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Description

Germany DIN 1.6748 and 1.6748 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: 1.6748
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy 1.6748 DIN Germany
GS-24CrNiMo3 2 5
1.6552
1.6570
GS-30NiCrMo8 5
1.6582
GS-34CrNiMo6
GS-33NiCrMo7 4 4
1.6740
GS-38NiCrMo8 4 4
1.6741

Chemical composition(mass fraction)(wt.%) of the 1.6748

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%)
0.37-0.44 0.30-0.50 0.60-1.00 Max 0.025 Max 0.025 1.10-1.50 1.30-1.70 0.50-0.70

Mechanical Properties of steel grade 1.6748

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)
299 (≥) 649 (≥) 12 23 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical Properties of steel grade 1.6748

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
11 - -     0.21 -  
899 886 - 33.3 311   -  
273 - 23 41.2   424 313

Heat Treatment of steel grade 1.6748

Heat treated : 1181°C - 1173°C

Technological Curves of steel grade 1.6748

Cross Reference Table (Equivalent Grade) of 1.6748

Grade Standard Country Application
1.6748 DIN Germany

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