HASTELLOY® B-3® RTW™ Filler Metal

Product Description:

HASTELLOY® B-3® RTW™ filler metal is used for the gas metal and gas tungsten arc welding of B-3® alloy. The alloy has outstanding resistance to hydrochloric and sulfuric acids in the as-welded condition and excellent thermal stability. B-3® is a great candidate for overlay and cladding where resistance to hydrochloric and sulfuric acids is needed. The RTW™ filler metal finish on the spooled wire promotes smooth feeding through welding equipment and reduced tip wear in contact tips.


AWS A5.14 ERNiMo-10             UNS N10675
ASME-SFA-5.14 ERNiMo-10     Kennblatt 7615.02 (Spools)*
Kennblatt 7616.03
*Specify at time of order


Nickel: 65.0 min.
Molybdenum: 27.0-32.0
Cobalt: 3.0 max.
Manganese: 3.0 max.
Iron: 1.0-3.0
Chromium: 1.0-3.0
Tungsten: 3.0 max.


Carbon: 0.01 max.
Sulfur: 0.01 max.
Aluminum: 0.50 max.
Other: 0.50 max.
Titanium: 0.20 max.
Copper: 0.20 max.
Niobium + Tantalum: 0.20 max.


Vanadium: 0.20 max.
Silicon: 0.10 max.
Phosphorus: 0.03 max.

Minimal Mechanical Properties:

Tensile (psi) 110,000
Mpa 760
Elongation (%) -

Available Product Forms and Sizes:

Diameter in 0.030 0.031 0.035 0.039 0.045 0.047 0.062 0.078 0.093 *0.125 *0.156x 0.187x
Diameter mm 0.76 0.80 0.89 1.00 1.10 1.20 1.60 2.00 2.40 *3.20 *4.00x *4.70x

Filler metals are available in MIG spools, TIG cut lengths, reels, and coils from the above diameters.

*Size not available in MIG spools.

˟Size not available on reels.

Standard TIG straight lengths are available in 36” (914mm) lengths. Other lengths available upon request.