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STS321TKAApplication:KS standard mechanical and structure with stainless steel pipe(KS D3536-1992)
CategoryTypeSteel gradeStandardCountry
Grades Special Alloy STS321TKAKSKorea

Chemical composition%of the ladle analysis of gradeSTS321TKA

C(%)Si(%)Mn(%)P(%)S(%)Cr(%)Ni(%)Mo(%)Ti(%)
Max 0.08Max 1.00Max 2.00Max 0.04Max 0.0317.0-19.09.00-13.02.00-3.00Min 5xC%
KS standard mechanical and structure with stainless steel pipe(KS D3536-1992)
Mechanical properties of gradeSTS321TKA
Proof strength
Rp0.2(MPa)
Tensile strength
Rm(MPa)
Impact energy
KV(J)
Elongation at fracture
A(%)
Reduction in cross section on fracture
Z(%)
As-Heat-Treated ConditionBrinell hardness(HBW)
969(≥)497(≥)332213Solution and Aging,Annealing,Ausaging,Q+T,etc432
Physical properties of gradeSTS321TKA
PropertyDensity
kg/dm3
Temperature T
°C/F
Specific heat
J/kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
499(≥)346(≥)414421Solution and Aging,Annealing,Ausaging,Q+T,etc313
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0)N/mm2
Creep rupture strength
(10000h)
(Rp1,0)N/mm2
989497937
STS321TKARange of products
Product typeProductsDimensionProcessesDeliver Status
Plates/SheetsPlates/Sheets0.08-200mm(T)*W*LForging,hot rolling and cold rollingAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Steel BarRound Bar,Flat Bar,Square BarΦ8-1200mm*LForging,hot rolling and cold rolling,CastBlack,Rough Turning,Shot Blasting,
Coil/StripSteel Coil/Steel Strip0.03-16.0x1200mmCold-Rolled&Hot-RolledAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Pipes/TubesSeamless Pipes/Tubes,Welded Pipes/TubesOD:6-219mm x WT:0.5-20.0mmHot extrusion,Cold Drawn,WeldedAnnealed,Solution and Aging,Q+T,ACID-WASHED

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