Cupronickel 70-30 Fasteners Specification

TorqBolt is exclusively engaged in manufacturing and stocking nickel based copper alloys renowned as cupronickel 70-30 Fasteners.

Copper Nickel 70-30 is a high content resistant to corrosion at elevated high temperatures due to presence of nickel oxide at high temperature. Alloy 70-30 is extremely used in offshore industries.

Cupronickel 70-30 Fasteners Properties

Chemical Properties
CuPbFeZnNiMn
700.5 max0.4-1.01 max29-331 max

Mechanical Properties
Yeild strengthTensile strengthElongation
Min 0.2% MpaMin MpaMin %
88.0-483372-51745

Physical Properties
DensityElastic ModulusMean Coefficient of ThermalThermal ConductivityMelting Point
(Kg/m3)(Gpa)Expansion(?m/m/°C)(W/m.K)(n?.m)
8.9411716.2291171

Equivalent Designation
ASTM/ASMEAISIUNSBritish StandardWerkstoff No.En NameSwedish(SS)JIS(SUS)
C7150028712.0882CuNi30Fe

Cold Forged Fasteners, Hot Forged Fastener, C-Machined Components / Fasteners, CNC Machined Components / Fasteners, Custom Machined Components / Fasteners, Threaded Components / Fasteners, Non-Threaded Components / Fasteners, Bar Stock Machined Components / Fasteners.