ISO 185/JL/350 is a higher-tensile-strength gray cast iron that has a pearlitic matrix, and a tensile strength of 350–450 MPa (51–65 ksi), when determined on test pieces machined from separately cast, 30 mm (1.2 in.) diameter test bars. It provides a combination of high strength while still maintaining good thermal conductivity compared with other types of cast iron. This grade approaches the maximum tensile strength attainable in gray cast iron. Applications therefore tend to be confined to those where thermal conductivity requirements in service preclude the use of one of the other higher-strength materials such as spheroidal graphite cast irons, which have inferior thermal properties. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on wear resistance as well as casting and heat treating. Filing Code: CI-85. Producer or source: International Organization for Standardization.

ISO 185/JL/250 is an intermediate-tensile-strength gray cast iron that has a pearlitic matrix and a tensile strength of 250–350 MPa (36–51 ksi), when determined on test pieces machined from separately cast, 30 mm (1.2 in.) diameter test bars. Compared with the lower strength gray cast iron grades, ISO 185/JL/250 contains lower carbon and silicon contents and has superior wear resistance, while still maintaining good thermal conductivity, damping capacity, and machinability. This datasheet provides information on composition, physical properties, and tensile properties as well as fatigue. It also includes information on casting and heat treating. Filing Code: CI-76. Producer or source: ISO Central Secretariat.

JSA FC350 is a higher-tensile-strength gray cast iron that has a pearlitic matrix, and a minimum tensile strength of 350 MPa (51 ksi), when determined on test pieces machined from separately cast, 30 mm (1.2 in.) diameter test bars. It provides high strength while still maintaining good thermal conductivity. This grade approaches the maximum tensile strength attainable in gray cast iron. Applications therefore tend to be confined to those where thermal conductivity requirements in service preclude the use of one of the other higher-strength materials such as spheroidal graphite cast irons, which have inferior thermal properties. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on casting, heat treating, and machining. Filing Code: CI-92. Producer or source: Japanese Standards Association (JSA).

Meehanite SFF350 is a ferritic ductile iron with a minimum tensile strength of 350 MPa (51 ksi) and a minimum elongation of 24%, when measured on test pieces machined from separately cast samples. It is specifically designed to provide good impact properties at low temperature. This fully ferritic Meehanite grade is produced from specially selected high purity raw materials and by subjecting the castings to an extended annealing heat treatment in order to fully develop the mechanical properties. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on heat treating and joinability. Filing Code: CI-90. Producer or source: Meehanite Metal Corporation.

Meehanite GA350 is a heat-treatable, pearlitic gray cast iron that exhibits high strength while still maintaining good thermal conductivity and good machinability. It is generally used for applications where the thermal conductivity requirements preclude the use of other higher-strength materials such as spheroidal graphite cast irons, which have inferior thermal properties. This datasheet provides information on physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on high temperature performance as well as casting, heat treating, machining, and joining. Filing Code: CI-72. Producer or Source: Meehanite Metal Corporation.