Filler metal ALLOY 630 is a precipitation hardening stainless steel used for welding of materials of similar chemical composition.
ALLOY 630 is primarily designed for welding ASTM A-564, type 630 (17 chromium, 4 nickel), and precipitation hardenable steel.
This wire offers the combined characteristics of a strong, corrosion resistant, easily machinable weld metal.
Depending on the weld dimensions and applications, Filler metal ALLOY 630 may be used in the as welded, welded plus precipitation hardened, or welded plus solution treated plus precipitation hardened condition.
Mechanical properties of this alloy are greatly influenced by the heat treatment.
Available in diam.: 2.0 - 2.4 - 3.2 - 4.0 mm; on spools of 25 kgs:
(This item is subject to Industry Alloy Surcharges)
AWS Chemical Composition
C 0.05, Cr 16.00/16.75, Ni 4.5/5.0, Mn 0.25/0.75, Si 0.75, Cu 3.25/4.00, Mo 0.75, Nb+Ta 0.15/0.30, S 0.03, P 0.03
NOTE: Mechanical properties listed above reflect utilization of a post-weld heat treatment between 1025°C (1875°F) and 1050°C (1925°F) for one hour, followed by precipitation hardening between 615°C (1135°F) and 630°C (1165°F) for four hours.