Stainless steel 321 din934 hex nut din931 hex bolt and nut DIN912 Hex Socket bolt screw
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Stainless steel 321 din934 hex nut din931 hex bolt and nut DIN912 Hex Socket bolt screw

Material: stainless steel 321

Finish: plain

Samples: Free

Standard:din934;din933 , din912 drawing or samples 

 

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Applications

321 stainless steel is a Ni-Cr-Ti type austenitic stainless steel, featuring excellent corrosion resistance, high temperature resistance, and creep resistance.321 stainless steel is applied in outdoor machinery for the chemical, coal, and petroleum industries with high requirements for anti-corrosion performance, as well as in boiler pipes, drying machine spiral welded pipes, aircraft, etc.

Petrochemical industry

Equipment such as oil refining units, chemical reactors, transportation pipelines, and heat exchangers are tightly connected. 2205 and 2507 duplex steel perform exceptionally well in media containing hydrogen sulfide and chloride ions; 904L is suitable for non-oxidizing acid environments such as sulfuric acid and phosphoric acid.

Marine engineering

Offshore oil platforms, seawater desalination devices, ship equipment, etc. 2507 super duplex steel has excellent resistance to pitting and crevice corrosion in seawater and is the preferred material for marine engineering fasteners.

Nuclear energy

Nuclear island equipment, conventional island equipment, flue gas desulfurization devices, etc. 660 precipitation hardening steel is used for high-temperature and high-pressure components; 321 stainless steel is used for pipeline systems. rail traffic

High-speed rail, subway vehicle and track infrastructure construction. The products possess high strength, fatigue resistance, vibration resistance and other characteristics, ensuring operational safety.

Environmental protection equipment

Equipment for desulfurization and denitrification of flue gas, sewage treatment, and waste incineration. 317L and 904L have excellent corrosion resistance in environments with chlorine-containing exhaust gas and acidic wastewater.