USA SAE B 622 (2010), B 622 R20033 Specialsteel Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application | 
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | B 622 R20033 | Precipitation-Hardening | SAE | USA | Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube | 
| C | Si | Mn | Cr | Ni | Mo | Co | W | Al | Cu | Ti | Fe | Nb | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≤0.12 | ≤0.30 | ≤0.80 | ≤19.00 | ≤14.00 | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤remaining | ≤1.60 | 
| 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) | 
|---|---|---|---|---|---|---|
| 867 (≥) | 424 (≥) | 32 | 22 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 314 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 43 | - | - | 0.31 | - | |||
| 995 | 922 | - | 13.3 | 221 | - | ||
| 613 | - | 13 | 22.2 | 421 | 133 | 
Heat treated : 1767°C - 1165°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| R-20 | |||
| 25Cr-20Ni | |||
| 25Cr-20Ni+ | |||
| 29Cr-20Ni | |||
| 25Cr-20Ni | |||
| 25Cr-20Ni | |||
| 25Cr-20Ni | |||
| 25Cr-20Ni | |||
| 25Cr-20Ni | |||
| 29Cr-20Ni | |||
| 29Cr-20Ni | |||
| 29Cr-20Ni | 
| B 622 (2010) | Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube | B-622-(2010).pdf | 
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