China GB GB/T 11251 (2009), GB/T 17396 (2009), GB/T 3077 (1999), GB/T 3078 (2008), GB/T 8162 (2008), 27SiMn Specialsteel Structural and constructional steels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Standard | Country | Application |
---|---|---|---|---|---|
Steel Grades | Specialsteel | 27SiMn | GB | China | Structural and constructional steels |
C | Si | Mn | P | S | Cu | Cr | Ni | Mo |
---|---|---|---|---|---|---|---|---|
0.24 -0.32 | 1.10 -1.40 | 1.10 -1.40 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.30 | ≤0.30 | ≤0.15 |
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) |
---|---|---|---|---|---|---|
375 (≥) | 636 (≥) | 34 | 31 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 122 |
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 |
---|---|---|---|---|---|---|---|
34 | - | - | 0.42 | - | |||
148 | 942 | - | 21.3 | 122 | - | ||
689 | - | 23 | 24.2 | 143 | 413 |
Heat treated : 1299°C - 1855°C
GB/T 11251 (2009) | Hot-rolled alloy structural steel plates | GB-T-11251-(2009).pdf |
GB/T 17396 (2009) | Hot-rolled seamless steel tubes for hydraulic pillar service | GB-T-17396-(2009).pdf |
GB/T 3077 (1999) | Alloy structure steels | GB-T-3077-(1999).pdf |
GB/T 3078 (2008) | Quality structural steel cold drawn bars | GB-T-3078-(2008).pdf |
GB/T 8162 (2008) | Seamless steel tubes for structural purposes | GB-T-8162-(2008).pdf |
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