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Alloy 400 Plates


Champak Industries is one reputed stockiest and Supplier of Alloy 400 plates or Alloy 400 in the annealed condition in thicknesses from 3/16" (4.8mm) through 3" (76.2mm). Alloy 400, in the annealed condition, shown moderate strength. The alloy is also available in the as-rolled condition (Alloy 400AR) which imparts higher strength to the alloy. Alloy 400AR is stocked in thicknesses from .1875" through 3.00".

Available thicknesses for Alloy 400

3/16" 1/4" 3/8" 1/2" 5/8" 3/4" 1"
4.8mm 6.3mm 9.5mm 12.7mm 15.9mm 19mm 25.4mm
1 1/4" 1 1/2" 1 3/4" 2" 2 1/2" 3"
31.8mm 38.1mm 44.5mm 50.8mm 63.5mm 76.2mm
Alloy 400 (UNS N04400) is a ductile nickel-copper alloy with resistance to a spread of corrosive conditions. The alloy is most frequently laid out in environments starting from mildly oxidizing through impartial and in moderately reducing conditions. An additional application place of the material is in marine environments and different non-oxidizing chloride answers.

Applications

• Chemical Processing Equipment – in fluorine, hydrofluoric acid, hydrogen fluoride, hydrochloric acid, sulfuric acid, neutral and alkaline salt solutions, caustic alkalies, non-oxidizing halides and dry chlorine service.

• Marine Components – shipbuilding, valves, pumps, shafts and in sea and brackish water

• Oil and Gas Production – splash-zones for offshore structures and sour gas applications

• Ore Processing – uranium refining and separation in the production of nuclear fuels

• Petroleum Refining – alkylation units, crude petroleum stills, piping and storage tanks

• Power Generation – feed-water heaters and steam generators

• Water Treatment – brine heaters and evaporators in seawater desalination plants

Standards

ASTM..................B 127
ASME..................SB 127
AMS ...................4544
Federal............... QQ-N-281

Chemical Analysis

Weight % (all values are maximum unless a range is otherwise indicated)

Nickel (plus Cobalt) 63.0 min.-70.0 max. Iron 2.50
Copper 28.0 min.-34.0 max. Sulfur 0.024
Carbon 0.3 Silicon 0.5
Manganese 2.0

Mechanical Properties

Nominal Room-Temperature Mechanical Properties of Alloy 400 and 400AR

FORM AND CONDITION Yield Strength
0.2% Offset
Tensile Strength Elongation, % Hardness
ksi MPa ksi MPa Brinell
(3000-kg)
Rockwell
B
Plate
Hot-Rolled, As-Rolled 40-75 276-517 75-95 517-655 45-30 125-215 70-96
Hot-Rolled, Annealed 28-50 193-345 70-85 482-586 50-35 110-140 60-76
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