X7CrNiSiNCe21-11 Stainless Steels to ISO 15510 (2010)

X7CrNiSiNCe21-11 - Specification & Application

  • ISO 15510 (2010) - Stainless steels -- Chemical composition
  • ISO 16143-3 (2005) - Stainless steels for general purposes -- Part 3: Wire
  • ISO 4955 (2005) - Heat-resistant steels

Heat-resistant steels

Chemical composition(wt.%) of X7CrNiSiNCe21-11 grade: to ISO 15510 (2010)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.10
Si 1.40 2.00
Mn - 0.80
P - 0.045
S - 0.030
Cr 20.00 22.00
Ni 10.00 12.00
N 0.14 0.20
Ce 0.03 0.08

X7CrNiSiNCe21-11 - Detail

Heat-resistant steels

Mechanical properties of grade X7CrNiSiNCe21-11 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)
737 (≥) 338 (≥) 24 44 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical properties of grade X7CrNiSiNCe21-11 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
581 (≥) 726 (≥) 44 41 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 344
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
679 239 262

Equivalent Products

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