Copper alloys

Cupronickel C70600

UNS C70600 is the 10% nickel wrought copper-nickel grade.

Specific property examples

What distinguishes this material

Bar, rolled product and tube have different condition rows; nominal 90/10 is not the full chemistry specification.

Designation in this reference

UNS C70600

Forms covered by the sources

Bar
Flat product
Tube

States to distinguish or confirm

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

C70600

Read the scope above: a source’s related product name is not a blanket interchangeability statement.

Property evidence for a stated condition

Read the complete example before using a number. Typical values are not guaranteed limits. Missing test conditions remain visible.

Specific source example

CDA annealed tube example

Product / specimen: Tube; wall dimensions not stated in this row
Condition: O61 annealed
Test temperature / environment: 20°C / 68°F

Values apply to the example above
Property	Value	Meaning and method
Tensile strength	44 ksi	typical Source mechanical table; test standard not stated
Elongation	42 %	typical Source mechanical table; gauge length not stated

Copper Development Association — C70600 ↗

Resolve these conditions next

Does the item use an annealed tube row or a bar/plate row and which seawater-system specification governs it?
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.

Continue to a machining task →Check specified size limits →

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.

Copper Development Association — C70600

Specific alloy database entry; identity and listed form/temper distinctions. Direct fetch intermittently returns 403; indexed first-party text inspected on review date. No supplied-batch certification.

Copper Development Association — C70600 ↗

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 context-free 380 MPa/60 HRB pairing and blanket service suitability.
Remove the untraceable generic machining recommendation (70 %) and cutting-speed ranges; select machining data by actual material condition, tool and operation.

See this page’s review record →

Other references in Copper alloys

Related references, not equivalent substitutes.

Aluminium Bronze C63000 →Beryllium Copper C17200 →Brass 260 →Browse this family →