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C17510 Nickel beryllium copper
CuNiBe, C17510. High strength and heat resistant coppers. Welding electrode holders, high conductivity springs, parts needing strength with moderate conductivity.
Specification
- UNS
- C17510
- Conductivity
- 45 to 60 percent IACS
- Machinability
- 20 (C36000 = 100)
- Specification
- ASTM B441 (rod and bar). RWMA Class 3.
- Usual temper
- TF00 precipitation hardened
Published typical values for the alloy, not a promise from any shop. Where these numbers come from.
How it machines
Contains beryllium, so machining needs the same particulate controls as C17200. Machines soft at TB00, hardens to TF00. Abrasive when aged. Conductivity depends strongly on temper, so the temper is part of the electrical specification.
Watch out. Conductivity varies widely with temper, so quote the temper alongside the grade or you are not specifying anything.
Typical parts
- Welding electrode holders and backing
- High conductivity springs
- Bearings and bushings carrying current
- Structural parts needing moderate conductivity
When not to specify it
Do not quote the grade without the temper, because conductivity varies by a third across tempers. Declare beryllium content in the RFQ so unequipped shops decline early.
Drawing callout
Replace the bracket with the ASTM specification for your product form. The RFQ builder does this for you and adds edge, finish and plating lines.
Nickel beryllium copper, UNS C17510, [ASTM spec for your product form], temper TF00 precipitation hardened
Other high strength and heat resistant coppers
Age hardened alloys chosen for strength, hardness or hot performance. Conductivity drops, sometimes a long way, and none of them machine quickly.
- C15000
Zirconium copperResistance welding electrodes for aluminum and coated steel, and parts that must stay conductive while hot. - C18150
Chromium zirconium copperWelding electrodes and holders, high duty contacts, parts that see heat and load together. - C18200
Chromium copperThe general purpose resistance welding electrode material. Also mould inserts and hot stiff parts. - C17200
Beryllium copperSpring contacts, connectors, non-sparking tools, mould inserts, high fatigue components.