American Society for Testing and Materials (ASTM) cov kev cai yooj yim rau naming tooj liab thiab tooj liab alloys
American Society for Testing and Materials (ASTM) American tooj liab thiab tooj liab alloy qib tau qhia raws li hauv qab no: Nws yog tsim los ntawm thawj tsab ntawv loj ntawm tooj liab + 5 tus lej, uas yog, C + xxxxx (5 tus lej). Nws tau koom ua ke tsim los ntawm American Society for Testing and Materials (ASTM) thiab American Society of Enterprise Engineers (SAE) thiab tau los ua ib feem ntawm US Unified Numerical Designation System (UNS) rau hlau thiab alloys.
