Cupronickel 70-30 Bolts Specification

Cupronickel 70-30 Bolts manufactured at TorqBolt are seawater resistant,crevice resistant,stress corrosion crack resistant & hydrogen embrittlement resistant.

Dimensional standards as per DIN 931,DIN 933,BS 1768,UNI 5731,UNI 5737,UNI 5739,ISO 4014,ISO 4017,BS 1769,BS 3692 are provided.

The raw material of these fasteners is classified as copper based nickels. Being a PED certified Fasteners Manufacturer by TUV Rheinland,our fasteners are accompanied with EN 10204 3.1/3.2 certification. Cupronickel 70-30 Bolts are available in hot forged,cold forged and bar stock machined conditions depending upon the order quantity.

Copper Nickel 70-30 Is A High Content Resistant To Corrosion At Elevated High Temperatures Due To Presence Of Nickel Oxide At High Temperature. 70-30 Is Extremely Used In Offshore Industries.

Cupronickel 70-30 Equivalent Designation

UNS DesignationBritish STDWerkstoff No.European STD
C7150028712.0882Cuni30fe

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