Alloy 400 Technical Information
Robert-James Sales, Inc.
Robert-James Sales, Inc.
Technical Information
  Piping Definitions Tube Stainless Steel Alloys Specifications Conversion Calculators 

 
Alloys

Alloy 20
2205
Alloy C-276
317L
310S
321/321H
347/347H
254SMO
AL-6XN
6061 T6
904L
410
304/304L
316/316L
Alloy 200
Alloy 400
Alloy 600
Alloy 625
Alloy 800/800H/800HP
Alloy 825

Alloy 400

Chemical Composition %

C Cu Mn Ni S Si
Max   Max Min Max Max
0.15 28.0-34.0 1.25 63.0 0.02 0.50


AVAILABILITY

Seamless Pipe 1/2" - 8"
Weld Pipe 8" - 12"
Butt-Weld Fittings 1/2" - 8"
Flanges 1/2" - 8"
Bar 1" - 8"
Pressure Fittings 1/2" - 2"
150# Fittings 1/4" - 1"
Tubing 1/4", 3/8", 1/2"
Valves 1/2" - 12"

SPECIFICATIONS
ASTM
B165, B127, B366, B164, B564
ASME
SB165, SB127, SB366, SB164,S8564

DESCRIPTION
Alloy 400 is used for its excellent combination of corrosion resistance, strength, ductility and weldability The corrosion resistance in seawater is especially good under high velocity conditions. Alloy 400 also is generally not susceptible to stress corrosion cracking.

DESIGN FEATURES

• Outstanding resistance to neutral and alkaline salt.
• One of few metallic materials which can be used in contact with fluorine, hydrofluoric acid, hydrogen fluoride and their derivatives.
• High resistance to caustic alkalis.
• Can be used in contact with dilute solutions of mineral acids such as sulfuric and hydrochloric, particularly if they are nonaerated.
• Resistance to chloride induced stress corrosion cracking.
• Good mechanical properties from sub-zero temperatures up to 1020 deg.F.

TYPICAL APPLICATIONS
Feed-water and steam generator tubing in power plants
Brine heaters and evaporator bodies in salt plant
Sulfuric and hydrofluoric acid alkylation plant
Industrial heat exchangers
Cladding for crude oil distillation columns
Splash-zone sheathing in offshore structures
Propeller and pump shafts for seawater service
Plant for uranium refining and isotope separation in the production of nuclear fuel
Pumps and valves used in the manufacture of chlorinated hydrocarbons
Monoethanolamine (MEA) reboiler tubes

TENSILE REQUIREMENTS
Tensile Strength (KSI) 81
Yield Strength (KSI) 36

KSI can be converted to MPA (Megapascals) by multiplying by 6.895.

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Robert-James Sales, Inc.
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