Stainless 434

Annealing Procedure

Soak thoroughly at 1450-1600 F, air cool.

Applications

Primarily used in automotive trim applications and other exterior environments.

Forgeability

Begin forging after thorough soaking at 2000-2100 F and finish at 1350 F.

Formability

Excellent ductility allows a wide variety of successful forming operations including shearing, blanking and deep drawing.

Hardening Procedure

This alloy does not respond to hardening by heat treatment.

Machinability

Although not commonly available in machinable forms, 434 has been successfully machined using all standard methods.

Principle Design Features

Similar in chemistry and performance to 430 stainless steel, 434 has the addition of molybdenum to increase its resistance to corrosion. The alloy combines a ferritic structure with good fabricability and strength characteristics.

Weldability

434 can be successfully welded using most common methods. Standard type 308 filler material may be used, although if the part will undergo thermal cycling, it is recommended to use a filler material of similar composition. Material must be thoroughly cleaned after welding for maximum corrosion resistance.

Known Forms

Angle

Angle

Channel

Channel

Coil

Coil

Disc

Disc

Flat Bar

Flat Bar

Foil

Foil

Hexagon Bar

Hexagon Bar

Hollow Bar

Hollow Bar

Pipe

Pipe

Plate

Plate

Precision Ground Bar

Precision Ground Bar

Rectangle Tube

Rectangle Tube

Ring

Ring

Rod

Rod

Round Bar

Round Bar

Round Tube

Round Tube

Sheet

Sheet

Square Bar

Square Bar

Square Tube

Square Tube

Standard Beam

Standard Beam

Strip

Strip

Tee

Tee

Additional Data

Specifications

434,1.4113,S43400

Chemical Elements

Carbon0.05 max
Chromium17 nom
IronBalance
Manganese0.5 max
Molybdenum1 nom
Phosphorus0.03 max
Silicon0.5 max
Sulphur0.01 max

Physical Properties

Density: 0.277lb/in³Density

Melting Point: 2750°FMelting Point

Specific Gravity: 7.65Specific Gravity

Specific Heat: 0.11BTU/lb·°FSpecific Heat

Thermal Expansion

ConditionMinMaxExpansion Coefficient
Annealed70 °F212 °F5.7 μin/in·°F
Annealed70 °F932 °F6.2 μin/in·°F
Annealed70 °F1450 °F6.6 μin/in·°F