SA-479 Type 309H Stainless Steels to SA-479/SA-479M

SA-479 Type 309H - Specification & Application

  • SA-479/SA-479M - Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels

Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels

Chemical composition(wt.%) of SA-479 Type 309H grade: to SA-479/SA-479M

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 0.75
Mn - 2.00
P - 0.045
S - 0.030
Cr 22.0 24.0
Ni 12.0 15.0

SA-479 Type 309H - Detail

Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels

Mechanical properties of grade SA-479 Type 309H SA-479/SA-479M

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)
734 (≥) 728 (≥) 12 34 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical properties of grade SA-479 Type 309H SA-479/SA-479M

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
938 (≥) 983 (≥) 22 11 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 432
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
214 563 252

Equivalent Products

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