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Alpha Fry AT-31604 60-40 Rosin Core Solder (4 Ounces)

4.7 out of 5 stars 564 customer reviews
| 15 answered questions

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  • Fine electrical soldering
  • 60-Percent tin and 40-percent lead
  • 376 Degree F melting point
  • 0.062 Diameter. 4-Ounce
  • Made in Mexico
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Frequently Bought Together

  • Alpha Fry AT-31604 60-40 Rosin Core Solder (4 Ounces)
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  • SE MZ101B Helping Hand with Magnifying Glass
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  • Aven 17542 Desoldering Wick, 2.5mm Width, 5' Length
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Product Description

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Product Description

This spool of American Terminal AT-31604 Solder contains 4 ounces of 1/16" solder with a leaded rosin flux core. The 60% tin, 40% lead combination is perfect for jobs like fine electrical soldering which requiring lower melt temperatures. AlphaFry is the company that produces the product, Alphametals is the brand on the roll of solder.

From the Manufacturer

60/40 Electrical Rosin Core Solder AM31604.

Product Information

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Technical Details

Part Number AT-31604
Item Weight 3.2 ounces
Product Dimensions 6 x 4 x 1 inches
Item model number AT-31604
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Item Package Quantity 1
Warranty Description UNAVAILABLE

Additional Information

ASIN B00030AP48
Customer Reviews
4.7 out of 5 stars 564 customer reviews

4.7 out of 5 stars
Best Sellers Rank #325 in Home Improvements (See top 100)
#1 in Industrial & Scientific > Industrial Power & Hand Tools > Welding & Soldering > Soldering & Brazing Equipment > Solder & Flux > Solder
#3 in Automotive > Tools & Equipment > Welding Equipment > Welding Equipment & Accessories
#3 in Industrial & Scientific > Industrial Power & Hand Tools > Welding & Soldering > Soldering & Brazing Equipment > Parts & Accessories
Shipping Weight 4 ounces (View shipping rates and policies)
Date First Available August 29, 2005

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

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I was glad to find real tin-lead solder is still available! But reading the user reviews made me realize that some users were having problems because they don't fully understand solder and soldering. So here are a few tips some of you might find helpful:

1. Solder is used as a kind of glue to hold pieces of metal together and conduct electricity and heat between them.

2. To do this, you need to apply a metal that has a melting point lower than any of the metals being joined, else they will melt first.

3. For almost all electrical work, we could use lead, which is very cheap, but melts at about 328C (622F). Tin is expensive, but melts much more easily, at 232C (450F).

4. If we mix tin and lead together, we get an alloy which melts even more easily. It turns out that 60% tin and 40% alloy (60/40), like this solder, melts at 188C (370F). Even better, but more expensive and hard to find, is 63% tin and 37% lead, which melts at about 183C (361F). Plumbers use 50% tin and 50% lead alloy, melting at about 214C (418ºF). Avoid it for electrical/electronic work.

5. To get a good solder joint, the parts to be joined MUST be clean! Use a wire brush or sandpaper (not steel wool, bits of which can drop on your work and create short circuits.

6. Wrap the CLEAN wires together or clamp your CLEAN work so it will not move after you remove the soldering iron. Press the hot iron against the joint and touch the solder wire to the iron tip where it contacts the joint. Let a very small amount of solder melt and get drawn into the joint to help heat to travel into the joint. Then touch the solder to the part being soldered. To get a good joint, the JOINT, NOT THE IRON must melt the solder. The solder MUST "wet" the joint and flow into the joint smoothly.
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This solder used to be made here in the U.S.A. and used to say Alpha Metals. Now, it's made in Mexico and says Alpha Fry. Amazon has not updated the advertisement photo. It's still the great quality solder as before! Even if they start making this brand in China, I will still buy it as long as it's as great as now.

This solder roll is the 31604 which is the thicker wire one. If you prefer a thinner wire, simply buy the 31605 roll. Except for the wire thickness, they're exactly the same. Both are 4 ounces, so you get the same amount of solder. Both are 60% tin and 40% lead, so you get the same percentage.

For some reason, most people buy this thicker wire 31604 here at Amazon. I prefer and recommend the thinner wire 31605 because you can use it for large and small projects. With this thicker 31604, you tend to apply too much solder in small projects.
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I liked the way this solder worked for my electronics project. I had no issues at all. It melted quickly, held fast and is nice and shiny. It is nice when a product works like it is supposed to work.
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Length: 4:39 Mins
Rosin Core Solder American Terminal / B00030AP48

It's been awhile since I've had to buy solder, and I bought this mainly on the strength of the purchase price. It's a little thick, but melts nicely (I used Black & Decker CI500S Dual-Temperature Soldering and Craft Iron) and I'm impressed with how quickly and cleanly it melts. I've used this to successfully solder in new batteries for my Gameboy games, and I couldn't be happier.

~ Ana Mardoll
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Nothing does - but for everyday soldering I'm just happy this is available and works just like it did in the old days. Tin/Lead solder was developed because it WORKS. No silly green concerns - a reliable, simple electrical connection has more merits than some might think.

It was fresh solder, and the flux was more than adequate for 12vdc wiring that I needed to do.

Good stuff.
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I purchased this for a guitar pickup repair / rewiring worked great. I could not be happier. You also have to be careful especially with the type of solder you use because it can damage the components. This solder flows very easy and I had no issue.
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If you're a mild-moderate user & debating between the thinner & thicker wire, I would choose the thinner. It is very easy/convenient to pull off ~6' of thinner wire, fold it in half, fasten one end to a stationary object, stick the other end in a drill, and spin the drill to make a double thickness wire. Then I have ~3' of thicker wire that I wrap into a nice bundle & keep in my soldering iron kit.

Seems to be really good stuff. I'm no electrician, but know the importance of having quality tools (especially when you lack the talent/technique/knowledge to work around the faults of poor quality). This is definitely easier to use than the typical thick stuff you would find packaged with a new soldering iron, or get in those small tubes. My local electronics supply warehouse agreed that it was a quality product, I trust their knowledge a lot more than mine.
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Simply put, this is awesome solder for all sorts of uses.

It comes in a sturdy case (unlike the spring style tubes which i hate) and is nice and easy to use.

I definitely give it an A+ for everything I've done with it.
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