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AFNOR 321F20

321F20


321F20 material is AFNOR NF A 49-214 Steel tubes. Seamless austenitic steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical conditions of delivery Steel tubes. Seamless austenitic steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical conditions of delivery.

Chemical composition of 321F20, 321F20 mechanical properties, 321F20 datasheet, 321F20 equivalent grade, Heat treatment and temperature process of 321F20.


321F20 property sheet

321F20 Spec.

AFNOR NF A 49-214
Steel tubes. Seamless austenitic steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical conditions of delivery

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Chemical Composition of 321F20

C: 0.04 0.08
Si: Max 1.00
Mn: Max 2.00
P: Max 0.040
S: Max 0.030
Cr: 17.00 19.00
Ni: 11.00 13.00
Mo: Max Min
B: 0.0015 0.0060
Ti: 4×C 0.60

Mechanical Properties of 321F20

Rp0.2 (MPa) 766 (≥)
Rm (MPa) 725 (≥)
AKV (J) 11
A (%) 23
Z (%) 12
Hardness HBW 231

321F20 shape and dimensions

321F20 Round bar: 1mm-800mm
321F20 Square bar: 10mm * 10mm-600mm *600mm
321F20 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
321F20 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
321F20 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
321F20 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

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