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Description

France AFNOR NF EN 10088-1, NF EN 10269, NF EN 10302 (2002), 1.4938 Specialsteel Creep resisting steels, nickel and cobalt alloys and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 1.4938
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 1.4938 AFNOR France Creep resisting steels, nickel and cobalt alloys

Chemical composition(mass fraction)(wt.%) of the 1.4938

C Si Mn P S Cr Ni Mo V N
0.08 -0.15 ≤0.50 0.40 -0.90 ≤0.025 ≤0.015 11.00 -12.50 2.00 -3.00 1.50 -2.00 0.25 -0.40 0.020 -0.040

Mechanical Properties of steel grade 1.4938

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)
413 (≥) 777 (≥) 41 12 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 412

Physical Properties of steel grade 1.4938

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
12 - -     0.22 -  
618 924 - 42.3 321   -  
823 - 41 43.2   314 432

Heat Treatment of steel grade 1.4938

Heat treated : 1675°C - 1719°C

Technological Curves of steel grade 1.4938

Cross Reference Table (Equivalent Grade) of 1.4938

Relevant standard of 1.4938

NF EN 10088-1 Stainless steels - Part 1: List of stainless steels NF-EN-10088-1.pdf
NF EN 10269 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties NF-EN-10269.pdf
NF EN 10302 (2002) Creep resisting steels, nickel and cobalt alloys NF-EN-10302-(2002).pdf

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