ISO H1 Stainless Steels to ISO 4955

ISO H1 - Specification & Application

  • ISO 4955 - Heat-resistant steels
  • ISO/TS 15510 (2003) - Stainless steels - Chemical composition

Stainless steels - Chemical composition

Chemical composition(wt.%) of ISO H1 grade: to ISO 4955

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 1.00
Mn - 1.00
P - 0.040
S - 0.030
Cr 10.50 12.50
Ni - 1.00
Ti 6×C% 1.00

ISO H1 - Detail

Stainless steels - Chemical composition

Mechanical properties of grade ISO H1 ISO 4955

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)
171 (≥) 356 (≥) 21 34 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical properties of grade ISO H1 ISO 4955

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
896 (≥) 353 (≥) 24 32 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 114
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
957 993 834

Equivalent Products

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