Duplex Washers

TorqBolt stocks highly corrosion resistant Duplex Washers. 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

£0.08 - £321

Duplex 2205 Washers

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

Specifications

ASTM A240 Type 32205

ASME SA240 Type 32205

Typical Properties

Tensile - 655 (Mpa) Min

Yield - 485 (Mpa) Min

Elongation - 25 Min

Reduction - 45 Min

SKU: 10010349
£0.1 - £441

Duplex S31803 Washers

UNS S31803, BS2377, DIN 1.4470, 318S13

Specifications

ASTM A240 Type 31803

ASME SA240 Type 31803

Typical Properties

Tensile - 620 (Mpa) Min

Yield - 450 (Mpa) Min

Elongation - 25 Min

Reduction - 45 Min

SKU: 10010344