ASTM 9Q
USA AISI ASTM 9Q and ASTM 9Q Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application |
|---|---|---|---|---|---|
| Steel Grades | Special Alloy | ASTM 9Q | AISI | USA | |
| ASTM 4A,4Q | |||||
| ICI 6120 | |||||
| ASTM 5N | |||||
| ASTM 6N | |||||
| ICI 4020 | |||||
| ASTM 7Q | |||||
| ICI 4130 | |||||
| ICI 4140 | |||||
| ASTM 8Q | |||||
| ICI 4330 |
Chemical composition(mass fraction)(wt.%) of the ASTM 9Q
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) | Mo(％) | W(%) | Cu(%) |
|---|---|---|---|---|---|---|---|---|---|
| 0.25-0.35 | 0.20-0.80 | 0.40-0.70 | Max 0.04 | Max 0.045 | 0.70-0.90 | 1.65-2.00 | 0.20-0.30 | Max 0.10 | Max 0.50 |
Mechanical Properties of steel grade ASTM 9Q
| 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) |
|---|---|---|---|---|---|---|
| 693 (≥) | 835 (≥) | 33 | 31 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 443 |
Physical Properties of steel grade ASTM 9Q
| 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 |
|---|---|---|---|---|---|---|---|
| 12 | – | – | 0.12 | – | |||
| 548 | 723 | – | 13.3 | 322 | – | ||
| 138 | – | 14 | 24.2 | 141 | 313 |
Heat Treatment of steel grade ASTM 9Q
Heat treated : 1317°C – 1447°C
Technological Curves of steel grade ASTM 9Q
No Curve
Cross Reference Table (Equivalent Grade) of ASTM 9Q
| 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 |