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% |
| 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 202F, Roto281F, Roto281-338F (Bismuth and Tin Alloys)
Click here to download the SDS Sheet for Galinstan
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On Sale
Roto203F Low Melt Fusible Bismuth Based, Lead, Tin Alloy Ingot
Rotometals.com
MSRP: $21.99Now: $8.99Was: $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: $21.99Now: $8.99Was: $16.63 -
On Sale
Roto158F Low Melt Fusible Bismuth Based Alloy Ingot (Wood's Metal)
Rotometals.com
MSRP: $19.99Now: $9.99Was: $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: $19.99Now: $9.99Was: $15.59 -
On Sale
Roto158-190F Low Melt Fusible Bismuth Based Alloy Ingot
Rotometals.com
MSRP: $19.99Now: $9.99Was: $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: $19.99Now: $9.99Was: $15.59 -
On Sale
Low Melt Fusible Bismuth Based Alloy Ingot Cerrobend
Rotometals.com
MSRP: $19.99Now: $9.99Was: $16.84Sold 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. The size of this ingot is approximately 4" x 1.5" x 0...MSRP: $19.99Now: $9.99Was: $16.84 -
On Sale
Roto 158 Fixturing Reusable Alloy (Cerrobend) 1# Bars
AIM
MSRP: $19.99Now: $9.99Was: $30.98158 Degree Melting Alloy - EutecticMSRP: $19.99Now: $9.99Was: $30.98 -
Roto217-440F Low Melt Fusible Bismuth Based Alloy Ingot
Rotometals.com
$16.99Sold 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,...$16.99 -
Roto212F Low Melt Fusible Bismuth Based Alloy Ingot
Rotometals.com
MSRP: $20.59$19.99Sold 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: $20.59$19.99 -
Roto208F Low Melt Fusible Bismuth Based Alloy Ingot - Rose's Metal
Rotometals.com
MSRP: $28.99$21.99Sold 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...MSRP: $28.99$21.99 -
Roto255F Low Melt Fusible Bismuth Based Alloy Ingot
Rotometals.com
$28.99Sold 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...$28.99 -
On Sale
Roto281-338F Low Melt Fusible Bismuth Based Alloy Ingot
Rotometals.com
Now: $29.99Was: $35.99Sold 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...Now: $29.99Was: $35.99