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Description

Germany WL WL 1.6604 Beiblatt 1 (1982), WL 1.6604-1 (1982), WL 1.6604-2 (1982), 1.6604 Specialsteel Special steels for the aerospace industry - Heat-treatable steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 1.6604
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 1.6604 WL Germany Special steels for the aerospace industry - Heat-treatable steel

Chemical composition(mass fraction)(wt.%) of the 1.6604

C Si Mn P S Cr Mo Ni
0.26 -0.34 0.15 -0.40 0.30 -0.60 ≤0.025 ≤0.025 1.80 -2.30 0.30 -0.65 1.80 -2.30

Mechanical Properties of steel grade 1.6604

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)
454 (≥) 382 (≥) 22 21 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical Properties of steel grade 1.6604

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
33 - -     0.21 -  
761 154 - 12.3 113   -  
612 - 34 42.2   434 114

Heat Treatment of steel grade 1.6604

Heat treated : 1395°C - 1891°C

Technological Curves of steel grade 1.6604

Relevant standard of 1.6604

WL 1.6604 Beiblatt 1 (1982) Heat-treatable chromium-nickel-molybdenum steel with about 0.3C-2Cr-2Ni- 0.4Mo; rods, forgings and pipes WL-1-6604-Beiblatt-1-(1982).pdf
WL 1.6604-1 (1982) Heat-treatable chromium-nickel-molybdenum steel with about 0.3 C - 2 Cr- 2 Ni - 0.4 Mo; rods and forgings WL-1-6604-1-(1982).pdf
WL 1.6604-2 (1982) Heat-treatable chromium-nickel-molybdenum steel with about 0.3C-2Cr-2Ni-0.4Mo; pipes WL-1-6604-2-(1982).pdf

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