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347F20


347F20 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 AFNOR NF A 35-578 Iron and steel. Stainless steel for high temperature application Steel tubes. Seamless austenitic steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical conditions of delivery.

Chemical composition of 347F20, 347F20 mechanical properties, 347F20 datasheet, 347F20 equivalent grade, Heat treatment and temperature process of 347F20.


347F20 property sheet

347F20 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
AFNOR NF A 35-578
Iron and steel. Stainless steel for high temperature application

Chemical Composition of 347F20

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
Nb+Ta: 8×C 1.00

Mechanical Properties of 347F20

Rp0.2 (MPa) 523 (≥)
Rm (MPa) 783 (≥)
AKV (J) 33
A (%) 13
Z (%) 11
Hardness HBW 422

347F20 shape and dimensions

347F20 Round bar: 1mm-800mm
347F20 Square bar: 10mm * 10mm-600mm *600mm
347F20 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
347F20 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
347F20 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
347F20 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes