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CNS 309S Application:CNS standard stainless steel austenite size
Category Type Steel grade Standard Country
Grades Special Alloy CNS 309S CNS China

Chemical composition % of the ladle analysis of grade CNS 309S

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%)
Max 0.08 Max 1.00 Max 2.00 Max 0.045 Max 0.030 22.00-24.00 12.00-15.00
CNS standard stainless steel austenite size
Mechanical properties of grade CNS 309S
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 Condition Brinell hardness (HBW)
881 (≥) 816 (≥) 41 12 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 414
Physical properties of grade CNS 309S
Property Density
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
895 (≥) 645 (≥) 43 12 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 241
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
264 989 566
CNS 309S Range of products
Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
309S CNS China
Chemical compositions of SAE wrought stainless steels
309S CNS China
Chemical compositions of SAE wrought stainless steels
A 167 Type 309S CNS China
Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip
A 213 TP309S CNS China
Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
A 240 Type 309S CNS China
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 249 TP309S CNS China
Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
A 276 309S CNS China
Stainless Steel Bars and Shapes
A 312 TP309S CNS China
Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
A 314 309S CNS China
Stainless Steel Billets and Bars for Forging
A 358 309S CNS China
Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications
A 409 TP309S CNS China
Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service
A 473 309S CNS China
Stainless Steel Forgings
A 478 Type 309S CNS China
Chromium-Nickel Stainless Steel Weaving and Knitting Wire
A 479 309S CNS China
Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
A 511 MT309S CNS China
Seamless Stainless Steel Mechanical Tubing
A 554 MT 309S CNS China
Welded Stainless Steel Mechanical Tubing
A 580 Type 309S CNS China
Stainless Steel Wire
A 813 Grade TP 309S CNS China
Single- or Double-Welded Austenitic Stainless Steel Pipe
A 814 Grade TP 309S CNS China
Cold-Worked Welded Austenitic Stainless Steel Pipe
A 943 TP309S CNS China
Spray-Formed Seamless Austenitic Stainless Steel Pipes

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