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Cast Stainless Steel CA6NM



Cast Stainless Steel  CA6NM

 

Type CA6NM is a Fe-Cr-Ni-Mo alloy. The alloy could be hardened by heat treatment. It is similar in general corrosion resistance to type CA15, but the addition of nickel and molybdenum to the CA6NM composition improves its resistance to attack by sea water. Although the tensile strength properties of CA6NM are comparable to those of CA15, the impact strength is about twice as high, as is the resistance to damage from cavitation effects.

chemical composition

 

ASTM A743  A757 (E3N) A487 A352 DIN 1.4313 GX5CrNi13 4

Equivalent Grades

1490

Melting Point(oC)

The alloy is hardened by heating between 1040 to 1070°C followed by cooling in either air or oil. After the castings have cooled below the martensite finish temperature, which varies with the compositional balance, they should be tempered.The alloy is tempered at 590 to 620°C).Tempering in the vicinity of 480°C should be avoided because lower toughness will result.

Heat Treatment

285-400

Hardness (HB)

Same composition

Welding Electrode

100-180

Welding Preheating(oC)

Gas Porosity, chemical composition due to Carbon content

Common Possible Casting Defects

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          EMC     is one of the  leading foundry companies in Iran based in Isfahan . The company is well known for its pioneering role in producing many cast parts for the first time inside the country           

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