Standard Specification for Compacted Graphite Iron Castings (Includes all amendments and changes 10/7/2022).
NORMA vydaná dňa 1.10.2022
Označenie normy: ASTM A842-11A(2022)e1
Dátum vydania normy: 1.10.2022
Počet strán: 5
Približná hmotnosť: 15 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
This specification deals with compacted graphite iron castings. These materials shall be examined metallographically for the acceptance graphite formation. The acceptable graphite formation in the microstructure of the test coupon or casting lug shall contain 80% minimum Type IV graphite. The iron shall conform to the requirements for tensile properties: tensile strength, yield strength, and elongation. Test bars and test coupons shall be cast in dried, baked, or chemically bonded molds consisting of an aggregate of silica sand with appropriate bonders and shall be subjected to the same thermal treatment as the castings they represent.
Keywords:
ICS Number Code 77.080.10 (Irons),77.140.80 (Iron and steel castings)