Copper alloys
Brass 360
UNS C36000 is a leaded free-cutting brass, not generic 70/30 brass.
Identity / state reference
What distinguishes this material
C36000 is the comparison reference for a copper-family machinability index; this is not a speed multiplier across metals.
- Designation in this reference
- UNS C36000
- Forms covered by the sources
- Rod/bar form must be established from its product specification
- States to distinguish or confirm
- Supplied temper must be confirmed
- Temperature and exposure
- No general service-temperature limit or temperature-independent strength is established by this page. Check the temperature and duration for the specific source table and application.
Other search names in these sources
C36000
Read the scope above: a source’s related product name is not a blanket interchangeability statement.
Property evidence for a stated condition
No condition-specific numerical table is reproduced here
The linked sources establish the identity and the stated product/state scope. Obtain the row for your actual form, section, treatment and test conditions before adopting strength, hardness or a thermal limit.
Resolve these conditions next
- Which product standard and temper apply, and what lead/composition requirements govern this component?
- Obtain the full material certificate, governing specification/edition, product dimensions and test direction before adopting a property value.
For machining, take the exact grade, supplied condition and measured hardness where applicable into the tool maker’s application data. A generic material-family speed is not a substitute for an operation and tool-specific recommendation.
Sources and what they establish
Reviewed 23 October 2026. A source’s publication date and the review date are different. The scope below identifies the fields checked.
CDA UNS register — wrought brasses
Official UNS composition register entries for C26000, C36000 and C46400; distinguishes leaded free-cutting brass from uninhibited naval brass. No temper strength limits.
CDA UNS register — wrought brasses ↗CDA — Working with Copper
Copper-family fabrication reference; machinability comparison base C36000, not a universal cross-family percentage or cutting-speed recommendation.
CDA — Working with Copper ↗Source identity, a named product example and a supplied-batch certificate are different evidence. Cross-standard similarity does not approve substitution.
Corrections from the previous article
- Remove the unsupported 300% rating and single 340 MPa strength; do not imply regulatory approval from alloy name alone.
- Remove the untraceable generic machining recommendation (300 %) and cutting-speed ranges; select machining data by actual material condition, tool and operation.
Compare a bearing-bronze record
The C93200 bronze record describes a different copper alloy. Consult its identity and condition rather than applying free-machining brass values.