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

    DNV&ABS
  • Certified Company

    ISO 9001:2008
  • R&D Production

    In China

STS317LTB


STS317LTB 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 STS317LTB, STS317LTB mechanical properties, STS317LTB datasheet, STS317LTB equivalent grade, Heat treatment and temperature process of STS317LTB.


STS317LTB property sheet

STS317LTB Spec.

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

Chemical Composition of STS317LTB

C: Max 0.03
Si: Max 1.00
Mn: Max 2.00
P: Max 0.045
S: Max 0.030
Cr: 18.00 20.00
Ni: 11.00 15.00
Mo: 3.00 4.00
N: 0.10 0.22

Mechanical Properties of STS317LTB

Rp0.2 (MPa) 147 (≥)
Rm (MPa) 947 (≥)
AKV (J) 23
A (%) 31
Z (%) 13
Hardness HBW 244

STS317LTB shape and dimensions

STS317LTB Round bar: 1mm-800mm
STS317LTB Square bar: 10mm * 10mm-600mm *600mm
STS317LTB Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
STS317LTB Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
STS317LTB Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
STS317LTB Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes