China GB GB/T 14992 (1994) , GB/T 14995 (2010) , GB/T 14996 (2010) , GH2018 Specialsteel Classification and designation for superalloys and high temperature intermetallic materials and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Standard | Country | Application | 
|---|---|---|---|---|---|
| Steel Grades | Specialsteel | GH2018 | GB | China | Classification and designation for superalloys and high temperature intermetallic materials | 
| C | Cr | Mo | Ni | W | Al | Ti | Si | Mn | P | S | B | Ce | Zr | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≤0.06 | 18.0 -21.0 | 3.70 -4.30 | 40.0 -44.0 | 1.80 -2.20 | 0.35 -0.75 | 1.80 -2.20 | ≤0.60 | ≤0.50 | ≤0.020 | ≤0.015 | ≤0.015 | ≤0.02 | ≤0.05 | 
| 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) | 
|---|---|---|---|---|---|---|
| 894 (≥) | 614 (≥) | 31 | 34 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 112 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 21 | - | - | 0.31 | - | |||
| 867 | 331 | - | 21.3 | 424 | - | ||
| 453 | - | 43 | 43.2 | 111 | 122 | 
Heat treated : 1735°C - 1181°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| GH2018 | 
| GB/T 14992 (1994) | Classification and designation for superalloys and high temperature intermetallic materials | GB-T-14992--(1994)-.pdf | 
| GB/T 14995 (2010) | Hot-rolled superalloy sheets | GB-T-14995--(2010)-.pdf | 
| GB/T 14996 (2010) | Cold-Rolled heat-resisting superalloy sheets | GB-T-14996--(2010)-.pdf | 
Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...
Rfq.: sales@longhaisteel.com