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B668 N08029

America ASTM B668N08029 Standard Specification for UNS N08028 Seamless Pipe and Tube and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B668N08029 / B668 N08029
Category Grade Standard Region/Area Standard Content
Metals B668 N08029 ASTM B668 America Standard Specification for UNS N08028 Seamless Pipe and Tube

Chemical composition(mass fraction)(wt.%) of the B668 N08029

Element Min Max Similar
C - 0.0200 -
Mn - 2.0000 -
P - 0.0250 -
S - 0.0150 -
Si - 0.6000 -
Ni 30.0000 34.0000 -
Cr 26.0000 28.0000 -
Mo 4.0000 5.0000 -
Cu 0.6000 1.4000 -
Fe - - -

Mechanical Properties of steel grade B668 N08029

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)
599 (≥) 952 (≥) 23 31 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade B668 N08029

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
14 - -     0.24 -  
929 258 - 43.3 133   -  
519 - 24 42.2   321 431

Heat Treatment of steel grade B668 N08029

Heat treated : 1161°C - 1312°C

Technological Curves of steel grade B668 N08029

Cross Reference Table (Equivalent Grade) of B668 N08029

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