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X 7 CrNiNb 18-10

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EU EN X7CrNiNb18-10 承压钢锻件 - 第5部分：马氏体，奥氏体和奥氏体-铁素体不锈钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: X7CrNiNb18-10 / X 7 CrNiNb 18-10
Category Grade Standard Region/Area Standard Content
Metals X 7 CrNiNb 18-10 EN 10222-5 EU 承压钢锻件 - 第5部分：马氏体，奥氏体和奥氏体-铁素体不锈钢

Chemical composition(mass fraction)(wt.%) of the X 7 CrNiNb 18-10

Element Min Max Similar
C 0.0400 0.1000 -
Mn - 2.0000 -
P - 0.0400 -
S - 0.0150 -
Si - 1.0000 -
Ni 9.0000 12.0000 -
Cr 17.0000 19.0000 -
N - 0.1000 -
Nb - 1.2000 -
Si - 1.0000 -
S - 0.0150 -
P - 0.0450 -
Ni 9.0000 12.0000 -
Nb - 1.2000 -
Mn - 2.0000 -
Cr 17.0000 19.0000 -
C 0.0400 0.1000 -
Si - 1.0000 -
S - 0.0150 -
P - 0.0450 -
Ni 9.0000 12.0000 -
Nb - 1.2000 -
Mn - 2.0000 -
Cr 17.0000 19.0000 -
C 0.0400 0.1000 -

Mechanical Properties of steel grade X 7 CrNiNb 18-10

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)
782 (≥) 662 (≥) 33 34 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical Properties of steel grade X 7 CrNiNb 18-10

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
13 - -     0.12 -  
268 579 - 12.3 441   -  
637 - 43 21.2   431 143

Heat Treatment of steel grade X 7 CrNiNb 18-10

Heat treated : 1735°C - 1669°C

Technological Curves of steel grade X 7 CrNiNb 18-10

Cross Reference Table (Equivalent Grade) of X 7 CrNiNb 18-10

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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