Bronze Alloy Equivalents Chart

International Bronze Alloy Equivalents Chart

Working from an old drawing or an overseas material callout? This chart helps you translate common bronze and copper alloy designations into the U.S. / UNS grades used on Precision Bronze material pages. For example, a German print may call out Rg7, a British spare part may list LB4, a European datasheet may use CC493K, and a Japanese drawing may specify CAC403.

Use the finder below to start with the designation you already have. It will point you to the closest material page so you can review chemistry, typical applications, available forms, and the details needed for a clean RFQ.

How to Use This Chart

1. Enter the grade from your drawing, purchase order, maintenance record, or old parts list.
2. Open the suggested Precision Bronze material page.
3. Compare the chemistry, properties, casting form, and application notes.
4. Send the drawing, dimensions, quantity, and any inspection requirements for final review.

Equivalent Does Not Always Mean Identical

International alloy names are useful for sourcing, but they are not always one-to-one replacements. Two grades may work as functional equivalents for bushings, bearings, or machined parts while still having different chemistry limits, casting requirements, or mechanical property ranges.

For critical equipment, marine service, pressure service, high-load bearings, or regulated applications, do not approve a material change from a cross-reference chart alone. The drawing, specification, and operating conditions should control the final alloy selection.