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

(13 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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13 Reviews

  • 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.

  • 5
    good quality

    Posted by Murrell Wilhite on May 1st 2020

    good quality fast shipping very happy

  • 4

    Posted by Larry Mannix on Apr 23rd 2020


  • 5

    Posted by JoAnn Minafo on Apr 9th 2020

    This is what I needed.

  • 5
    Great alloy

    Posted by Steve on Dec 17th 2019

    This works great to mix with soft lead to create your own hardness needs.

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