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Alloys

Mayco Industries offers several standard lead alloys and is capable of making most custom lead alloys as requested. If you do not see the alloy you are looking for please contact us for availability.

Alloys

Our “standard stock” alloys can be manufactured into most any product, usually within 10 days or less. Custom run alloys take a minimum of an additional week and can have a minimum order quantity. Minimum quantity will be determined by alloy requested.

Certifications

Mayco can offer a cert of chemical analysis and/or cert of conformance to chemistry only. We cannot offer a cert of conformance to any spec. Mayco Industries does not do physical property testing other than dimensions.
Stock Lead Alloys Spec Number Description Lead (Pb) Copper (Cu) Tellurium (Te)
pig lead QQ-L-171 Gr A Corroding 99.9% min
pig lead QQ-L-171 Gr B Corroding B 95% min
pig lead QQ-L-171 Gr C Chemical 99.9% min .040-.080
sheet & plate QQ-L-201f Gr B Corroding B 99.5% min
sheet & plate QQ-L-201f Gr C Chemical 99.9% min .040-.080
sheet & plate QQ-L-201f Gr D Te Plate 99.85% min .040-.080 .035-.060
pig & lead wool QQ-C-40 Gr C Corroding 99.7% min
QQ-C-40 Gr D Te Caulking 99.82% min .040-.080 .035-.055
ASTM B749 or B29 L50049 ASTM Corroding / Pure 99.94% min .0015 max
ASTM B749 or B29 L51121 ASTM Chemical / Copper 99.90% min .040-.080

Antimonial Lead

Antimonial lead is produced by adding Antimony to Lead. Antimony, number 51 on the Periodic Table of Elements, is a harder metal than lead, thus when mixed with lead, makes it harder and/or firmer. The percentage of Antimony depends upon your application or specifications. Antimonial lead can be supplied in multiple forms. Our dedicated staff can help you decide what is right for you.
Stock Antimony Alloys Lead (Pb) Antimony (Sb) Tin (Sn) Other
M1 98% min 1.00 – 1.99% max 1%
M4 95% min 4.00 – 4.99% max 1%
M6 93% min 6.00 – 6.99% max 1%

Bullet Alloys

Mayco Industries is capable of supplying Bullet Alloy in a wide range of specifications to best suit your equipment. We do extensive quality testing to reduce dross so our customers get the best product and yield for their money. Contact us for pricing and to find out more information about what alloy and product is best for you.
Bullet Alloys Tin (Sn) Antimony (Sb) Lead (Pb) Availability
2/6 2% 6% 92% In Stock (100# min.)
2/7 2% 7% 91% 1000# min.
20-1 5% 95% 1000# min.
30-1 3% 97% 1000# min.

Pure Tin

Mayco can supply pure tin bars, ingots and sheet in various sizes and diameters. Special tin alloys are also available. Tin sheet is typically run on our Britt Mill to create an ultra-smooth, high quality surface.
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Over 200 strong, our production, engineering, operations and sales team has the knowledge and expertise second to none. Meeting the needs of our customers is our highest priority.

Contact Us Today 800.749.6061

Mayco operates three manufacturing plants and five distributions centers in all regions of the United States. We have an experienced workforce with a strong safety record ready to help you.

Mayco operates three manufacturing plants and five distributions centers in all regions of the United States.

We have an experienced workforce with a strong safety record ready to help you.
Mayco Industries is the largest, most diversified manufacturer of lead-based products in the United States. Mayco is the only source for your lead production needs, performing processes such as casting, rolling, machining, extruding, and coating. Mayco offers engineering support and design consultation on everything from small radiation shielding jobs to large ballast projects. Our expert staff is here to satisfy your needs and stay with you through the entire process.

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