USA SAE A 681 (2008), A 681 H11 Specialsteel Tool Steels Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application | 
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | A 681 H11 | Precipitation-Hardening | SAE | USA | Tool Steels Alloy | 
| C | Si | Mn | P | S | Ni | Cr | Al | Cu | Ti | Fe | Mo | Co | V | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≤0.40 | ≤0.90 | ≤0.30 | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤5.00 | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤remaining | ≤1.30 | ≤ ≥ | ≤0.50 | 
| Yield Rp0.2 (MPa) | Tensile Rm (MPa) | Impact KV/Ku (J) | Elongation A (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | Brinell hardness (HBW) | 
|---|---|---|---|---|---|---|
| 222 (≥) | 531 (≥) | 22 | 42 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 233 | 
| Temperature (°C) | Modulus of elasticity (GPa) | Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) | Specific thermal capacity (J/kg·°C) | Specific electrical resistivity (Ω mm²/m) | Density (kg/dm³) | Poisson’s coefficient, ν | 
|---|---|---|---|---|---|---|---|
| 44 | - | - | 0.32 | - | |||
| 299 | 176 | - | 21.3 | 431 | - | ||
| 792 | - | 34 | 44.2 | 422 | 421 | 
Heat treated : 1171°C - 1952°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| H-11 | 
| A 681 (2008) | Tool Steels Alloy | A-681-(2008).pdf | 
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