Stainless
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
Channel
Coil
Disc
Flat Bar
Foil
Hexagon Bar
Hollow Bar
Pipe
Plate
Precision Ground Bar
Rectangle Tube
Ring
Rod
Round Bar
Round Tube
Sheet
Square Bar
Square Tube
Standard Beam
Strip
Tee
Additional Data
Specifications
434,1.4113,S43400Chemical Elements
| Carbon | 0.05 max |
| Chromium | 17 nom |
| Iron | Balance |
| Manganese | 0.5 max |
| Molybdenum | 1 nom |
| Phosphorus | 0.03 max |
| Silicon | 0.5 max |
| Sulphur | 0.01 max |
Physical Properties
Density: 0.277lb/in³
Melting Point: 2750°F
Specific Gravity: 7.65
Specific Heat: 0.11BTU/lb·°F
Thermal Expansion
| Condition | Min | Max | Expansion Coefficient |
|---|---|---|---|
| Annealed | 70 °F | 212 °F | 5.7 μin/in·°F |
| Annealed | 70 °F | 932 °F | 6.2 μin/in·°F |
| Annealed | 70 °F | 1450 °F | 6.6 μin/in·°F |