タグアーカイブ：A27A27M

          Commonplace Specification for Metal Castings, Carbon, for Common Software1 This customary is issued beneath the fastened designation A27/A27M; the quantity instantly following the designation signifies the 12 months   of unique adoption or, within the case of revision, the 12 months of final revision. A quantity in parentheses signifies the 12 months of final reapproval. A superscript epsilon (´) signifies an editorial change since the final revision or reapproval. This customary has been authorized to be used by companies of the Division of Protection.     1.     Scope* 1.1    This specification covers carbon metal castings for gen- eral functions that require as much as 70 ksi (485 MPa) minimal tensile energy. NOTE 1—The grades coated by this specification signify supplies which are appropriate for meeting with different metal castings or wrought […]