ISO 9A Stainless Steels to ISO 15510 (2010)

ISO 9A - Specification & Application

  • ISO 15510 (2010) - Stainless steels -- Chemical composition
  • ISO/TS 15510 (2003) - Stainless steels - Chemical composition

Stainless steels - Chemical composition

Chemical composition(wt.%) of ISO 9A grade: to ISO 15510 (2010)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.10 0.17
Si - 1.00
Mn - 1.50
P - 0.040
S 0.15 -
Cr 16.00 18.00
Ni - -
Mo - 0.06
N - -

ISO 9A - Detail

Stainless steels - Chemical composition

Mechanical properties of grade ISO 9A ISO 15510 (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)
653 (≥) 377 (≥) 21 22 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical properties of grade ISO 9A ISO 15510 (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
645 (≥) 455 (≥) 44 22 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 231
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
183 629 958

Equivalent Grade

Equivalent Products

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