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SUS 347 HTF


SUS 347 HTF material is JIS G 3467 (2011) Steel tubes for fired heater Steel tubes for fired heater.

Chemical composition of SUS 347 HTF, SUS 347 HTF mechanical properties, SUS 347 HTF datasheet, SUS 347 HTF equivalent grade, Heat treatment and temperature process of SUS 347 HTF.


SUS 347 HTF property sheet

SUS 347 HTF Spec.

JIS G 3467 (2011)
Steel tubes for fired heater

Chemical Composition of SUS 347 HTF

C: Max 0.08
Si: Max 1.00
Mn: Max 2.00
P: Max 0.045
S: Max 0.03
Cr: 17.00 19.00
Ni: 9.00 13.00
Mo: Max Min
N: Max Min
Nb: 10×C% Min

Mechanical Properties of SUS 347 HTF

Rp0.2 (MPa) 798 (≥)
Rm (MPa) 128 (≥)
AKV (J) 44
A (%) 41
Z (%) 31
Hardness HBW 124

SUS 347 HTF shape and dimensions

SUS 347 HTF Round bar: 1mm-800mm
SUS 347 HTF Square bar: 10mm * 10mm-600mm *600mm
SUS 347 HTF Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
SUS 347 HTF Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
SUS 347 HTF Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
SUS 347 HTF Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes