes |
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| SA-693 S45000 | Specification for Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip |
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| SA-705 S45000 | Specification for Age-Hardening Stainless Steel Forgings |
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| A 313 S45500 | Stainless Steel Spring Wire |
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| A 564 S45500 | Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes |
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| A 693 S45500 | Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip |
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| A 705 S45500 | Age-Hardening Stainless Steel Forgings |
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| S45500 | Stainless Steel (Custom 455) |
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| SA-564 S45500 | Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes |
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| SA-693 S45500 | Specification for Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip |
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| SA-705 S45500 | Specification for Age-Hardening Stainless Steel Forgings |
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| Custom 450 | Steel, Corrosion Resistant Bars, Forgings, Tubing, and Rings 15Cr - 6.5Ni - 0.75Mo - 0.50 (Cb + Ta) - 1.5Cu Solution Heat Treated |
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| Custom 450 | 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 |
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| Custom 450 | Steel, Corrosion Resistant, Sheet, Strip, and Plate 15Cr - 6.5Ni - 0.75Mo - 0.30Cb - 1.5Cu Consumable Electrode Melted, Solution Heat Treated Precipitation Hardenable |
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| Custom 450 | Steel, Corrosion Resistant, Sheet, Strip, and Plate 15Cr - 6.5Ni - 0.75Mo - 0.60Cb - 1.5Cu Solution Heat Treated, Precipitation Hardenable |
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| Custom 450 | Steel, Corrosion Resistant Bars, Forgings, Tubing, and Rings 15Cr - 6.5Ni - 0.75Mo - 0.50 (Cb + Ta) - 1.5Cu Solution Heat Treated |