309HCb Stainless Steels to SAE J 405 (1998)

309HCb - Specification & Application

  • SAE J 405 (1998) - Chemical compositions of SAE wrought stainless steels

Chemical compositions of SAE wrought stainless steels

Chemical composition(wt.%) of 309HCb grade: to SAE J 405 (1998)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.04 0.10
Si - 0.75
Mn - 2.00
P - 0.045
S - 0.03
Cr 22.0 24.0
Ni 12.0 16.0
Nb - 1.100

309HCb - Detail

Chemical compositions of SAE wrought stainless steels

Mechanical properties of grade 309HCb SAE J 405 (1998)

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)
539 (≥) 168 (≥) 41 23 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical properties of grade 309HCb SAE J 405 (1998)

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
178 (≥) 389 (≥) 33 42 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 212
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
293 922 341

Equivalent Products

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