SE-23 (NO8020)

SECORP designation (UNS NO.)

A high-nickel stainless steel exhibiting excellent resistance to stress corrosion cracking in 20-40% sulfuric acid as well as other media. Used extensively in the manufacture of synthetic rubber and gasoline.

Major Applications

 

Chemical process pumps, valve stems and piping, pickling equipment. Pulp mill bleaching equipment.

NOMINAL CHEMICAL COMPOSITION (%):

Cr Ni Fe Mo Cu C Others
20.0 34.0 19.5 2.5 3.5 0.02 Mn-1.0

TYPICAL MECHANICAL PROPERTIES:

METALLURGICAL CONDITION TENSILE STRENGTH Ksi (MPa) YIELD STRENGTH 2% OFFSET Ksi (MPa) ELONGATION (%) HARDNESS
ANNEALED 100 (690) 45 (310) 39 80 RB

CORROSION RESISTANCE:

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

SPECIFICATION

SHEET/STRIP ASTM AMS BARS ASTM AMS
B463 B462