This standard specifies the scope, terms and definitions, ordering information, dimensions, shape, weight and tolerances, technical requirements, test methods, inspection rules, packing, marking and quality certificate of free-cutting structural steels. This standard is applicable to steels such as bar steels, wire rods, steel wires, steel plates, and steel strips that are used for mechanical machining. Their chemical compositions are also applicable to ingots, billets and their products.
Basic Data
Standard ID
GB/T 8731-2008 (GB/T8731-2008)
Description (Translated English)
Free-cutting structural steel
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
H40
Classification of International Standard
77.140.01
Word Count Estimation
16,138
Date of Issue
2008-09-11
Date of Implementation
2009-05-01
Older Standard (superseded by this standard)
GB/T 8731-1988
Regulation (derived from)
National Standard Approval Announcement 2008 No.16 (Total No.129)
Issuing agency(ies)
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary
This standard specifies the range of cutting structural steel, terminology and definitions, ordering content, dimensions, shape, test methods, , weight and tolerance, technical requirements for inspection rules, packaging, marking and quality certification. This standard applies to the mechanical machining of steel used, rod, wire, steel sheet and strip steel products, such as its chemical composition applies equally ingots, blanks and its products.
