USA AISI ASTM 4A,4Q and ASTM 4A,4Q Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application | 
|---|---|---|---|---|---|
| Steel Grades | Special Alloy | ASTM 4A,4Q | AISI | USA | |
| UNS J42065 | |||||
| ASTM E3N | |||||
| UNS J91550 | |||||
| ICI 1020 | |||||
| ASTM 1A | |||||
| ASTM 2A,2Q | |||||
| ICI 1030 | |||||
| ASTM 3A,3Q | |||||
| ICI 1040 | |||||
| ICI 1050 | 
| C(%) | Si(%) | Mn(%) | P(%) | S(%) | W(%) | Cu(%) | 
|---|---|---|---|---|---|---|
| 0.45-0.55 | 0.20-1.00 | 0.70-1.00 | Max 0.040 | Max 0.045 | Max 0.10 | Max 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) | 
|---|---|---|---|---|---|---|
| 542 (≥) | 467 (≥) | 41 | 14 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 443 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 24 | - | - | 0.33 | - | |||
| 465 | 938 | - | 33.3 | 224 | - | ||
| 847 | - | 34 | 12.2 | 141 | 411 | 
Heat treated : 1917°C - 1962°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| ASTM 1030 | ASTM | USA | General use carbon steel bar | 
| ASTM 1005 | ASTM | USA | General use carbon steel bar | 
| ASTM 1006 | ASTM | USA | General use carbon steel bar | 
| ASTM 1008 | ASTM | USA | General use carbon steel bar | 
| ASTM 1010 | ASTM | USA | General use carbon steel bar | 
| ASTM 1013 | ASTM | USA | General use carbon steel bar | 
| ASTM 1015 | ASTM | USA | General use carbon steel bar | 
| ASTM 1016 | ASTM | USA | General use carbon steel bar | 
| ASTM 1017 | ASTM | USA | General use carbon steel bar | 
| ASTM 1018 | ASTM | USA | General use carbon steel bar | 
| ASTM 1019 | ASTM | USA | General use carbon steel bar | 
| ASTM 1020 | ASTM | USA | General use carbon steel bar | 
| ASTM 1021 | ASTM | USA | General use carbon steel bar | 
| ASTM W1-A | ASTM | USA | Carbon tool steel | 
| ASTM A182 F55 | ASTM | USA | Super Duplex | 
| ASTM 431 | ASTM | USA | Martensitic special steel | 
| ASTM 440A | ASTM | USA | Martensitic special steel | 
| ASTM 440B | ASTM | USA | Martensitic special steel | 
| ASTM 440C | ASTM | USA | Martensitic special steel | 
| ASTM 501 | ASTM | USA | Martensitic special steel | 
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