Techalloy 630
Techalloy 630 is a precipitation hardening stainless steel used for
welding materials of similar chemical composition such as 17-4
and 17-7. Can be used in the as welded condition or in the heat
treated condition to obtain higher strength. Mechanical properties
of this alloy are greatly influenced by the heat treatment.
Typical Chemical Composition
C Mn Si Cr Mo Ni Nb N P FN
(WRC)
S Cu
.03 .54 .43 16.49 .2 4.78 .22 .021 .017 3.6
Typical Mechanical Properties
Tensile Strength 150,000 PSI 1030 MPA
Yield Strength 135,000 PSI 930 MPA
Elongation 10%
Welding Parameters
Standard Packages:
Shielding Gas Flow Diameter Voltage Amperage
Mig Welding 98/99% Argon +
2/1% Oxygen
97% Argon + 3%
CO2
30 to 50 CFH .035” (0.9mm)
.045” (1.14mm)
.062” (1.6mm))
26 to 29
28 TO 32
29 TO 33
160/210
180/250
200/280
Tig Welding Argon
Sub Arc Welding Suitable flux may be
used
3/32” (2.5mm)
1/8” (3.14mm)
5/32” (4.0mm)
28 to 33
29 TO 32
30 TO 33
275/350
350/450
400/550
Baltimore, MD, USA (410) 633-9300
