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KS STS321HTF

STS321HTF


STS321HTF material is KS D 3587 (1991) Steel tubes for fired heater Steel tubes for fired heater.

Chemical composition of STS321HTF, STS321HTF mechanical properties, STS321HTF datasheet, STS321HTF equivalent grade, Heat treatment and temperature process of STS321HTF.


STS321HTF property sheet

STS321HTF 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 STS321HTF

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 STS321HTF

Rp0.2 (MPa) 137 (≥)
Rm (MPa) 775 (≥)
AKV (J) 11
A (%) 24
Z (%) 31
Hardness HBW 224

STS321HTF shape and dimensions

STS321HTF Round bar: 1mm-800mm
STS321HTF Square bar: 10mm * 10mm-600mm *600mm
STS321HTF Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
STS321HTF Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
STS321HTF Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
STS321HTF Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

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