Aisi 303 Stainless Steel Fasteners Specification

TorqBolt is an exclusive manufacturer of PED certified Austenitic Stainless Steel Aisi 303 Stainless Steel Fasteners.

AISI 303 is most easily machinable Steel of all austenitic grades of stainless steel. This property is due to presence of sulphur in the steel composition, as the sulphur content improves machining, decreases corossion resistance although it remains good in mild environment and reduces the toughness. It is not advisable to use it in marine environments. It has good oxidation resistance when it is exposed to higher temperatures as 760 Degrees celcious. however, it starts to show carbide precipitation at prolonged exposure to higher temperatures. It is easily cold worked, however sharp bending is not advisable.

Aisi 303 Stainless Steel Fasteners Properties

Chemical Properties
CMnPSSiCrNi
0.152.000.200.15-0.351.0017.0-19.08.0-10.0

Mechanical Properties
Yeild strengthTensile strengthElongationReductionHardness
Min 0.2% MpaMin MpaMin %Min %BHN
---40262

Physical Properties
DensityElastic ModulusMean Coefficient of ThermalThermal ConductivitySpecific HeatElectric Resistivity
(Kg/m3)(Gpa)Expansion(?m/m/°C)(W/m.K)0-100°C(n?.m)
802719317.316.3500720

Heat Treatment
Heat to 1010-1120°C and cool rapidly. This grade cannot be hardened by thermal treatment.

Equivalent Designation
ASTM/ASMEAISIUNSBritish StandardWerkstoff No.En NameSwedish(SS)JIS(SUS)
303S30300303S311.4305X8CrNiS18-92346SUS 303

Cold Forged Fasteners, Hot Forged Fastener, C-Machined Components / Fasteners, CNC Machined Components / Fasteners, Custom Machined Components / Fasteners, Threaded Components / Fasteners, Non-Threaded Components / Fasteners, Bar Stock Machined Components / Fasteners.

Metric Range from M1.0 to M100 and Imperial Range from 1/16 inch to 4 inch.

Coarse, Fine, UNC, UNF, UN, BSW, Acme Threads with Half Thread, Full Thread & Double End Thread Configuration.

Hexagon Bolts

  • ANSI B18.2.1
  • ANSI B18.2.3.1M
  • DIN 931
  • DIN 933
  • BS 1768
  • UNI 5731
  • UNI 5737
  • UNI 5739
  • ISO 4014
  • ISO 4017
  • BS 1769
  • BS 3692

Socket/Slotted Set Screws

  • DIN 913
  • DIN 914
  • DIN 915
  • DIN 916
  • DIN 551
  • DIN 553
  • DIN 438
  • BS 4168

Socket/Slotted Countersunk Screws

  • DIN 963
  • DIN 7991
  • BS 4168
  • BS 1981
  • BS 483
  • BS 2470

Socket Cap Screws

  • ANSI B18.3
  • B18.3.1M
  • DIN 912
  • DIN 6912
  • DIN 7984
  • ANSI B18.3
  • ISO 4762
  • UNI 5931
  • BS 2470
  • BS 4168

Stud Bolts

  • ASME B18.2.1
  • DIN 976
  • DIN 938
  • DIN 939
  • DIN 2510
  • BS 4439
  • BS 2693
  • BS4882

Nuts

  • ANSI B18.2.2
  • ANSI B18.2.4.6M
  • DIN 934
  • DIN 936
  • BS 1768
  • BS 1769
  • BS 1083
  • BS 3692
  • ISO 4032
  • ISO 4033
  • ISO 4035
  • UNI 5587
  • UNI 5588
  • UNI 5589

Washers

  • ASME B18.22.1
  • ASTM F436
  • ISO 7089
  • DIN 125
  • DIN 9021
  • BS 4320
  • BS 3410
  • DIN 127
  • BS 4464
  • BS 1802
  • UNI 6952

TorqBolt Inc. is india’s leading Aisi 303 Stainless Steel Fasteners Suppliers, bolts stockist, bolts suppliers, bolts exporters and importer ,bolts dealers, stockholders, indentor, bolts manufacturers, retailers, wholesaler, bolts distributors, traders, specialized in delivering consignments on time by means of Express Courier Services DHL, FedEx, UPS, TNT, etc. to the remote locations. To find your location kindly select the list of countries and states:

Select Country : Select State: