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Description

1.3255 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: 1.3255
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel 1.3255
1.3245
HS7-4-2-5
S7-4-2-5
1.3246
1.3247
S2-9-10-8
HS2-9-1-8
S 2-9-2-8
HS2-9-2-8
1.3249

Chemical composition(mass fraction)(wt.%) of the 1.3255

 

 

 

Si 
Mn 
 P
 S
Cr   Ni  Mo  Other
0.75-0.83 0.45   0.40  0.030  0.030  3.80-4.50    0.50-0.80  W 17.5-18.5  V  1.40-1.70
Co 4.50-5.00

Mechanical Properties of steel grade 1.3255

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)
897 (≥) 637 (≥) 22 31 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade 1.3255

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
13 - -     0.24 -  
967 474 - 22.3 113   -  
581 - 14 32.2   321 342

Heat Treatment of steel grade 1.3255

Heat treated : 1258°C - 1844°C

Technological Curves of steel grade 1.3255

Cross Reference Table (Equivalent Grade) of 1.3255

Grade Standard Country Application
1.3255 DIN Germany High-speed tool steel

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