X70CrMo15 Stainless Steels to BS EN 10088-1

X70CrMo15 - Specification & Application

  • BS EN 10088-1 - Stainless steels - Part 1: List of stainless steels
  • BS EN 10088-3 - Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes

Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes

Chemical composition(wt.%) of X70CrMo15 grade: to BS EN 10088-1

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.65 0.75
Si - 0.70
Mn - 1.00
P - 0.04
S - 0.015
Cr 14.00 16.00
Ni - -
Mo 0.40 0.80

X70CrMo15 - Detail

Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes

Mechanical properties of grade X70CrMo15 BS EN 10088-1

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)
343 (≥) 284 (≥) 42 24 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical properties of grade X70CrMo15 BS EN 10088-1

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
353 (≥) 249 (≥) 13 42 43 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
963 229 477
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