SA-789 S32950 Stainless Steels to SA-789/SA-789M

SA-789 S32950 - Specification & Application

  • SA-789/SA-789M - Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Tubing for General Service

Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Tubing for General Service

Chemical composition(wt.%) of SA-789 S32950 grade: to SA-789/SA-789M

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.03
Mn - 2.00
Si - 0.60
P - 0.035
S - 0.01
Cr 26.00 29.00
Ni 3.50 5.20
Mo 1.00 2.50
N 0.15 0.35

SA-789 S32950 - Detail

Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Tubing for General Service

Mechanical properties of grade SA-789 S32950 SA-789/SA-789M

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)
911 (≥) 535 (≥) 23 21 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical properties of grade SA-789 S32950 SA-789/SA-789M

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
171 (≥) 744 (≥) 44 33 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 111
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
445 965 823

Equivalent Products

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