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X 4 NiCrMoCuNb 20-18-2

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Germany SEW X4NiCrMoCuNb20-18-2 Stainless steels for rolled and forged products and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: X4NiCrMoCuNb20-18-2 / X 4 NiCrMoCuNb 20-18-2
Category Grade Standard Region/Area Standard Content
Metals X 4 NiCrMoCuNb 20-18-2 SEW 400 Germany Stainless steels for rolled and forged products

Chemical composition(mass fraction)(wt.%) of the X 4 NiCrMoCuNb 20-18-2

Element Min Max Similar
Si - 1.0000 -
S - 0.0150 -
P - 0.0450 -
Ni 19.0000 21.0000 -
Nb - - -
Mo 2.0000 2.5000 -
Mn - 2.0000 -
Cu 1.8000 2.2000 -
Cr 16.5000 18.5000 -
C - 0.0500 -

Mechanical Properties of steel grade X 4 NiCrMoCuNb 20-18-2

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)
444 (≥) 485 (≥) 32 32 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 211

Physical Properties of steel grade X 4 NiCrMoCuNb 20-18-2

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
34 - -     0.34 -  
194 685 - 42.3 243   -  
497 - 44 44.2   241 112

Heat Treatment of steel grade X 4 NiCrMoCuNb 20-18-2

Heat treated : 1533°C - 1956°C

Technological Curves of steel grade X 4 NiCrMoCuNb 20-18-2

Cross Reference Table (Equivalent Grade) of X 4 NiCrMoCuNb 20-18-2

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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Jiangyou Longhai Special Steel Co.,Ltd.

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