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SUS 321 TB


SUS 321 TB material is JIS G 3463 (2012) Stainless steel boiler and heat exchanger tubes Stainless steel boiler and heat exchanger tubes.

Chemical composition of SUS 321 TB, SUS 321 TB mechanical properties, SUS 321 TB datasheet, SUS 321 TB equivalent grade, Heat treatment and temperature process of SUS 321 TB.


SUS 321 TB property sheet

SUS 321 TB Spec.

JIS G 3463 (2012)
Stainless steel boiler and heat exchanger tubes

Chemical Composition of SUS 321 TB

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
Ti: 5×C% Min

Mechanical Properties of SUS 321 TB

Rp0.2 (MPa) 528 (≥)
Rm (MPa) 397 (≥)
AKV (J) 23
A (%) 12
Z (%) 31
Hardness HBW 432

SUS 321 TB shape and dimensions

SUS 321 TB Round bar: 1mm-800mm
SUS 321 TB Square bar: 10mm * 10mm-600mm *600mm
SUS 321 TB Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
SUS 321 TB Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
SUS 321 TB Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
SUS 321 TB Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes