The following specifications are generally applicable: Sheets & Plates: AMS 5513, ASTM A 167, ASTM A 240 Bars: AMS 5639, ASTM A 276, ASTM A 479
Used where corrosion resistance and good mechanical properties are primary requirements. These grades are widely accepted in such industries as dairy, beverage, and other food products where the highest degree of sanitation and cleanliness is of prime importance. Pharmaceutical manufacturing, braces, tanks, frames to support equipment.
Types 304 and 304L show good resistance to corrosion. They are highly resistant to strong oxidizing acids, such as nitric acid, and resist attack by a wide variety of organic and inorganic chemicals. Maximum corrosion resistance is obtained in the annealed condition.
RESISTANCE TO SCALING
Excellent scale resistance at temperatures up to 1600ºF in continuous service. Chromium-nickel grades have a high coefficient of expansion, which should be considered in designing.
Easily welded by all the commercial processes except forging or hammer welding. The resulting weld had good toughness and ductility. Annealing is recommended after welding to maintain maximum corrosion resistance.
These grades have very good drawing and stamping properties.
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