SE-C22 (NO6022)

SECORP designation (UNS NO.)

Outstanding resistant to localized corrosion, oxidizing and reducing chemicals. Superior to most NICRMO Alloys. High chromium content.

Major Applications

 

Equipment or parts exposed to hot sulphuric and phosphoric acids, complex chemical mixtures and acetic acid.

NOMINAL CHEMICAL COMPOSITION (%):

Cr Ni Fe Mo Cu C Others
21.5 Bal 5.5 13.5 - 0.01 V-0.35
Si-0.08
Co-2.5
W-4.0
Mn-1.0

TYPICAL MECHANICAL PROPERTIES:

METALLURGICAL CONDITION TENSILE STRENGTH Ksi (MPa) YIELD STRENGTH 2% OFFSET Ksi (MPa) ELONGATION (%) HARDNESS
ANNEALED 103 (710) 48 (331) 60 92 RB
COLD WORKED 195 (1345) 162 (1117) 18 40 RC

CORROSION RESISTANCE:

H2SO4 HIC H3PO4 HNO3 ORGANIC ACIDS ALKALINES SEA WATER CHLORIDE CRACKING
G G G G G G G NR

SPECIFICATION

SHEET/STRIP ASTM AMS BARS ASTM AMS
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