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SB-649 N08925

Description

USA AMS SB-649, SB-649 N08925 Specialsteel Specification for Ni-Fe-Cr-Mo-Cu Low-Carbon Alloy (UNS N08904), Ni-Fe-Cr-Mo-Cu-N Low-Carbon Alloys (UNS N08925, UNS N08031, and UNS N08926), and Cr-Ni-Fe-N Low-Carbon Alloy (UNS R20033) Bar and Wire and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: SB-649 N08925
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SB-649 N08925 Austenite AMS USA Specification for Ni-Fe-Cr-Mo-Cu Low-Carbon Alloy (UNS N08904), Ni-Fe-Cr-Mo-Cu-N Low-Carbon Alloys (UNS N08925, UNS N08031, and UNS N08926), and Cr-Ni-Fe-N Low-Carbon Alloy (UNS R20033) Bar and Wire

Chemical composition(mass fraction)(wt.%) of the SB-649 N08925

C Mn Si P S Cr Ni Mo Cu N
≤0.02 ≤1.00 ≤0.50 ≤0.045 ≤0.03 24.00 -26.00 19.00 -21.00 6.00 -7.00 0.80 -1.50 0.10 -0.20

Mechanical Properties of steel grade SB-649 N08925

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)
929 (≥) 471 (≥) 42 24 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade SB-649 N08925

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
41 - -     0.41 -  
638 951 - 13.3 221   -  
284 - 31 11.2   243 224

Heat Treatment of steel grade SB-649 N08925

Heat treated : 1543°C - 1587°C

Technological Curves of steel grade SB-649 N08925

Cross Reference Table (Equivalent Grade) of SB-649 N08925

Grade Standard Country Application
Cronifer 2803 Mo
CrOnifer 1925 hMO(N08925)
JS 1925 6Mo

Relevant standard of SB-649 N08925

SB-649 Specification for Ni-Fe-Cr-Mo-Cu Low-Carbon Alloy (UNS N08904), Ni-Fe-Cr-Mo-Cu-N Low-Carbon Alloys (UNS N08925, UNS N08031, and UNS N08926), and Cr-Ni-Fe-N Low-Carbon Alloy (UNS R20033) Bar and Wire SB-649.pdf

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