Duplex S31803 Fasteners

AISI 4130 Bolts

BoltPort is a manufacturer and supplier of duplex 2205 grade equivalent uns s31803 fasteners such as bolts, screws, stud bolts, threaded rods, nuts, washers, dowel pins, and other custom bolting components. We offer both metric and imperial sized fasteners in duplex alloy S31803. Duplex stainless steel 2205 fasteners are produced from premium quality rolled bar stock or forged bars with latest material specifications. Boltport can manufacture alloy S31803 fasteners in ASME, DIN, ISO & other international dimension standards. These duplex fasteners are also available in equivalent grades F51, UNS S31803, DIN EN 1.4462 and Uranus 45n.

Hex bolts, heavy hex bolts, stud bolts, tap end studs, double end studs, threaded rods, hex nuts, heavy hex nuts, nylock nuts, hex jam nuts, castle nuts, plain washers, spring lock washers and tab washers, dowel pins are most common of duplex alloy S31803 fastening parts.

About Duplex S31803

UNS S31803 is uns designation and comparable steel grade, equivalent of duplex steel alloy 2205 with minor correction in chemical composition. Duplex S31803 has less tolerant chemistry as compared to duplex steel 2205 with slightly lower mechanical properties. However its resistance to stress corrosion chloride cracking, pitting and crevice corrosion remains constant.

Duplex S31803 Properties

Chemical Composition

  • Carbon C 0.03 % Max
  • Chromium Cr 21.0 - 23.00 %
  • Manganese Mn 2.00 % max
  • Molybdenum Mo 2.50 - 3.50 %
  • Nickel Ni 4.50 - 6.50 %
  • Phosphorus P 0.03 % max
  • Sulphur S 0.02 % max
  • Silicon Si 1.00 % max
  • Nitrogen N 0.08 - 0.20 %
  • Iron Fe Balance

Mechanical Properties

  • Tensile Strength : 620 MPa
  • Yield Strength : 450 MPa
  • Elongation at Break : 25 % min
  • Hardness, Brinel : 290 max

Duplex S31803 Grade Equivalent

Alloy Name UNS Designation DIN/EN Werkstoff Uranus Grade Forging Grade
Alloy 2205 S31803 1.4462 45N ASTM A182 F51

Duplex S3180 Fastening Products

Duplex S31803 Specifications

Specifications Material Form Products
ASTM A182 Grade F51/UNS S31803 Forgings Bolts, Screws, Stud Bolts, Nuts, Forged Components
ASTM A240 Grade 2205/UNS S31803 Plate, Sheet & Strips Washers & Sheet Metal Components
ASTM A276 Grade 2205/UNS S31803 Bars & Rods Bolts, Screws, Stud Bolts, Threaded Rods, Nuts & Bar Components
ASTM A479 Grade 2205/UNS S31803 Bars & Rods Bolts, Screws, Stud Bolts, Threaded Rods, Nuts & Bar Components
ASTM A1049 Grade F51/UNS S31803 Forgings Bolts, Screws, Stud Bolts, Nuts, Forged Components
ASTM A1082 Grade 2205/UNS S31803 Bolting Bolts, Screws, Nuts

Page Keywords

Duplex Stainless Steel, Duplex Steel, Alloy 2205, Duplex Fasteners, Bolts, Screws, Stud Bolts, Threaded Rods, Nuts, Washers, Dowel Pins, Custom Bolting, Components, DIN EN Werkstoff Number 1.4462, Uranus 45n, ASTM A182, Grade F51, UNS S31803, Grade F60, UNS S32205, ASTM A240, ASTM A276, ASTM A479, ASTM A1049, ASTM A1082, Bolting, Fastening