1.2884 Tool Die Steels

1.2884 - Specification & Application

High alloyed CrCoW steel

Chemical composition(wt.%) of 1.2884 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 2.00 2.25
Si 0.20 0.40
Mn 0.20 0.40
P - 0.035
S - 0.035
Cr 11.50 12.50
Mo 0.30 0.50
V - -
Co 0.80 1.10
W 0.60 0.80

1.2884 - Detail

High alloyed CrCoW steel

Mechanical properties of grade 1.2884

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)
512 (≥) 529 (≥) 14 34 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical properties of grade 1.2884

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
226 (≥) 816 (≥) 33 12 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 422
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
957 383 427

Equivalent Grade

Equivalent Products

We can customize the production of 1.2884 grade, contact us for the best solution.
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