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CA40 Stainless Steel Data Sheet



Cast Stainless Steel CA40

 

Type CA40 is an iron-chromium alloy similar to type CA15, but its higher carbon content permits hardening this grade to a maximum of about 500 BHN. Corrosion resistance and other characteristics are about the same as for the lower carbon CA15 alloy. 

Chemical Composition

 

A743 CA40, UNS J91153, AISI 420, DIN 1.4028 X30Cr13

Equivalent Grades

1500

Melting Point(oC)

Annealing at 840 to 900°C and slowly furnace cooled

Hardening by heating to 980 to 1010°C and cooling in oil or air. Castings should be tempered 600 to 820°C)

 

Heat Treatment

185-500

Hardness (HB)

410 or 420

Welding Electrode

     200 - 320

Welding Preheating(oC)

Gas Porosity-Crack

Common Possible Casting Defects

 

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