Low Melt/Fusible Alloys
Fusible Alloys & Ingots
Rotometals supplies a variety of low-melting-point metals that contain a mixture of bismuth, lead, tin, cadmium and/or indium. Also known as cerro metal alloys, these alloys expand only ~3.3% of their volume when changing from liquid to solid form, making them ideal for many industrial applications. They are often used for casting, tube bending, fixturing, machining parts for soft metal dies, anchoring parts, toggle dies and supporting castings and interrupted cuts.
Most of our low-melting, fusible alloys are cast into square ingots measuring approximately 2-3/8" x 2-3/8" x 5/8" . The product names we use are the approximate melting temperatures in degrees Fahrenheit, as they have no definite melting point. These alloys are normally used in gravity casting, but they also can be used in other casting methods.
No matter what type of eutectic alloys you're searching for, Rotometals has the best prices for low-melting, fusible metals on the market. Rotometals is the largest USA-made fusible alloy supplier for a broad range of Tool & Die applications. Take a look at our complete collection for more details, and feel free to contact us today if you have any questions! We're always happy to help you find the right materials for your specific project.
If you need a specially mixed low melt alloy, please contact us for price and lead time.
NOTE: Price is per Ingot.
Low Melt Alloy Table | |||||||
Type/Approx. Temp in F/C | Antimony | Bismuth | Cadmium | Lead | Tin | Indium | Silver |
Roto117F/47C | 0% | 44.70% | 5.30% | 22.60% | 8.30% | 19.10% | 0% |
Roto136F/58C | 0% | 49% | 0% | 18% | 12% | 21% | 0% |
Roto140F/60C | 0% | 47.50% | 9.50% | 25.40% | 12.60% | 5% | 0% |
Roto144F/62C (Field's Metal) | 0% | 32.50% | 0% | 0% | 16.50% | 51% | 0% |
Roto147F/64C | 0% | 48% | 9.60% | 25.60% | 12.80% | 4% | 0% |
0% | 50% | 10% | 26.70% | 13.30% | 0% | 0% | |
Roto158-190F/70-88C | 0% | 42.50% | 8.50% | 37.70% | 11.30% | 0% | 0% |
Roto174F/79C | 0% | 57% | 0% | 0% | 17% | 26% | 0% |
Roto202F | 0% | 62.50% | 0% | 0% | 37.50% | 0% | 0% |
Roto203F/95C | 0% | 52.50% | 0% | 32% | 15.50% | 0% | 0% |
Roto208F/98C (Rose's Metal) | 0% | 50% | 0% | 25% | 25% | 0% | 0% |
Roto212F/100C | 0% | 39.40% | 0% | 29.80% | 30.80% | 0% | 0% |
Roto217-440F/103-227C | 9% | 48% | 0% | 28.50% | 14.50% | 0% | 0% |
Roto255F/124C | 0% | 55.50% | 0% | 44.50% | 0% | 0% | 0% |
Roto281F/138C | 0% | 58% | 0% | 0% | 42% | 0% | 0% |
Roto281-338F/138C-170C | 0% | 40% | 0% | 0% | 60% | 0% | 0% |
Pewter Solder Bars | 0% | 0% | 0% | 0% | 96% | 0% | 4% |
Now available at Rotometals, Low Melt Alloy Bismuth Tin Balls. There is a minimum 500 pound order, please call with your Bismuth-Tin alloy percentage, required size and amounts and we can give you a quote!
Click here to download the SDS Sheet for the Tin, Bismuth, Lead, Antimony and Cadmium Alloy.
Click here to download the SDS Sheet for the Cadmium, Tin, Bismuth and Lead Alloy.
Click here to download the SDS Sheet for the Bismuth, Indium and Tin Alloy.
Click here to download the SDS Sheet for the Tin, Bismuth and Lead Alloy (No cadmium).
Click here to download the SDS Sheet for the Tin, Bismuth, Lead and Antimony Alloy (No cadmium).
Click here to download the SDS Sheet for the Bismuth and Tin Alloys.
Click here to download the SDS Sheet for Galinstan.
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Roto203F Low Melt Fusible Bismuth Based, Lead, Tin Alloy Ingot
Rotometals.com
MSRP: $15.99Now: $4.99Was: $16.63Sold by the Ingot ~ 1 pound each An ingot of Roto203F will average approximately 1 pound and consists of 52.5% Bismuth, 32% Lead, 15.5% Tin. Roto203F alloy is a Cadmium-Free alternative for Roto158F for Nuclear Medicine...MSRP: $15.99Now: $4.99Was: $16.63 -
Roto212F Low Melt Fusible Bismuth Based Alloy Ingot
Rotometals.com
MSRP: $14.99Now: $12.99Was: $15.59Sold By the Ingot.An ingot will average approximately 1 pound. Roto212F Alloy is an alloy of 39.4% Bismuth, 30.8% Tin, and 29.8% Lead which melts at approximately 212 Degrees. Ingot dimensions 4" x 1 1/2" x 3/4"MSRP: $14.99Now: $12.99Was: $15.59 -
Roto217-440F Low Melt Fusible Bismuth Based Alloy Ingot
Rotometals.com
MSRP: $14.99Now: $13.99Was: $15.59Sold by the Ingot An ingot of Roto217-440F will average approximately 1 pound. This alloy was originated by GE for anchoring punches in dies, anchor non-moving parts in machinery; holding down bolts in concrete floors, locator parts in tooling docks,...MSRP: $14.99Now: $13.99Was: $15.59 -
Roto158F Low Melt Fusible Bismuth Based Alloy Ingot (Wood's Metal)
Rotometals.com
MSRP: $19.99$15.59Sold by the Ingot. Sds hereAn ingot of Roto158F will average approximately 1 pound and consists of 50% Bismuth, 26.7% Lead, 13.3% Tin, 10% Cadmium. This alloy melts at approximately 158 degrees F.Roto158F Fusible Alloy is used to anchor bushings in...MSRP: $19.99$15.59 -
Roto158-190F Low Melt Fusible Bismuth Based Alloy Ingot
Rotometals.com
MSRP: $19.99$15.59Sold by the Ingot. SDS here.An ingot of Roto158-190F weighs approximately 1 pound and consists of 42.5% Bismuth, 37.7% Lead, 11.3% Tin, 8.5% Cadmium. Roto158-190F can be used for proof casting cavities (threads, dies, molds, blind holes), duplicate...MSRP: $19.99$15.59 -
Roto255F Low Melt Fusible Bismuth Based Alloy Ingot
Rotometals.com
$15.59Sold by the Ingot An ingot of the Roto255F weighs approximately 1 pound and consists of 44.5% Lead and 55.5% Bismuth. This alloy can be used to anchor cutlery handles, for inserts in wood, metal parts in glass (Tuflex doors), making fusible spinning...$15.59 -
Low Melt Fusible Bismuth Based Alloy Ingot Cerrobend
Rotometals.com
MSRP: $19.99$15.59Sold by the Ingot. Sds hereAn ingot of Roto158F will average approximately 1 pound and consists of 50% Bismuth, 26.7% Lead, 13.3% Tin, 10% Cadmium. This alloy melts at approximately 158 degrees F.Roto158F Fusible Alloy is used to anchor bushings in...MSRP: $19.99$15.59 -
Roto208F Low Melt Fusible Bismuth Based Alloy Ingot - Rose's Metal
Rotometals.com
$16.63Sold by the Ingot. Each ingot weighs approximately 1 pound. SDS here.Rose's Metal consist of 50% Bismuth, 25% Lead, and 25% Tin. This alloy does not contract upon cooling. Volume of Rose's Metal is .305 lbs/cu in Rose's Metal has many uses:As a...$16.63 -
Roto202F Low Melt Fusible Alloy 62.5%-Bismuth 37.5%-Tin Ingot - Lead Free Alternative to Roto203F
Rotometals.com
$18.46Sold by the IngotAn ingot of Roto 202F Low Melt Fusible 62.5%-Bismuth 37.5%-Tin Ingot weighs approximately 1 pound. This alloy uses include electroforming mandrels, lost wax pattern dies due to greater dimensional accuracy, and holding jet turbine...$18.46 -
Roto281F Low Melt Fusible Bismuth Based Alloy Ingot
Rotometals.com
MSRP: $26.99Now: $20.99Was: $21.99Sold by the IngotAn ingot of Roto281F weighs approximately 1 pound and consists of 58% Bismuth and 42% Tin. This alloy can be used to anchor shafts in permanent Magnesiumnet rotors, locator members in aircraft assembly fixtures, metal parts in glass,...MSRP: $26.99Now: $20.99Was: $21.99 -
Lead-free, Fishing Tackle Weight Bismuth-Tin Alloy - 281
Rotometals.com
MSRP: $23.99Now: $20.99Was: $21.99Sold by the IngotOur environmentally friendly Bismuth-Tin alloy is becoming a popular alternative to lead for fish and other weights. The alloy is 58% Bismuth and 42% Tin. It is easy to melt at 281 F and has 75% weight density of lead (0.3158 pounds...MSRP: $23.99Now: $20.99Was: $21.99 -
Roto281-338F Low Melt Fusible Bismuth Based Alloy Ingot
Rotometals.com
MSRP: $23.99Now: $20.99Was: $22.99Sold by the IngotAn ingot of Roto281-338F weighs approximately 1 pound. This alloy uses include electroforming mandrels, lost wax pattern dies due to greater dimensional accuracy, and holding jet turbine engine blades for machining. The alloy consists...MSRP: $23.99Now: $20.99Was: $22.99 -
42% tin 58% Bismuth Low 281F Low Melt Fusible Bismuth Based Alloy Ingot
Rotometals.com
MSRP: $26.99$21.99Sold by the Pound 20 pound min these bars are about 1.2 pounds each measure 5.75"x3/4"x1.5"An ingot of LOW 281F s of 58% Bismuth and 42% Tin. This alloy can be used to anchor shafts in permanent Magnesiumnet rotors, locator members in...MSRP: $26.99$21.99 -
95% Bismuth 5% Antimony Alloy Ingot
Rotometals.com
$30.00Sold by the Ingot.An ingot of of 95% Bismuth 5% Antimony Ingot dimensions 4" x 1 1/2" x 3/4"$30.00 -
$30.98