BS B.S. 805 H 20 Alloy Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Type | Steel Grade | Standard | Country | Application |
---|---|---|---|---|---|
Steel Grades | Alloy Steel | B.S. 805 H 20 | BS | ||
B.S. 530 M 40 |
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B.S. 530 M 40 |
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B.S. 640 M 40 |
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B.S. 708 A 37 |
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B.S. 708 A 42 |
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B.S. 708 M 40 |
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B.S. 709 A40 |
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B.S. 709 M 40 |
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B.S. 735 A 50 |
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B.S. 805 A 20 |
Element | Weight % |
C | 0.15-0.20 |
Mn | 0.70-0.90 |
P | 0.035 (max) |
S | 0.04 (max) |
Si | 0.15-0.30 |
Cr | 0.40-0.60 |
Ni | 0.40-0.70 |
Mo | 0.15-0.25 |
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) |
---|---|---|---|---|---|---|
898 (≥) | 692 (≥) | 33 | 44 | 24 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 414 |
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 | - | |||
686 | 533 | - | 34.3 | 121 | - | ||
587 | - | 43 | 43.2 | 124 | 313 |
Heat treated : 1312°C - 1434°C
Grade | Standard | Country | Application |
---|---|---|---|
Q195 | China | Engineering and welding | |
Q215 | China | Engineering and welding | |
Q215 B | China | Engineering and welding | |
Q235 | China | Engineering and welding | |
Q235 B | China | Engineering and welding | |
Q235 C | China | Engineering and welding | |
Q235 D | China | Engineering and welding | |
Q255 A | China | Engineering and welding | |
Q255 B | China | Engineering and welding | |
Q275 | China | Engineering and welding | |
Q235q C | China | Bridge structure with steel | |
Q235q D | China | Bridge structure with steel | |
Q345q E | China | Bridge structure with steel | |
Q345q C | China | Bridge structure with steel | |
ASTM 1030 | ASTM | USA | General use carbon steel bar |
UNS G10300 | UNS | USA | General use carbon steel bar |
ASTM 1005 | ASTM | USA | General use carbon steel bar |
UNS G10050 | UNS | USA | General use carbon steel bar |
ASTM 1006 | ASTM | USA | General use carbon steel bar |
UNS G10060 | UNS | USA | General use carbon steel bar |
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