Copper-Nickel-TinBeryllium-freeIn production
Niclafor 1000
CuNi9Sn6 · C72700
Niclafor 1000 is a copper-nickel-tin alloy supplied as rods, wires and strips, able to replace beryllium copper in many uses. Designers choose it for connectors, relays, test probes and EMI shielding gaskets that must keep their spring force.
200–1,100 MPaYield strength
400–1,175 MPaTensile strength
0–30 %Elongation
9 %IACSEl. conductivity
Specify this grade
Qualification packs are released after a short form. Export control applies.
Properties
Guaranteed values, by temper.
- Alloy family
- Copper-Nickel-Tin
- Chemistry family
- CuNiSn
- Lead-free
- Yes
Forms
Forms & dimensions available
Rods9 variant(s)
Strips12 variant(s)
Wires10 variant(s)
Dimensional ranges and tolerances on request — machining and finishing are in house.
Standards
Standards & equivalences
- ASTM B740
Product and process qualifications are listed above. Customer approvals are confidential and are not disclosed.
Applications
Markets & applications
Applications
- Connectors, relays and test probes
- Fingerstock gaskets for EMI shielding
- Automotive bushings
- Components for telecom equipment and mobile phones
- Eyewear parts and watch micro-components
Why this grade
Can substitute for beryllium copper in many applications
High fatigue resistance and good stress relaxation resistance for spring contacts
Strictly non-magnetic and non-sparking
Compatible with cold forming, stamping, plating, soldering and brazing
Alternatives
If this grade is not the right trade-off.
GradeChemistryYield strengthChoose it when
Niclafor 1000You are hereCuNiSn1,100 MPaChoose it when a contact, spring or shield is stamped or formed from strip or wire and needs more strength than Niclal 725 offers, compliant with ASTM B740.
DeclaforCuNiSnTe850 MPaChoose it when a precision part is machined from rod and its finish matters, since Declafor is the grade of the family with a tellurium addition for machining and polishing.
HardiallCuNiSn1,250 MPaChoose it when a bearing or bushing machined from bar or hollow bar must be compliant with AMS 4596, AMS 4597 or AMS 4598. It also offers the widest choice of tempers in the family.
Hardiall EcoCuNiSn724 MPaChoose it when a bushing or bearing machined from bar needs the wear behaviour of the Hardiall range and no aerospace specification applies to the part.
Niclal 725CuNiSn600 MPaChoose it when a connector or sensor part is bent or deep drawn from strip, and a balance of elasticity and conductivity matters more than the strength of Niclafor 1000.