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| Category | Type | Steel grade | Country |
|---|---|---|---|
| Grades | Special Alloy | T7 | China |
Chemical composition % of the ladle analysis of grade T7
| C(％) | Si(％) | Mn(％) | P(％) | S(％) |
|---|---|---|---|---|
| 0.65～0.74 | ≤0.35 | ≤0.40 | ≤ 0.035 | ≤ 0.030 |
The performance characteristics of carbon steel and use
| 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) |
|---|---|---|---|---|---|---|
| 895 (≥) | 445 (≥) | 43 | 43 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 143 |
| 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 |
|---|---|---|---|---|---|---|---|
| 141 (≥) | 373 (≥) | 31 | 33 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 412 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 487 | 356 | 711 |
| 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 |
|---|---|---|---|
| T72301 | China | Carbon tool steel products which include hot or cold finished bar, plate, sheet, rod, wire, or forgings, which are normally fabricated into tools, dies, or fixtures. |
|
| W2-A | China | Carbon tool steel products which include hot or cold finished bar, plate, sheet, rod, wire, or forgings, which are normally fabricated into tools, dies, or fixtures. |
|
| T72302 | China | Carbon tool steel products which include hot or cold finished bar, plate, sheet, rod, wire, or forgings, which are normally fabricated into tools, dies, or fixtures. |
|
| T72305 | China | Carbon tool steel |
|
| Udimet 700 | China | Special Purpose Alloys ("Superalloys") |
|
| T7 | China | High-Speed Tool Steel |