Properties of 304 stainless steel wafers and foils
Type 304 and 304 L Stainless Steel
304 Stainless Steel (SS) is an austenitic stainless steel with Face Centered Cubic (F.C.C.) atomic structure which provides numerous planes for the movement of dislocations. This inherent property, combined with the low level of interstitial elements (elements which lack the dislocation chain), gives this material high ductility, low yield stress and relatively high ultimate tensile strength.
As steel is heated above critical temperature (approx. 1335 F) it undergoes a phase change, recrystallizing as austenite. Continued heating to approx. 1450 - 1500F assures complete conversion to austenite. The high chrome and nickel content of austenitic stainless steel suppresses the transformation on cooling to a ferrite/cementite, keeping the material fully austenite, as well as rendering it essentially non-magnetic in the annealed condition. This gives austenitic stainless steels excellent cryogenic properties, good high-temperature strength and oxidation resistance. Excellent corrosion resistance, non-magnetic properties and exceptionally high toughness at all temperatures make these steels suitable for a wide variety of applications.
Physical Properties of 304 SS Wafers and Foils
Coefficient of Thermal Expansion
Tensile and Yield Strength
Modulus of Elasticity, Annealed: 29,000 KSI
Type 304 Stainless Steel Chemnistry % by Weight
The lower carbon in Type 304 L has lower corrosion rate than the higher carbon type 304 alloy when exposed to formic acid, sulfuric acid and Sodium Hydroxide.
Other related web pages:
Return to Home Page: Stainless steel substrates, wafers and optics
Valley Design East
Phoenix Park Business Center
2 Shaker Road, Bldg. E-001
Shirley, MA 01464
Valley Design West
Santa Cruz, CA 95060