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KS STS309STB

STS309STB


STS309STB material is KS D 3577 (2007) Stainless steel for boiler and heat exchanger tubes Stainless steel for boiler and heat exchanger tubes.

Chemical composition of STS309STB, STS309STB mechanical properties, STS309STB datasheet, STS309STB equivalent grade, Heat treatment and temperature process of STS309STB.


STS309STB property sheet

STS309STB Spec.

KS D 3577 (2007)
Stainless steel for boiler and heat exchanger tubes

Related Materials

STS309S
STS309STP
STS309STPY
STS309STB

Chemical Composition of STS309STB

C: Max 0.08
Si: Max 1.00
Mn: Max 2.00
P: Max 0.045
S: Max 0.030
Cr: 22.00 24.00
Ni: 12.00 15.00
Mo: Max Min
N: Max Min

Mechanical Properties of STS309STB

Rp0.2 (MPa) 838 (≥)
Rm (MPa) 947 (≥)
AKV (J) 12
A (%) 32
Z (%) 44
Hardness HBW 244

STS309STB shape and dimensions

STS309STB Round bar: 1mm-800mm
STS309STB Square bar: 10mm * 10mm-600mm *600mm
STS309STB Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
STS309STB Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
STS309STB Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
STS309STB Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

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