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Heat-treatable Tool and Die Welding
Alloys
Weld Mold® 900 Series
Weld Mold® 919 (AC/DC) - A nickel/chrome/moly
alloy for welding wrought and cast AISI 4340 components
where the weld metal must be of the same composition as
the base metal.
Rc 42-46 as-welded, Rc 55-60 flame-hardened
Specification: AISI 4340
Available forms: E , FC , TIG
Polytensile® 920 (AC/DC) - A chrome/nickel/moly
alloy for joining 100,000-tensile steel. An excellent
buildup or joining material on wrought, cast and forged
AISI 8620 components. It is readily machinable and heat
treatment should be dictated by the 8620 procedures.
Uses include the joining of low-alloy steels, pipe and
pressure vessels.
25-30 Rc
Specification: AISI 8620
Available forms: E , FC , TIG , MIG
Weld Mold® 922 (AC/DC) - For welding
flame-hardening AISI 4130 steel. A chrome/moly alloy for
buildup or reclamation of dies, forgings and castings
and for joining thin sections of 4130 steel when
specific properties and chemistry must be maintained.
Pre and post heat treatment is recommended.
Rc 32-36 as-welded, flame-hardens to Rc 42-46
Specification: AISI 4130
Available forms: E , FC , TIG , MIG
Weld Mold® 923 (AC/DC) - A chrome/vanadium,
flame-hardenable alloy for buildup and repair of AISI
6150 steel with good resistance to abrasion and
compression. Primary applications are the repair and
reclamation of AISI 6150 forgings, castings and dies.
Rc 42-46 as-welded, flame-hardens to Rc 51-55
Specification: AISI 6150
Available forms: E , FC , TIG , MIG
Weld Mold® 925 (AC/DC) - A carbon/vanadium
alloy for welding AISI W-1 through W-5 water-hardening
tool steel. A titania-coated electrode or bare rod that
provides a fine-grained deposit for the most delicate
and exacting work. Used for the repair of cold-working
shears, trimmers, punches and dies.
R56-60 as-welded
Specification: AISI W-2
Available forms: E , TIG , MIG
Weld Mold® 927 (AC/DC) - A chrome/moly alloy
for buildup or reclamation of AISI 4140 steel dies,
forgings and castings and for joining thin sections of
4140 steel when specific properties and chemistry must
be maintained. Pre and post heat-treatment is
recommended.
Rc 38-40 as-welded, flame-hardens to Rc 50-52
Specification: AISI 4140
Available forms: E , FC
Weld Mold® 935 (AC/DC) - For welding AISI 0-1
through 0-6 oil hardening steel. Provides a deposit that
is hard as-welded, fine grained and completely
heat-treatable. Uses include the repair and reclamation
of blanking, forming and trim dies.
Rc 57-60
Specification: AISI 01
Available forms: E , FC , TIG , MIG
Weld Mold® 937 (AC/DC) - For welding AISI A-2
through A-6 and D-2 through D-5 air-hardening tool
steels and upgrading wear areas on lower alloys.
Deposits are hard as-welded, fine grained and completely
heat-treatable. Uses include the repair and reclamation
of extrusion, blanking, coining and forming dies.
Rc 56-58
Specification: AISI A-2
Available forms: E , FC , TIG , MIG
Weld Mold® 938 (AC/DC) - For the welding,
repair and reclamation of high-carbon, high-chromium
AISI D-2 air-hardening tool steels, preferably in the
annealed condition. Uses include the reclamation of
blanking, forming and drawing dies. Also for
cold-working punches, trimmers and slitting knives.
RC 38-42 as-welded, Rc 58-62 heat-treated
Specification: AISI D-2
Available forms: E , FC , TIG
Polyshock® 943-L (AC/DC) - For the repair and
reclamation of AISI S-Series shock-resisting tool steels
(especially AISI S-7). Particularly suited for
cold-working applications and for the composite
fabrication of blanking, trimmer, header and brake dies.
Rc 54-57
Specification: AISI S-7
Available forms: E , FC , TIG , MIG
Weld Mold® 954 (AC/DC) - A low-carbon
chrome/moly/tungsten machinable hot work alloy with very
good thermal fatigue resistance. Used to repair or
reclaim damaged and worn dies where heat checking due to
water cooling is a problem and where machining in the
as-welded condition is necessary. This alloy is
available in a softer version (Weld Mold® 953) and in a
slightly harder and more wear-resistant version (Weld
Mold® 954-N). Uses include the repair of upsetter,
press, hammer and insert forging dies. Also all AISI
H-Series tool steels, where as-welded machinability is
required.
Rc 38-42
Specification: NA
Available forms: E , FC , TIG , MIG
Weld Mold® 958 (AC/DC) - For the repair and
reclamation of AISI H-12 hot-work tool steel. A
chrome/moly/tungsten/vanadium alloy which resists wear,
shock, heat checking and erosion at high temperatures.
Excellent cold-working properties and uniform
heat-treatment response. Water spray coolants should be
avoided. This alloy is also available in a
titania-coated version for superior re-strike and AC
operation as Weld Mold® 957.
Rc 54-57
Specification: AISI H-12
Available forms: E , FC , TIG , MIG
Weld Mold® 959-L (AC/DC) - For the repair and
reclamation of AISI H-13 hot work tool steel. I t is a
tungsten-free 5% chrome/moly alloy used on hot-work tool
and dies that are subject to heat checking, especially
when water-based coolants are used. Uses include the
repair and overlay of aluminum, zinc and magnesium
die-casting dies, press-forging dies and inserts.
Rc 54-57
Specification: AISI H-13
Available forms: E , FC , TIG , MIG
Polymatic® 960 (AC/DC) - A tungsten-rich
chromium AISI H-21 hot-work tool steel designed to
withstand extreme heat, high abrasion and shock. Uses
include hot header dies, woodworking router bits and
extrusion components.
Rc 56-58
Specification: AISI H-21
Available forms: E , FC , TIG
Weld Mold® 962 - A special high-chrome/moly
hot-work tool steel specifically formulated to give high
hardness and excellent wear resistance for both hot and
cold working applications.
Rc 50-52 as-welded. Can be tempered to lower
Specification: NA
Available forms: FC , TIG , MIG
Weld Mold® 964 (AC/DC) - A highly
wear-resistant alloy for hot-work applications such as
overlays on aluminum die cast dies and open forging dies
used for titanium and other unyielding exotic alloys.
Production increases of up to 300% more than original
die blocks have been reported. Double tempering is
strongly recommended.
Rc 45-50
Specification: NA
Available forms: E , FC
Weld Mold® 966 (AC/DC) - A high-quality,
finely drawn, 8% molybdenum, high speed alloy used for
the repair and reclamation of AISI M-1 and M-2
high-speed tool steel. It retains maximum hardness up to
operating temperatures of 1,100 Deg. F., along with good
wear and abrasion resistance. Typical applications
include repair of broaches, drills, and piercing,
blanking and trimming dies. Double tempering is strongly
recommended.
Rc 60-63 as-welded
Specification: AISI M-2
Available forms: E , FC , TIG , MIG
Weld Mold® 967 (AC/DC) - A premium-quality
welding alloy of cobalt/moly/chrome for AISI M-42
high-speed tool steel where maximum hardness is needed.
Produces superior cutting edges on all type of
high-speed tools. Double tempering is recommended.
Rc 65+
Specification: AISI M-42
Available forms: E , FC , TIG
Weld Mold® 988 (AC/DC) - A highly versatile
product used for the repair and reclamation of AISI H-19
hot-work tool steel. Cobalt addition greatly increases
resistance to heat checking, thermal fatigue,
metal-to-metal wear and abrasion under sever hot and
cold work applications.
Rc 54-57
Specification: AISI -19
Available forms: E , FC , TIG , MIG
Polymold® 9210-T - For welding AISI P-20. A
high-quality drawn wire of chrome/moly/mold steel
designed to match the wear and polishing qualities of
most injection-mold steels. Deposits are dense, tough
and readily machined.
Rc 34-36 as-welded
Specification: AISI P-20
Available forms: TIG , MIG
weld Mold® 9580 (AC/DC) - A superior 5%
chrome/tungsten-enriched alloy. Used to upgrade standard
AIAI H-12 tool steel for extra-tough welds in hot and
cold working applications. Excellent for composite tool
applications such as hot shear blades, punches and
automotive forming or blanking dies and trim sections
for material up to 1/4" thick. This alloy is also
available with a titania coating for superior re-strike
and AC operation as Weld Mold® 9570.
Rc 55-58
Specification: NA
Available forms: E , FC
Polyforge® 9630 (AC/DC) - A low-carbon
chrome/moly/nickel/vanadium alloy for welding
impressions on standard and high-energy impact forging
dies. Produces a tough but machinable high-alloy weld
deposit which out performs standard 5% chromium grades
of hot-work alloy tool steel.
Rc 38-43
Specification: NA
Available forms: E , FC
Polyforge® 9650 (AC/DC) - A medium-carbon
chrome/nickel/moly wear-resistant alloy for standard and
high-energy forging dies. Deposits shock-resistant,
extra-high-performance weld metal that reaches maximum
hardness as deposited and is highly resistant to
heat-checking, corrosion and wear.
Rc 44-46 as-welded, Rc 38-42 as tempered
Specification: NA
Available forms: E , FC
Weld Mold® 9770 (AC/DC) - A premium alloy for
welding maraging 250 and 300 tool steels. As-welded
hardness permits machining prior to maraging
(age-hardening). Used primarily on high-wear areas of
aluminum and zinc die-casting components.
Rc 30-32 as-welded. Rc 48-52 @ 900 Deg. F./3 Hrs
Specification: AISI Marage 250/300
Available forms: E , TIG , MIG
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