1.2880 Tool Die Steels

1.2880 - Specification & Application

High alloyed CrCoMo steel

Chemical composition(wt.%) of 1.2880 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 1.55 1.75
Si 0.25 0.40
Mn 0.20 0.40
P - 0.035
S - 0.035
Cr 11.00 12.00
Mo 0.50 0.60
V - -
Co 1.20 1.40

1.2880 - Detail

High alloyed CrCoMo steel

Mechanical properties of grade 1.2880

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)
668 (≥) 133 (≥) 13 22 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical properties of grade 1.2880

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
557 (≥) 881 (≥) 21 13 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 222
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
121 722 274

Equivalent Grade

Equivalent Products

We can customize the production of 1.2880 grade, contact us for the best solution.
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