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France AFNOR NF D Medical and surgical equipment. Implants for surgery. Metallic materials. Wrought stainless steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: D / D
Category Grade Standard Region/Area Standard Content
Metals D NF S 90-401 France Medical and surgical equipment. Implants for surgery. Metallic materials. Wrought stainless steel

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

Element Min Max Similar
Si - 1.0000 -
S - 0.0100 -
P - 0.0250 -
Ni 13.0000 15.0000 -
N - 0.1000 -
Mo 2.2500 3.5000 -
Mn - 2.0000 -
Cu - 0.5000 -
Cr 17.0000 19.0000 -
C - 0.0300 -

Mechanical Properties of steel grade D

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)
727 (≥) 212 (≥) 12 44 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade D

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
21 - -     0.22 -  
182 935 - 13.3 141   -  
799 - 23 32.2   212 442

Heat Treatment of steel grade D

Heat treated : 1441°C - 1562°C

Technological Curves of steel grade D

Cross Reference Table (Equivalent Grade) of D

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