SB-444 N06625 Grade 2 Stainless Steels to SB-444

SB-444 N06625 Grade 2 - Specification & Application

  • SB-444 - Nickel-Chromium-Molybdenum-Columbium Alloys (UNS N06625 and UNS N06852) and Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219) Pipe and Tube

Nickel-Chromium-Molybdenum-Columbium Alloys (UNS N06625 and UNS N06852) and Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219) Pipe and Tube

Chemical composition(wt.%) of SB-444 N06625 Grade 2 grade: to SB-444

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.01
Si - 0.05
Mn - 1.50
P - 0.04
S - 0.01
Ni - remaining
Cr 0.50 1.50
Al 0.10 0.50
Cu - 0.50
Ti - -
Fe 1.00 6.00
Mo 26.00 30.00
Co - 2.50

SB-444 N06625 Grade 2 - Detail

Nickel-Chromium-Molybdenum-Columbium Alloys (UNS N06625 and UNS N06852) and Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219) Pipe and Tube

Mechanical properties of grade SB-444 N06625 Grade 2 SB-444

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)
162 (≥) 214 (≥) 44 24 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical properties of grade SB-444 N06625 Grade 2 SB-444

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
248 (≥) 575 (≥) 42 22 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 331
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
619 857 576

Equivalent Products

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