S31803 Set Screws Specification

S31803 Set Screws
S31803 Set Screws manufactured at TorqBolt UNS equivalent of 31803, resistant to corrosion with a combination of chromium, molybdenum and nitrogen with restricted chemical composition as compared to 2205. .Dimensional standards as per DIN 913, DIN 914, DIN 915, DIN 916, DIN 551, DIN 553, DIN 438 and BS 4168 are provided.
The raw material of these fasteners is classified as Duplex Stainless Steel . Being a PED certified Fasteners Manufacturer by TUV Rheinland,our fasteners are accompanied with EN 10204 3.1/3.2 certification. S31803 Set Screws are available in hot forged,cold forged and bar stock machined conditions depending upon the order quantity.UNS S31803 is a chromium nickel molybdenum austenitic and ferritic grade. It has improved resistance to stress corossion cracking, piiting, crevice corrossion and high strengths in comparison to other stainless steel grades. It has very good oxidation resiatnce at high temperatures. However, it is prone to embrittlement at 475 Degree celcious if exposed for more than 2 hours. It is widely used in brewing , power generating equipments and wide varierty of marine and oil and gas applicants. It shows very good weldeabliity similar to ther stainless steels, however, it is not suitable for oxytelene arc welding as there is a possibillty of carbon pickup in the welded area.

S31803 Set Screws Equivalent Designation

UNS DesignationBritish STDWerkstoff No.European STDSwedish STDJapanese STDForging
S31803318S131.4470X2CrNiMoN22-5-32377SUS 329J3LSa 182 F51

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