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303 plus X

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S30300 XM-5
#303 #

Description

USA YB J 405, 303 plus X Specialsteel J 405 Chemical compositions of SAE wrought stainless steels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 303 plus X
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 303 plus X Austenite YB USA J 405 Chemical compositions of SAE wrought stainless steels

Chemical composition(mass fraction)(wt.%) of the 303 plus X

C Si Mn P S Cr Ni Mo
≤0.15 ≤1.00 2.50 -4.50 ≤0.2 0.15 - ≥ 17.0 -19.0 7.00 -10.0 ≤0.60

Mechanical Properties of steel grade 303 plus X

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)
327 (≥) 934 (≥) 44 31 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade 303 plus X

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
23 - -     0.21 -  
465 649 - 21.3 133   -  
444 - 42 22.2   233 224

Heat Treatment of steel grade 303 plus X

Heat treated : 1348°C - 1267°C

Technological Curves of steel grade 303 plus X

Cross Reference Table (Equivalent Grade) of 303 plus X

Grade Standard Country Application
M303
1.4303
1.4303
1.2303
303
S30300
303Se
S30323
S30345
303MA
S30345
S30310
S43035
S43036
S43035
303Al Mod
S43035
303
S30300
S30310

Relevant standard of 303 plus X

J 405 标准内容 J-405.pdf
S30300 XM-5
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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