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STS321

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STS317J5L STS347
#STS321

Description

Korea KS STS321 Austenitic Steel and STS321 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Heat-Resistant Steel: STS321
Category Type Steel Grade Standard Country Application
Steel GradesHeat-Resistant Steel STS321 KS Korea Austenitic Steel
STS420F
STS420F2
STS431
STS440A
STS440B
STS440C
STS440F
STS630
STS631
STS317J5L

Chemical composition(mass fraction)(wt.%) of the STS321

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Ti(%)
Max 0.08 Max 1.00 Max 2.00 Max 0.04 Max 0.03 17.O-19.O 9.OO-13.O 5×C％

Mechanical Properties of steel grade STS321

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)
593 (≥) 811 (≥) 33 42 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical Properties of steel grade STS321

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 - -     0.33 -  
453 731 - 43.3 212   -  
563 - 23 44.2   121 131

Heat Treatment of steel grade STS321

Heat treated : 1384°C - 1278°C

Technological Curves of steel grade STS321

Cross Reference Table (Equivalent Grade) of STS321

Grade Standard Country Application
STS321 KS Korea Austenitic Steel
STS321 KS Korea Austenitic Steel
STS321TKA KS Korea KS standard mechanical and structure with stainless steel pipe(KS D3536-1992)
STS317J5L STS347
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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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