Stainless 203 EZ

Annealing Procedure

1900 F (1038 C), water quench.

Applications

Screw machine parts including valve components, automotive and electronic hardware.

Cold Workability

Cold working will result in substantial increases in magnetic permeability and hardness. It should therefore be subjected to only minor deformation.

Hardening Procedure

This alloy does not respond to heat treatment. Hardening can be performed through cold reduction only.

Hot Workability

Heat thoroughly to 2200 F. Do not work below 1750 F. Large sections should be air cooled and annealed while smaller sections may be water cooled.

Machinability

Easily machined using all common methods. Chips break easily due to the high concentration of sulfur.

Principle Design Features

NO LONGER COMMERCIALLY AVAILABLE - An alternative to type 303 stainless, this alloy substitutes high manganese and copper for nickel, resulting in a low magnetic permeability in a stable austenitic structure. Resistant to scaling in temperatures up to 1550 F. This alloy should not be used to contain gases or liquids under high pressure.

Weldability

Not recommended for welding due to its high sulfur content.

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

5762,A581 (XM-1),A582 (XM-1),S20300

Chemical Elements

Carbon0.08 max
Chromium16 - 18
Copper1.75 - 2.25
IronBalance
Manganese5 - 6.5
Molybdenum0.5 max
Nickel5 - 6.5
Phosphorus0.04 max
Silicon1 max
Sulphur0.18 - 0.35

Physical Properties

Density: 0.285lb/in³Density

Electrical Resistivity: 435µΩ·cmElectrical Resistivity

Specific Gravity: 7.85Specific Gravity

Specific Heat: 0.12BTU/lb·°FSpecific Heat

Thermal Expansion

ConditionMinMaxExpansion Coefficient
Annealed32 °F1200 °F11.2 μin/in·°F