Duplex Bolts

TorqBolt stocks highly corrosion resistant Duplex Bolts. Duplex (austenite-ferrite) stainless steel is 40-50% ferrite in annealed conditions. It has crevice cracking resistance even higher than those of 304, 316L 317L also it has yield strengths higher or almost double than those austenite steels. However, this steel cannot be used for temperatures above 600 Degrees Fahrenheit. Some of its applications include pressure vessel tanks, piping, and heat exchangers in chemical Industry, paper industry, and cargo tanks of shipping industries and mainly in biofuel plants.

Duplex Steel Grades

£0.8 - £1850

Duplex 2205 Bolts

UNS S32205, BS2338, DIN 1.4462, X2CRNIMON22-5-3, 318S13

Specifications

ASTM A182 / A479 F60

ASME SA182 / SA479 F60

EN 3506-1 E1

Typical Properties

Tensile - 655 (Mpa) Min

Yield - 485 (Mpa) Min

Elongation - 25 Min

Reduction - 45 Min

SKU: 10010127
£0.31 - £1900

Duplex S31803 Bolts

UNS S31803, BS2377, DIN 1.4470, 318S13

Specifications

ASTM A182 / A479 F51

ASME SA182 / SA479 F51

EN 3506-1 E1

Typical Properties

Tensile - 620 (Mpa) Min

Yield - 450 (Mpa) Min

Elongation - 25 Min

Reduction - 45 Min

SKU: 10010122