Range attributes Brinell Hardness 270 to 320 Elongation 1 % strain (minimum) Ultimate Tensile Strength 800 MPa (minimum) Yield Strength 600 MPa (minimum) Discrete attributes ~Checking Status Not verified - Original build Date Last Checked Thursday, October 17, 2013 Alloy Family Cast Iron and Iron Alloys Alloy Group Cast Iron Alloy Sub-Group Blackheart Available forms Casting Base Element Fe (Iron) Country International Material Class Ferrous Alloy Source Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006 Specification Status Active Specification Type Standard Standards Body ISO (International) Short text attributes Country* International Description_old Blackheart malleable cast iron for castings; 12 or 15 mm diameter; oil quenched and subsequently tempered. Designation ISO5922/JMB/800-1 Specification ISO 5922 Specification Status Notes active 2005 Long text attributes Description Blackheart malleable cast iron for castings; 12 or 15 mm diameter; oil quenched and subsequently tempered. Integer attributes Specification Year 2005 Further Information Organizations International Organization for Standardization (ISO)
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Range attributes

270 to 320