Cupronickel 70-30 Rings Specification

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

Dimensional standards as per DIN 471,DIN 472,DIN 5417,DIN 983,AS 568,BS 1806,ISO 3601,DIN 3771 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 Rings 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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