A 789 S32750 Stainless Steels to A 789/A 789M (2010)

A 789 S32750 - Specification & Application

  • A 789/A 789M (2010) - Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service

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

Chemical composition(wt.%) of A 789 S32750 grade: to A 789/A 789M (2010)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.03
Mn - 1.20
Si - 0.80
P - 0.035
S - 0.02
Cr 24.00 26.00
Ni 6.00 8.00
Mo 3.00 5.00
N 0.24 0.32
Cu - 0.50

A 789 S32750 - Detail

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

Mechanical properties of grade A 789 S32750 A 789/A 789M (2010)

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)
315 (≥) 288 (≥) 11 24 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical properties of grade A 789 S32750 A 789/A 789M (2010)

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
159 (≥) 226 (≥) 11 21 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 434
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
311 988 823
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