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 forMSRP: $21.99Now: $8.99Was: $16.63 -
On Sale
Roto158F Low Melt Fusible Bismuth Based Alloy Ingot (Wood's Metal)
Rotometals.com
MSRP: $19.99Now: $16.99Was: $18.99Sold by the Ingot. Sds hereMSRP: $19.99Now: $16.99Was: $18.99 -
On Sale
Roto158-190F Low Melt Fusible Bismuth Based Alloy Ingot
Rotometals.com
MSRP: $19.99Now: $16.99Was: $18.99Sold by the Ingot. SDS here.MSRP: $19.99Now: $16.99Was: $18.99 -
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 machine$16.99 -
On Sale
Low Melt Fusible Bismuth Based Alloy Ingot Cerrobend
Rotometals.com
MSRP: $19.99Now: $16.99Was: $18.99Sold by the Ingot. Sds hereMSRP: $19.99Now: $16.99Was: $18.99 -
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 alloyÂMSRP: $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.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$28.99 -
Roto 158 Fixturing Reusable Alloy (Cerrobend) 1# Bars
AIM
$30.98158 Degree Melting Alloy - Eutectic  Â$30.98 -
On Sale
Roto281F Low Melt Fusible Bismuth Based Alloy Ingot
Rotometals.com
Now: $35.99Was: $47.80Sold 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...Now: $35.99Was: $47.80 -
On Sale
Lead-free, Fishing Tackle Weight Bismuth-Tin Alloy - 281
Rotometals.com
Now: $35.99Was: $38.99Sold 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...Now: $35.99Was: $38.99 -
On Sale
Roto281-338F Low Melt Fusible Bismuth Based Alloy Ingot
Rotometals.com
Now: $35.99Was: $38.99Sold 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...Now: $35.99Was: $38.99 -
95% Bismuth 5% Antimony Alloy Ingot
Rotometals.com
$35.99Sold by the Ingot.An ingot of of 95% Bismuth 5% Antimony Ingot dimensions 4" x 1 1/2" x 3/4"$35.99 -
Low Melt Pewter (SN45/BI55) Tin Bismuth Lead Free Made in USA
$43.99A one pound ingot of RotoMetals' Sn 45 %/ Bi 55 % +/- 2%Â . Our low melt pewter comes in ingot form but has been known to be used as a solder as well. Ingot size is approximately 4" x 1.5" x 5/8"Â ...$43.99 -
Roto136F Low Melt Fusible Bismuth Based Ingot Alloy Ingot - 1/2 pound per ingot
Rotometals.com
MSRP: $53.99$48.50Sold by the half pound i.e. 1 Quantity = 1/2 Pound #136 Alloy The ingot weighs approximately 1/2 pound and consists of 49% Bismuth, 18% Lead and 12% Tin.MSRP: $53.99$48.50 -
Roto140F Low Melt Fusible Bismuth Based Alloy Ingot
Rotometals.com
MSRP: $77.99$73.55Sold by the Ingot. An ingot of Roto140F will average approximately 1 pound and consists of 47.5% Bismuth, 25.4% Lead, 12.6% Tin, and 9.5% Cadmium. This alloy melts at around 140 degrees F.<MSRP: $77.99$73.55 -
Roto117F 1/2 pound Low Melt Fusible Bismuth Based Ingot Alloy Ingot
Rotometals.com
$74.99Sold By the Ingot i.e. 1 Quantity = 1/2 Pound Fusible Alloys include a group of binary, ternary, quaternary, and quinary alloys containing bismuth, lead, tin, cadmium and indium. TheÂ$74.99 -
Roto147F Low Melt Fusible Bismuth Based Alloy Ingot
Rotometals.com
$79.99Sold by the Ingot. An ingot of Roto147F weighs approximately 1 pound and consists of 48% Bismuth, 25.6% Lead, 12.8% Tin, and 9.6% Cadmium. This alloy melts at approximately 147 degrees F. Ingot...$79.99 -
Low Melt Alloy Bismuth-Tin Balls
Rotometals.com
MSRP: $107.99$104.25Now available from Rotometals! We can make low melt alloys in ball form! Minimum 500 pounds per order.MSRP: $107.99$104.25 -
Roto302F Low Melt Fusible Ingot Alloy Indium 90% Tin 10% - 1/4 lb Ingot
Rotometals.com
MSRP: $116.99$111.99Sold by the ingot, i.e., 1 Quantity = 1/4 Pounds or 4 ounces. This product consists of 90% Indium and 10% tin. The uses for Roto302F include die casting and easy prototyping. ÂMSRP: $116.99$111.99 -
96% Tin 4% Silver Bar Pewter / Solder Bars by the pound 430F
AIM
$112.0096Sn / 4Ag Bar Solder — High‑Purity Tin‑Silver Alloy These solid tin‑silver solder bars are cast from a 96% Tin / 4% Silver lead‑free alloy. Each bar weighs approximately 0.9 lb$112.00 -
Roto144F Low Melt Fusible Ingot Alloy (Field's Metal) -4 ounces
Rotometals.com
$114.00Sold by the Ingot i.e. 1 Quantity = 1/4 Pounds or 4 ounces  Field’s Metal (also known as Field’s Alloy) is a high‑performance low‑melting fusible alloy designed for applic$114.00 -
Roto174F - Lead Free Alternative to Roto158F ~1 pound
Rotometals.com
MSRP: $141.00$129.00Sold by the Ingot.An ingot of Roto174F will average approximately 1 pound and melts at approximately 174 degreMSRP: $141.00$129.00 -
On Sale
Roto203F Pieces Low Melt Fusible Bismuth Based Alloy 30 lb box -Clearance
Rotometals.com
MSRP: $399.00Now: $156.49Was: $349.00Sold by the box ~ 30 pounds each Little pcs of Roto203F will average approximately consists of 52.5% Bismuth, 32% Lead, 15.5% Tin +/- 2% RMSRP: $399.00Now: $156.49Was: $349.00 -
Gallium Indium Eutectic - 10 grams
Rotometals.com
MSRP: $209.99$199.00This low melt eutectic alloy consists of 75.5% Gallium and 24.5% Indium and is available in 10 gram increments. The melting point is 15.7 degrees and has a density of 6.2 g/cm3.This material will...MSRP: $209.99$199.00 -
Low Melting Point Alloy Eutectic - 68.5% Ga, 21.5% In, 10% Sn - 25 Grams
Rotometals.com
$289.00This product may only be shipped via FedEx/UPS ground and may not be air shipped.Galinstan is a family of eutectic alloys of gallium, indium, and tin which are liquid at room temperature. Due to the...$289.00 -
Roto144F Low Melt Fusible Ingot Alloy (Field's Metal) - 1lb Spool 1/8" Dia
Rotometals.com
MSRP: $454.00$449.00Sold by the Spool 1lb  min order 5 qty   2-3 week lead timeMSRP: $454.00$449.00 -
Low Melting Point Alloy Galinstan - 68.5% Ga, 21.5% In, 10% Sn - 50 Grams
Rotometals.com
$499.00Galinstan is a family of eutectic alloys of gallium, indium, and tin which are liquid at room temperature. Due to the low toxicity and low reactivity of its component metals, it finds use as a...$499.00 -
Roto144F Low Melt Fusible Ingot Alloy (Field's Metal) -1 kilo bar
Rotometals.com
$989.00Sold by the Ingot i.e. 1 Quantity = ~1 kilo - 2.2 pounds +/- 5% Field's metal, or Field's alloy (named after Simon Quellen Field), is a$989.00 -
Low Melting Point Alloy Galinstan - 68.5% Ga, 21.5% In, 10% Sn - 1 Kilo
Rotometals.com
$4,598.85Galinstan is a family of eutectic alloys of gallium, indium, and tin which are liquid at room temperature. Due to the low toxicity and low reactivity of its component metals, it finds use as a...$4,598.85