General Description

Alloy 20 is a iron based nickel-chromium-molybdenum stainless steel developed to withstand sulfuric acid. The high nickel content combined with chromium, molybdenum and copper gives the alloy excellent resistance to intergranular corrosion and stress corrosion and good resistance to pitting and crevice corrosion.

Alloy 20 is used in wide applications up to temperatures of around 500℃. Such as equipments for the manufacturer of sulphuric acid and for processed based on sulphuric acid, production of plastics and synthetic fibers, and equipments for food processing to protect against contamination.

Chemical Composition

Grade Fe% Ni% Cr% Mo% Mn% Cu% Si% C% S% P% Cb+Ta%
Alloy 20 Bal. 32.5-35.0 19.0-21.0 2.0-3.0 Max 2.0 3.0-4.0 Max 1.0 Max 0.06 Max 0.035 Max 0.035 8×C-1.0

Specifications

Grade UNS Werkstoff
Alloy 20 N08020 2.4660

Physical Properties

Grade Density
Alloy 20 8.1 g/cm3

Mechanical Properties

Condition Tensile Strength Yield Strength σp0.2/MPa Elongation
 
Solution annealed Min 600 Mpa Min 320 Mpa Min 35%

Our Production Standard

Standard Bar Forging Sheet/Plate Tube/Pipe Fittings
ASTM ASTM B473 ASTM B462 ASTM B463 ASTM B729 ASTM B366

Size Range

Alloy bar, rod, forging, plate, sheet, pipe, fittings are available.

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