Super Hard Alloy Metal Ingot - 5 pounds (30%-Antimony, 70%-Lead)

(17 reviews) Write a Review
in stock
5.00 LBS
Calculated at Checkout

Bulk discount rates

Below are the available bulk discount rates for each individual item when you purchase a certain amount

Buy 9 - 48 and get 4% off
Buy 49 - 99 and get 7% off
Buy 100 - 249 and get 9% off
Buy 250 - 499 and get 12% off
Buy 500 or above and get 16% off


5 pound ingot

This ingot measures approximately 8-3/4" x 1" x 2"/

This is an alloy of 30% Antimony and 70% Lead that is a great source for hardening up your lead or wheel weights and is much easier to melt then pure antimony as we have done the alloying for you. This alloy will melt at around 745 Degrees which should be easy to reach in most small melting pots.

We sell Super Hard based on the percentage of antimony in the alloy. Note: We make no promise on Brinell Hardness of Super Hard, as the crystalline structure of the alloy does not allow us to properly measure it
, you would need a special commercial larger ball diameter machine in order to read the hardness correctly.

Lots of great info here about using super hard!

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17 Reviews

  • 5
    This is the best thing to add to existing lead/tin alloy, to give that little bit extra to bring it up to the hardness you.

    Posted by Roger Schendel on Oct 24th 2020

    I recast this into 1/2 lb ingots in order to achieve the alloy hardness i want.

  • 5
    Very happy with the quality

    Posted by Jordan Roberts on Oct 12th 2020

    Super fast shipping and excellent quality!! I will be coming back here for more

  • 5

    Posted by benny maxey on Sep 19th 2020

    it's makes lead hard

  • 5
    Super hard alloy

    Posted by James Orange on Sep 19th 2020

    product seems to be just as advertised. Seller shipped quickly and product arrived with no issues. Have not used the alloy yet but see no reason to be concerned.

  • 5
    super hard alloy works great but something seems strange

    Posted by william j pollock on Jul 2nd 2020

    Ok check this out 5 pounds of super hard and one pound of antimony are usually about the same price within a couple dollars or so. So when you buy super hard there is actually 1.5 pounds of antimony in that 5 pound ingot plus 3.5 pounds of lead. That's like getting four pounds of metal for free or Roto Metals is charging way to much for antimony. But really it is a good product much easier and cleaner than alloying the antimony yourself.

  • 5
    Super Hard Alloy Metal

    Posted by Bob on May 31st 2020

    Works well when I make an alloy for casting bullets.

  • 5

    Posted by D. Hartford on May 15th 2020

    I used 1# of the SH with 4# of pure and 2 oz. of tin nuggets to get a BHN of 13.8. Roto shipping was fast and the ingots arrived well packaged. I will definitely be using them again.

  • 5
    Seems good.

    Posted by Rowdy on May 14th 2020

    I usually use this to make a blend just a tad tougher than Linotype. Stuff is way to brittle to use alone. But blends amazingly. Don’t forget to flux.

  • 5

    Posted by David Barnaby on May 1st 2020

    The products I have used from RotoMetals are excellent quality, shipped fast and correctly, great company.

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