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Description

1.2888 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: 1.2888

Chemical composition(mass fraction)(wt.%) of the 1.2888

 

 

Si 
Mn 
 P
 S
Cr   Ni  Mo  Other
 0.17-0.23  0.15-0.35  0.40-0.60  0.035  0.035 9.00-10.0     1.80-2.20  W  5.00-6.00
Co  9.50-10.5

Mechanical Properties of steel grade 1.2888

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
162 (≥) 864 (≥) 32 11 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade 1.2888

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
23 - -     0.34 -  
544 194 - 12.3 233   -  
971 - 31 42.2   433 441

Heat Treatment of steel grade 1.2888

Heat treated : 1856°C - 1338°C

Technological Curves of steel grade 1.2888

Cross Reference Table (Equivalent Grade) of 1.2888

Grade Standard Country Application
1.2888 DIN Germany Hot working alloy tool steel

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