B 674 N08925 Stainless Steels to B 674 (2005)

B 674 N08925 - Specification & Application

  • B 674 (2005) - Standard Specification for UNS N08925, UNS N08354, and UNS N08926 Welded Tube

Standard Specification for UNS N08925, UNS N08354, and UNS N08926 Welded Tube

Chemical composition(wt.%) of B 674 N08925 grade: to B 674 (2005)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.02
Mn - 1.00
Si - 0.50
P - 0.045
S - 0.03
Cr 24.00 26.00
Ni 19.00 21.00
Mo 6.00 7.00
Cu 0.80 1.50
N 0.10 0.20

B 674 N08925 - Detail

Standard Specification for UNS N08925, UNS N08354, and UNS N08926 Welded Tube

Mechanical properties of grade B 674 N08925 B 674 (2005)

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
576 (≥) 921 (≥) 14 33 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical properties of grade B 674 N08925 B 674 (2005)

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
766 (≥) 842 (≥) 23 31 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 141
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
845 345 968

Equivalent Products

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