40/60 Tin-Lead Solid Solder Bars
Sold by the pound. Quantity 1 = approximately 1 lb of 40/60 solder (typically 3–4 bars).
Rock Shot Products 40/60 Tin-Lead Solid Solder Bars are manufactured from a nominal alloy containing 40% tin and 60% lead. This versatile tin-lead solder provides good wetting and flow characteristics along with dependable joint formation for a wide range of general-purpose soldering, tinning, fabrication, repair, and maintenance applications.
With a melting range of approximately 361°F–460°F (183°C–238°C), 40/60 solder passes through a noticeable plastic or “pasty” range as it heats and cools. This extended working range can be useful in applications where the solder needs to be worked, shaped, or positioned before completely solidifying.
Each bar is hand-poured into a compact form that is convenient to handle, store, and add to a solder pot or melting vessel.
Product Specifications
Alloy Composition: 40% Tin / 60% Lead
Alloy Type: Tin-Lead Solder
Form: Solid Solder Bar
Sold By: Approximately 1 lb increments
Bars Per Pound: Typically 3–4 bars
Approximate Bar Dimensions: 12" × 3/8" diameter
Approximate Bar Weight: 0.25–0.35 lb
Solidus Temperature: Approximately 361°F (183°C)
Liquidus Temperature: Approximately 460°F (238°C)
Melting Range: Approximately 361°F–460°F (183°C–238°C)
Individual bar dimensions and weights may vary slightly due to the hand-poured casting process. Each quantity purchased represents approximately one pound of solder.
Why Choose 40/60 Solder?
The 40% tin / 60% lead composition provides a useful balance between solder flow, wetting characteristics, working range, and material cost.
Unlike eutectic 63/37 solder, which transitions directly between liquid and solid at approximately 361°F (183°C), 40/60 solder has a broader plastic or pasty range before completely solidifying.
This makes 40/60 a versatile general-purpose alloy for applications where an extended working range can be beneficial, including sheet metal fabrication, tinning, repair work, and general metalworking.
Features
- 40% tin / 60% lead composition
- Good wetting and flow characteristics
- Broad working and solidification range
- Strong, dependable solder joints
- Versatile general-purpose solder alloy
- Hand-poured solid bar form
- Convenient size for solder pots and melting
- Suitable for commercial, industrial, repair, and hobby applications
Common Applications
- Sheet metal fabrication
- General-purpose soldering
- Tinning applications
- Metal fabrication and repair
- Maintenance work
- Solder pots
- General metalworking
- Workshop and hobby projects
- Industrial soldering applications
Sold by the Pound
This product is sold in approximately 1 lb increments.
Because individual bars typically weigh approximately 0.25–0.35 lb each, a one-pound order will normally contain 3–4 bars.
Quantity 1 = approximately 1 lb
Quantity 2 = approximately 2 lbs
Quantity 5 = approximately 5 lbs
The exact number of bars may vary depending on individual cast weight.
Need Larger Quantities?
Rock Shot Products supplies tin-lead solder alloys for commercial, industrial, manufacturing, repair, and specialty applications.
If you require larger quantities or recurring supply, contact us for volume pricing and availability.
Rock Shot Products
Rock Shot Products supplies solder bars, casting alloys, specialty metals, and hard-to-find materials for commercial, industrial, and individual customers.
Made in the USA.
Safety Notice: This product contains lead. Wash hands thoroughly after handling and follow applicable workplace, environmental, and safety requirements.
