Alloy 20

Description:

Alloy 20 is a highly alloyed iron-base nickel-chromium-molybdenum stainless steel developed primarily for use in the sulfuric acid related processes. Besides sulfuric acid related processes, some typical corrosion resistant applications for the alloy include chemical, pharmaceutical, food, plastics, synthetic fibers, pickling and FGD systems plus many others. The high nickel content combined with chromium, molybdenum, and copper gives the alloy good resistance to pitting and chloride-ion stress-corrosion cracking. The copper content combined with other elements gives the alloy excellent resistance to sulfuric acid corrosion under a wide variety of conditions. The addition of columbium stabilizes the heat affected zone carbides so the alloy can be used in the as-welded condition. Alloy 20 has good mechanical properties and exhibits relatively good fabricability. Corrosion Materials specializes in the supply of Alloy 20 bar from inventory. We stock a wide range of sizes from 3/16" to 11" diameter and 5/8" to 1-1/4" hex bar. Material can be supplied in random lengths, cut to order or machined to customer requirements. Machining includes drilling, turning, tapping, threading, CNC shapes, flanges, etc.

Chemical Composition: