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721 (X 2 CrNiN 18 10)

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Finland SFS 721(X2CrNiN1810) Austenitic stainless steel 721. X 2 CrNiN 18 10 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 721(X2CrNiN1810) / 721 (X 2 CrNiN 18 10)
Category Grade Standard Region/Area Standard Content
Metals 721 (X 2 CrNiN 18 10) SFS 721 Finland Austenitic stainless steel 721. X 2 CrNiN 18 10

Chemical composition(mass fraction)(wt.%) of the 721 (X 2 CrNiN 18 10)

Element Min Max Similar

Mechanical Properties of steel grade 721 (X 2 CrNiN 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)
123 (≥) 459 (≥) 22 44 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade 721 (X 2 CrNiN 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
34 - -     0.11 -  
575 653 - 14.3 422   -  
422 - 31 23.2   144 421

Heat Treatment of steel grade 721 (X 2 CrNiN 18 10)

Heat treated : 1879°C - 1382°C

Technological Curves of steel grade 721 (X 2 CrNiN 18 10)

Cross Reference Table (Equivalent Grade) of 721 (X 2 CrNiN 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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