High quality special steel supplier.Old rev.
  • Certified Company

    DNV&ABS
  • Certified Company

    ISO 9001:2008
  • R&D Production

    In China

309S


309S material is YB A 213/A 213M (2011) Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes YB A 240/A 240M (2012) Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications YB A 249/A 249M (2010) Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes YB A 276 (2010) Stainless Steel Bars and Shapes YB A 312/A 312M (2012) Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes YB A 314 (2008) Stainless Steel Billets and Bars for Forging YB A 358/A 358M (2008) Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications YB A 409/A 409M (2009) Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service YB A 473 (2009) Stainless Steel Forgings YB A 478 (2008) Chromium-Nickel Stainless Steel Weaving and Knitting Wire YB A 479/A 479M (2011) Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels YB A 511/A 511M (2012) Seamless Stainless Steel Mechanical Tubing YB A 554 (2011) Welded Stainless Steel Mechanical Tubing YB A 580/A 580M (2012) Stainless Steel Wire YB A 813/A 813M (2009) Single- or Double-Welded Austenitic Stainless Steel Pipe YB A 814/A 814M (2008) Cold-Worked Welded Austenitic Stainless Steel Pipe YB A 943/A 943M (2009) Spray-Formed Seamless Austenitic Stainless Steel Pipes YB A 959 (2011) Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels YB SAE J 405 (1998) Chemical compositions of SAE wrought stainless steels YB SAE J 467 (1968) Special Purpose Alloys ("Superalloys") Chemical compositions of SAE wrought stainless steels.

Chemical composition of 309S, 309S mechanical properties, 309S datasheet, 309S equivalent grade, Heat treatment and temperature process of 309S.


309S property sheet

309S Spec.

YB A 213/A 213M (2011)
Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
YB A 240/A 240M (2012)
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
YB A 249/A 249M (2010)
Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
YB A 276 (2010)
Stainless Steel Bars and Shapes
YB A 312/A 312M (2012)
Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
YB A 314 (2008)
Stainless Steel Billets and Bars for Forging
YB A 358/A 358M (2008)
Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications
YB A 409/A 409M (2009)
Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service
YB A 473 (2009)
Stainless Steel Forgings
YB A 478 (2008)
Chromium-Nickel Stainless Steel Weaving and Knitting Wire
YB A 479/A 479M (2011)
Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
YB A 511/A 511M (2012)
Seamless Stainless Steel Mechanical Tubing
YB A 554 (2011)
Welded Stainless Steel Mechanical Tubing
YB A 580/A 580M (2012)
Stainless Steel Wire
YB A 813/A 813M (2009)
Single- or Double-Welded Austenitic Stainless Steel Pipe
YB A 814/A 814M (2008)
Cold-Worked Welded Austenitic Stainless Steel Pipe
YB A 943/A 943M (2009)
Spray-Formed Seamless Austenitic Stainless Steel Pipes
YB A 959 (2011)
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
YB SAE J 405 (1998)
Chemical compositions of SAE wrought stainless steels
YB SAE J 467 (1968)
Special Purpose Alloys ("Superalloys")

Chemical Composition of 309S

C: Max 0.08
Si: Max 1.00
Mn: Max 2.00
P: Max 0.045
S: Max 0.03
Cr: 22.0 24.0
Ni: 12.0 15.0

Mechanical Properties of 309S

Rp0.2 (MPa) 416 (≥)
Rm (MPa) 617 (≥)
AKV (J) 41
A (%) 11
Z (%) 22
Hardness HBW 334

309S shape and dimensions

309S Round bar: 1mm-800mm
309S Square bar: 10mm * 10mm-600mm *600mm
309S Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
309S Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
309S Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
309S Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

Our Materials