USA AMS SB-729, SB-729 N08024 Specialsteel Specification for Seamless UNS N08020, UNS N08026, and UNS N08024 Nickel-Alloy Pipe and Tube and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Type | Standard | Country | Application |
---|---|---|---|---|---|---|
Steel Grades | Specialsteel | SB-729 N08024 | Austenite | AMS | USA | Specification for Seamless UNS N08020, UNS N08026, and UNS N08024 Nickel-Alloy Pipe and Tube |
C | Mn | Si | P | S | Cr | Ni | Mo | Cu | Nb |
---|---|---|---|---|---|---|---|---|---|
≤0.03 | ≤1.00 | ≤0.50 | ≤0.035 | ≤0.035 | 22.50 -25.00 | 35.00 -40.00 | 3.50 -5.00 | 0.50 -1.50 | 0.15 -0.35 |
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) |
---|---|---|---|---|---|---|
887 (≥) | 577 (≥) | 42 | 44 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 132 |
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 |
---|---|---|---|---|---|---|---|
42 | - | - | 0.34 | - | |||
557 | 286 | - | 14.3 | 432 | - | ||
824 | - | 12 | 12.2 | 341 | 114 |
Heat treated : 1396°C - 1628°C
Grade | Standard | Country | Application |
---|---|---|---|
20Cb-3,20Mo-4,20Mo-6 |
SB-729 | Specification for Seamless UNS N08020, UNS N08026, and UNS N08024 Nickel-Alloy Pipe and Tube | SB-729.pdf |
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