18CRNIMO7-6+H

Table 1 gives example grades of case-hardening bearing steel; Clause 5.1 permits other compositions to be specified.; 5.2 Acceptance shall be based on the table values of the ordered grade or agreement between both parties. ; Heat analysis wt%; Table 1, Note D: Oxygen≤.0020% applies only to product analysis; no oxygen limit is shown in the default heat-analysis group.. ; The product-analysis group adds only the oxygen requirement in the original table.; Product-analysis tolerances for other elements require separate verification under A29/A29M; the heat-analysis limits have not been automatically expanded.. ; Note B: Calcium/calcium alloys shall not be intentionally added for deoxidation or inclusion morphology control without explicit approval from the purchaser. ; Note C: These ISO grades correspond to ISO683 Part 17 Third Edition Table 3/5; Only actual ASTM table values are verified in this round; +H is retained, and hardenability is not claimed to have been tested and qualified. ; Do not enter zero for elements shown as unspecified by a dash.; Use for case-hardened bearings does not establish availability as cold-heading wire..