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KS STS321TF

STS321TF


STS321TF material is KS D 3587 (1991) Steel tubes for fired heater Steel tubes for fired heater.

Chemical composition of STS321TF, STS321TF mechanical properties, STS321TF datasheet, STS321TF equivalent grade, Heat treatment and temperature process of STS321TF.


STS321TF property sheet

STS321TF Spec.

KS D 3587 (1991)
Steel tubes for fired heater

Related Materials

STS321
STS321TKA
STS321HTB
STS321HTF
STS321TB
STS321TF
STS321TPY
STS321FB
STS321HFB
STS321HTP
STS321TP

Chemical Composition of STS321TF

C: Max 0.08
Si: Max 1.00
Mn: Max 2.00
P: Max 0.045
S: Max 0.030
Cr: 17.00 19.00
Ni: 9.00 13.00
Mo: Max Min
N: Max Min
Ti: 5×C％ Min

Mechanical Properties of STS321TF

Rp0.2 (MPa) 665 (≥)
Rm (MPa) 156 (≥)
AKV (J) 12
A (%) 14
Z (%) 12
Hardness HBW 222

STS321TF shape and dimensions

STS321TF Round bar: 1mm-800mm
STS321TF Square bar: 10mm * 10mm-600mm *600mm
STS321TF Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
STS321TF Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
STS321TF Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
STS321TF Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

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