X21Cr13 Tool Die Steels

X21Cr13 - Specification & Application

Tools high alloyed Cr steel

Chemical composition(wt.%) of X21Cr13 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.17 0.22
Si 0.30 0.50
Mn 0.20 0.40
P - 0.035
S - 0.035
Cr 12.50 13.50
Mo - -
V - -

X21Cr13 - Detail

Tools high alloyed Cr steel

Mechanical properties of grade X21Cr13

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)
986 (≥) 489 (≥) 31 42 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical properties of grade X21Cr13

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
328 (≥) 524 (≥) 43 41 32 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
286 669 143

Equivalent Products

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