Supplier Guidance
Need a U.S. material match for HTB1?
HTB1 is generally associated with C86500 high tensile brass, not C86300. C86300 is a stronger manganese bronze family grade and should not be quoted as a direct HTB1 replacement without review.
Use this page to start the sourcing conversation, then send the drawing, dimensions, quantity, and operating conditions so the final material can be checked before production.
Equivalent at a Glance
Engineering Check
Material Data to Review Before Quoting
This table gives your engineering, purchasing, or quality team a fast way to compare the source callout with the U.S. material starting point. It supports RFQ review; it does not replace the approved drawing or material specification.
| Item to compare | HTB1 | C86300 |
|---|---|---|
| Typical cross-reference | HTB1 / CuZn35Al1Fe1Mn1 | C86500 is the closer UNS cross-reference |
| C86300 copper (Cu) | Different HTB family grade | 60.0-66.0% |
| C86300 zinc (Zn) | Different HTB family grade | 22.0-28.0% |
| C86300 aluminum / manganese / iron | Lower in HTB1 / C86500 style alloys | Al 5.0-7.5%, Mn 2.5-5.0%, Fe 2.0-4.0% |
| Practical conclusion | HTB1 is not the same alloy as C86300 | Use C86300 only after load, speed, hardness, and drawing review |
Public HTB cross-reference data identifies HTB1 closer to UNS C86500; C86300 is closer to higher-strength HTB-family grades such as HTB3.
Where This Cross-Reference Helps
This page helps when a drawing calls for HTB1 but the sourcing team needs to understand whether a stronger manganese bronze family grade is acceptable.
If your print uses HTB1, include the full drawing, tolerances, quantity, required supply form, and inspection notes with the RFQ. That lets us quote the material and manufacturing route with fewer back-and-forth questions.
Related Specifications You May See
The same material family may also appear under these names or standards: CuZn25Al5Mn4Fe3, CC762S, ZCuZn25Al6Fe3Mn3, CAC304, CuZn25Al5, HTB1.
If one of these appears on your drawing or purchase record, include it with the RFQ. It helps us understand the original specification and avoid quoting a material that only looks similar on paper.
Before You Substitute the Material
Confirm lubrication, shaft material, load, speed, required hardness, and original HTB specification before moving from HTB1 to C86300.
Cross-reference charts are helpful for purchasing and maintenance teams, but they do not replace a formal material specification, mill certificate, or customer-approved drawing.
Available Forms
Common supply forms for C86300
Once the material match looks right, the next question is usually shape and machining route. Precision Bronze can quote C86300 as standard stock or finished parts depending on the drawing, size, tolerance, and quantity.
Bronze Solid Bar Bronze solid round bar and rod stock for machining bushings, bearings, pins, spacers, gears, and custom bronze parts. 
Bronze Cored Bar Bronze cored bar and hollow bar stock for efficient machining of sleeve bushings, bearings, rings, and bronze components. 
Plain Bronze Sleeve Bushings Plain bronze sleeve bushings and cast bronze sleeve bearings in C93200 SAE 660 and alternative alloys for radial load applications. 
Bronze Wear Plates Bronze wear plates, guide strips, and graphite plugged wear plates for sliding surfaces, tooling, and heavy equipment. 
Custom CNC Bronze Parts Custom CNC machined bronze components, bushings, lead screw nuts, wear parts, and replacement parts made from drawings or samples.