Alloy 20 Nickel Tubing

Alloy 20 Nickel Tubing

Alloy 20 is a nickel-chromium-molybdenum alloy developed for applications involving sulfuric acid. Its corrosion resistance also finds other uses in the chemical, food, pharmaceutical, power generation and plastics industries. Alloy 20 nickel tubing resists pitting and chloride ion corrosion and its copper content protects it from sulfuric acid.

Typical applications include tanks, piping, heat exchangers, pumps, valves.

SKU Description Manufacture Method OD Wall Specification
46358 SMLS ALLOY 20 B729 1/2 OD X .035 WA SEAMLESS & DRAWN 0.5000 0.0350 ASTM B729 ASME SB729

Stock Size Range:

Welded product

Seamless product

OD: .125" OD through 1" OD
OD: .375" through 1" OD
Walls: .035" through .109" wall
Walls: .035" through .065"
Specifications: ASTM B729, ASME SB729
Specifications: ASTM B468, ASME SB468

 

Typical Chemical Composition % (max values, unless noted)
Nickel 32.0-38.0
Chromium 19.0-21.0
Iron Remainder
Molybdenum 2.0-3.0
Sulfur .035 max
Carbon 0.07 max
Manganese 2.0 max
Silicon 1.00 max
Phosphorous .045 max
Copper 3.0-4.0
Nb+Ta 8 X C-1.0

 

Typical Mechanical Properties
Annealed KSI MPA
Yield Strength (0.2% offset) 35 ksi 241
Tensile Strength 80 ksi 551
Elongation % in 2" 30.0