Stainless Steel, Nickel and Copper Alloys—Carpenter Technology

TABLE 5.32 STAINLESS STEEL, NICKEL AND COPPER ALLOYS-CARPENTER TECHNOLOGY 

This table shows the resistance of a number of materials to the more common chemicals. Many factors influence the resistance of materials to various solutions. Factors which must be given consideration for service in corrosive environments are temperature, concentration, aeration, influence of inhibiting or accelerating contaminants, influence of re-circulation, solids in suspension, velocity, frequency of use. and equipment design. 

The influence of contaminants is probably the most important from a commercial standpoint. Few corrosive solutions will be free of all contaminants. The majority of these contaminants have no influence on corrosion, but those that do generally affect the conditions greatly. 

The corrosion data for all grades except Carpenter 20Cb-3 stainless is reprinted from Corrosion Data Survey, 1974 Edition, published by the National Association of Corrosion Engineers. The corrosion rates for Carpenter 20Cb-3 stainless represent a composite of the NACE Corrosion Data Survey and more current data developed in Carpenter s Corrosion Laboratory. 

---