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High-purity nickel fasteners

High-purity nickel fasteners

SpecificationMaterial grade: N6, N4
Applicable StandardExecutive standards: GB/T 5235, GB/T 3098; ASTM B160, ASME SB160
Material ConditionSpecification range: metric system M2-M48; Inch 1/4 ″ - 2 ″; Type: outer hexagon, inner hexagon, stud, round head screw, hexagon nut, flat washer spring washer

Product Description: This product adopts N6/N4 high-purity nickel rod for processing and molding, including bolts, nuts, washers, and full set of stud connectors. The nickel content is ≥ 99.6%, and the impurity content is

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Product Overview

Material Performance


1. Corrosion resistance

: resistant to concentrated alkali, caustic soda, salt solution and organic medium, with alkali environment stability far more than stainless steel; The neutral water environment is not easy to rust;

2. Physical properties

: density 8.9g/cm ³, melting point 1455 ℃; Excellent conductivity and thermal conductivity; Curie temperature is 354 ℃, low temperature toughness is not attenuated;

3. Mechanical property

: tensile strength ≥ 380MPa, elongation ≥ 30%; The strength can reach 650MPa after cold work strengthening, with good plasticity and easy processing and welding;

4. Purity advantages

: strictly control the amount of iron, carbon, sulfur and silicon impurities, low gas emission, no precipitation, no pollution to electrolyte and high-purity medium.


[ Process structure ]

1. Formed structure

: standard hexagon head, cylindrical hexagon socket, full thread/half thread, double-head through-wire stud, matched with lock nut and flat washer of the same material to prevent galvanic corrosion;

2. Thread process

: precision roll thread, ISO 6H high precision tolerance, tight occlusion and not easy to slide; The end face shall be chamfered, and the assembly shall be smooth without damaging the base material;

3. Internal process

: full-process vacuum heat treatment, uniform grain without internal stress; Oil-free processing, suitable for vacuum and electrochemical clean working conditions; Dimensional tolerance ± 0.03mm.


[ Application field ]

1. New energy

: fuel cell electrode fastening, electrolytic cell, lithium cell production equipment, energy storage conductive connector;

2. Chemical anti-corrosion

: flange connection of caustic soda unit, alkali reactor, evaporator and strong alkali pipeline;

3. Electronic semiconductor

: vacuum chamber, high-purity instrument, precision electrochemical equipment, low magnetic detection device;

4. Special working conditions

: low-temperature equipment, seawater desalination unit, metallurgical high-temperature alkali treatment equipment, laboratory corrosion reaction equipment.

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