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CNS 321Application:CNS standard stainless steel austenite size
CategoryTypeSteel gradeStandardCountry
Grades Special Alloy CNS 321CNSChina

Chemical composition%of the ladle analysis of gradeCNS 321

C(%)Si(%)Mn(%)P(%)S(%)Cr(%)Ni(%)Ti(%)
Max 0.08Max 1.00Max 2.00Max 0.045Max 0.03017.00-19.009.00-13.00Max 5xC%
CNS standard stainless steel austenite size
Mechanical properties of gradeCNS 321
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)
846(≥)739(≥)231221Solution and Aging,Annealing,Ausaging,Q+T,etc444
Physical properties of gradeCNS 321
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
594(≥)539(≥)312232Solution and Aging,Annealing,Ausaging,Q+T,etc421
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0)N/mm2
Creep rupture strength
(10000h)
(Rp1,0)N/mm2
151229289
CNS 321Range 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
Cross Reference Table(Equivalent Grade)
GradeStandardCountryApplication
A 240 S32100CNSChina
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 249 S32100CNSChina
Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
A 269 S32100CNSChina
Seamless and Welded Austenitic Stainless Steel Tubing for General Service
A 276 S32100CNSChina
Stainless Steel Bars and Shapes
A 313 S32100CNSChina
Stainless Steel Spring Wire
A 314 S32100CNSChina
Stainless Steel Billets and Bars for Forging
A 358 S32100CNSChina
Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications
A 409 S32100CNSChina
Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service
A 473 S32100CNSChina
Stainless Steel Forgings
A 580 S32100CNSChina
Stainless Steel Wire
A 632 S32100CNSChina
Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service
A 778 S32100CNSChina
Welded, Unannealed Austenitic Stainless Steel Tubular Products
A 813 S32100CNSChina
Single- or Double-Welded Austenitic Stainless Steel Pipe
A 965 S32100CNSChina
Steel Forgings, Austenitic, for Pressure and High Temperature Parts
A814 S32100CNSChina
Cold-Worked Welded Austenitic Stainless Steel Pipe
F738 Class A2-50 S32100CNSChina
Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs
F738 Class A2-70 S32100CNSChina
Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs
F738 Class A2-80 S32100CNSChina
Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs
F836 Class A2-50 S32100CNSChina
Standard Specification for Style 1 Stainless Steel Metric Nuts (Metric)
F836 Class A2-70 S32100CNSChina
Standard Specification for Style 1 Stainless Steel Metric Nuts (Metric)

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