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Description

Germany DIN 1.2888 Hot working alloy tool steel and 1.2888 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: 1.2888
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy 1.2888 DIN Germany Hot working alloy tool steel
1.2782
X13NiCrSi36-16
1.2786
X23CrNi17
1.2787
X32CrMoCoV3-3-3
1.2885
X15CrMoCoV10-10-5
1.2886
X20CoCrWMo10-9

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

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Mo(%) Co(%)
0.17-0.23 0.15-0.35 0.40-0.60 Max 0.035 Max 0.035 9.00-10.00 1.80-2.20 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)
564 (≥) 242 (≥) 21 31 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

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
32 - -     0.14 -  
495 156 - 24.3 434   -  
367 - 21 23.2   233 241

Heat Treatment of steel grade 1.2888

Heat treated : 1838°C - 1256°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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