SE-625 (N06625)

SECORP designation (UNS NO.)

Good strength and toughness to 1800°F (980°C). Resists general corrosion, pitting, crevice corrosion. Excellent resistance to phosphoric acid solutions.

Major Applications

 

Chemical and pollution control equipment piping, valves, marine equipment. Pump Shafts for high horsepower pumps and valves lining for high pressure H²S service.

NOMINAL CHEMICAL COMPOSITION (%):

Cr Ni Fe Mo Cu C Others
22.0 Bal 3.0 9.0 - 0.04 Ti-0.25
Al-0.25
B-0.0003
Ta+Cb-3.75

TYPICAL MECHANICAL PROPERTIES:

METALLURGICAL CONDITION TENSILE STRENGTH Ksi (MPa) YIELD STRENGTH 2% OFFSET Ksi (MPa) ELONGATION (%) HARDNESS
ANNEALED 125 (860) 65 (448) 50 78 RB
COLD DRAWN 225 (1550) 205 (1410) 8 42 RC

SPECIFICATION

SHEET/PLATE BARS
ASTM B443 ASTM B446
AMS 5599 AMS 5666