\
Global Suppliers, delivering steel where and when you need it
  • Global Certificate: ISO 9001:2008
  • Language
Triton Alloys

S31803 Duplex Stainless Steel Fasteners

Both S31803 & S32205 are commonly referred as Duplex 2205. Both Grades are precisely Manufactured & Stocked by us. Hex Head Bolts,Stud Bolts,Socket Head Products,Hex Nuts, Flat Washers in Duplex Grade UNS S31803 Steel Fasteners are speciality of TorqBolt.. We can provide Coarse/Fine/Extra Fine with Full Threads/Half Threads configuration UNC/UNF/BSW Threading type. We have ready stock material in Duplex Steel S31803 Hex Bolts/Hex Nut & Flat Washer. We Offer Hex Bolts, Nuts as per DIN/ISO/IS/EN/ASTM & ASME Standards.

Duplex 2205 is a two-phase, ferritic, austenitic 22% chromium, 3% molybdenum, 5 to 6% nickel alloyed stainless steel. It is the most widely used duplex stainless steel grade and is characterized by high yield strength, double that of the standard austenitic stainless steel grades. It also demonstrates good fatigue strength, as well as outstanding resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion in severe environments. Due to its high chromium, molybdenum, and nitrogen content, Duplex 2205 demonstrates superior corrosion resistant properties to 316 and 316L in most environments. Chromium, molybdenum, and nitrogen content also provide high resistance to pitting and crevice corrosion, even in oxidizing and acidic solutions

DUPLEX STEEL UNS S31803 BOLTS CHEMICAL PROPERTIES

C Mn Si P S Cr Mo Ni N
2205
(S31803)
0.03
max
2.0
max
1.0
max
0.03
max
0.02
max
min: 21.0
max: 23.0
min: 2.5
max: 3.5
min: 4.5
max: 6.5
min: 0.08
max: 0.20
2205
(S32205)
0.03
max
2.0
max
1.0
max
0.03
max
0.02
max
min: 22.0
max: 23.0
min: 3.0
max: 3.5
min: 4.5
max: 6.5
min: 0.14
max: 0.20

DUPLEX STEEL UNS S31803 BOLTS MECHANICAL PROPERTIES

Grade Tensile Strength
ksi (min)
Yield Strength
0.2% ksi (min)
Elongation % Hardness (HB) MAX
2205 90 65 25 217

Products List