This standard specifies the steel dimensions, shape, weight and permissible tolerances, technical requirements, test methods, inspection rules, packaging, sign and quality certificate etc. of the hot rolling and hot forging structural steels subject to end-quench hardenability requirements. This standard is applicable to the hot rolling and forging structural steel bars of hardenability used in machinery manufacture with its diameter or thickness no less than 30 mm. The steel hardenability is determined by edge quenching or calculated by the formula.
Basic Data
Standard ID
GB/T 5216-2004 (GB/T5216-2004)
Description (Translated English)
Structural steels subject to end-quench hardenability requirements
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
H40
Classification of International Standard
77.140.20
Word Count Estimation
43,486
Date of Issue
2004-01-19
Date of Implementation
2004-07-01
Older Standard (superseded by this standard)
GB/T 5216-1985
Regulation (derived from)
Announcement of Newly Approved National Standards No. 2 of 2004 (total 64)
Issuing agency(ies)
State Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China China National Standardization Administration Committee
Summary
This standard specifies: hot-rolled and hot mounting guaranteed hardenability structural steel for size, shape, weight and tolerances, technical requirements, test methods, inspection rules, packaging, marking and quality of the certificates. This standard applies to: Mechanical applicable diameter or thickness not less than 30mm-guarantee pure Permeability hot-rolled and hot forged steel bars. Measured or calculated according to the formula juice Jiong by end quenching method hardenability.
