1.2129 Tool Die Steels

1.2129 - Specification & Application

Alloyed CrMn steel

Chemical composition(wt.%) of 1.2129 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 1.90 2.10
Si 0.15 0.30
Mn 0.80 1.10
P - 0.035
S - 0.035
Cr 1.90 2.20
Mo - -
V - -

1.2129 - Detail

Alloyed CrMn steel

Mechanical properties of grade 1.2129

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)
743 (≥) 961 (≥) 33 34 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical properties of grade 1.2129

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
258 (≥) 739 (≥) 11 34 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 213
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
729 397 743

Equivalent Grade

Equivalent Products

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