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303

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S30260 A 314 303
#303

Description

USA YB A 314 (2008) , A 473 (2009) , A 581/A 581M (2009) , A 582/A 582M (2012) , A 895 (2009) , A 959 (2011) , 303 Specialsteel Stainless Steel Billets and Bars for Forging and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 303
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 303 Austenite YB USA Stainless Steel Billets and Bars for Forging

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

C Si Mn P S Cr Ni Mo
≤0.15 ≤1.00 ≤2.00 ≤0.2 0.15 - ≥ 17.0 -19.0 8.00 -10.0 ≤0.60

Mechanical Properties of steel grade 303

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)
515 (≥) 876 (≥) 41 33 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 212

Physical Properties of steel grade 303

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
43 - -     0.21 -  
315 959 - 34.3 413   -  
512 - 14 12.2   133 113

Heat Treatment of steel grade 303

Heat treated : 1564°C - 1696°C

Technological Curves of steel grade 303

Cross Reference Table (Equivalent Grade) of 303

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

A 314 (2008) Stainless Steel Billets and Bars for Forging A-314--(2008)--.pdf
A 473 (2009) Stainless Steel Forgings A-473--(2009)--.pdf
A 581/A 581M (2009) Free-Machining Stainless Steel Wire and Wire Rods A-581-A-581M--(2009)-.pdf
A 582/A 582M (2012) Free-Machining Stainless Steel Bars A-582-A-582M--(2012)--.pdf
A 895 (2009) Free-Machining Stainless Steel Plate, Sheet, and Strip A-895--(2009)-.pdf
A 959 (2011) Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels A-959--(2011)-.pdf
S30260 A 314 303
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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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