Specialty Products

Alloys

Standard and custom lead alloys—antimonial, bullet, tellurium, and chemical lead—per federal specs.

Made in the U.S.A.ISO 9001:2025 Certified
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Alloys
Specialty ProductsMayco Industries
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In-house
Quality
ISO 9001
Customization
Engineering support
Lead times
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Description

Overview

Standard and custom lead alloys—antimonial, bullet, tellurium, and chemical lead—per federal specs.

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.

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.

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.

Applications

Typical applications

Where this product is engineered to perform.

  • Formulating specialized lead-antimony, lead-tin, lead-calcium, and lead-silver alloys

  • Custom melting to exact customer chemical and metallurgical specs

  • Anode and battery plate manufacturing

  • Soldering and chemical process manufacturing

Industries

Industries served

OEMsEnergyAerospace / DefenseChemical Processing
Specifications

Product specifications

Stock Lead AlloysSpec Number | Description | Lead (Pb) | Copper (Cu) | Tellurium (Te)
pig leadQQ-L-171 Gr A | Corroding | 99.9% min
pig leadQQ-L-171 Gr B | Corroding B | 95% min
pig leadQQ-L-171 Gr C | Chemical | 99.9% min | .040-.080
sheet & plateQQ-L-201f Gr B | Corroding B | 99.5% min
sheet & plateQQ-L-201f Gr C | Chemical | 99.9% min | .040-.080
sheet & plateQQ-L-201f Gr D | Te Plate | 99.85% min | .040-.080 | .035-.060
pig & lead woolQQ-C-40 Gr C | Corroding | 99.7% min
QQ-C-40 Gr DTe Caulking | 99.82% min | .040-.080 | .035-.055
ASTM B749 or B29L50049 | ASTM Corroding / Pure | 99.94% min | .0015 max

Specifications subject to custom engineering and alloy options. Contact Mayco engineering for specific sizes, tolerances, and custom certifications.

Engineering Support

Need a custom size, alloy, or configuration?

Mayco provides engineering support and design consultation — from small radiation shielding jobs to large ballast projects. Our team can help specify the right product, dimensions, and tolerances for your application.

Made in the U.S.A.

Every Mayco product is manufactured in-house across our U.S. plants and backed by our ISO 9001 quality system.

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