T/CFA 010202.1-2017 Low-temperature high-impact resistance low-alloy structural cast steel parts
T/CFA 010202.1-2017 Low-temperature high-impact resistance low-alloy structural cast steel parts
Basic Information
Scope
Scope: The standard specifies the production and manufacturing, technical requirements, inspection rules, test methods, marking, storage, packaging, and transportation requirements for high-toughness low-alloy structural steel castings used in low-temperature environments. The standard applies to low-alloy structural steel castings with an impact absorption energy of not less than 42J at temperatures not lower than -20°C, and an impact absorption energy of not less than 27J at temperatures not lower than -40°C. Other low-alloy structural steel castings used in low-temperature environments can refer to and adopt this standard for reference. Main technical content: The standard specifies the smelting requirements, chemical composition, mechanical properties, heat treatment requirements, surface quality, shape and dimensional tolerances, welding repair requirements, and correction requirements for castings.