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Austenitic SS 254

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Austenitic SS 254

Stainless steel grade 254 SMO™ is a very high end austenitic stainless steel. It is designed with a combination of impact toughness resistance to chloride stress corrosion cracking, and pitting and crevice corrosion with strength that is twice that of the stainless steel 300 series.

For certain applications, grade 254 SMO™ has been reported to be a cost-effective substitute for high nickel and titanium alloys. It is known to possess excellent workability as well.

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Description

STAINLESS STEEL F44 / S31254 / 1.4547

CORRESPONDING STANDARDS:
EN/DIN
  • 1.4547 EN10088-3
  • X1CrNiMoN20-18-7
  • X1CrNiMoCuN20-18-7
AFNOR
  • Z1 CNDU 20.18.06 AZ
UNS
  • S31254
AISI
  • F44 (A182 / A276 / A479)
SS
  • 2378
NORSOK
  • M630-MDS R17 BAR
  • M630-MDS R14 FORGINGSM630-MDS R14 FORGINGS
  • M630-MDS R15 PLATE
  • M650 Qualification of Manufacturer

Stainless steel grade 254 SMO™ is a very high end austenitic stainless steel. It is designed with a combination of impact toughness resistance to chloride stress corrosion cracking, and pitting and crevice corrosion with strength that is twice that of the stainless steel 300 series.

For certain applications, grade 254 SMO™ has been reported to be a cost-effective substitute for high nickel and titanium alloys. It is known to possess excellent workability as well.

Availability : SMO 254 is available as round / flat / sheet / hexagonal / plate/ square / coil / pipe & fittings.

Chemical Composition

The chemical composition of stainless steel grade 254 SMO™ is outlined in the following table.

ELEMENT CONTENT (%)
Iron, Fe 55.69
Chromium, Cr 20
Nickel, Ni 18
Molybdenum, Mo 6.1
Nitrogen, N 0.20
Carbon, C 0.010

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