GB/T 4227-1984
abolished_transferred
YB/T 4972-2022
Active
Industry standards-Black metallurgy
YB/T 4972-2022 Heated-rolled H-beams are used for the steel structure of boilers
YB/T 4972-2022 Heated-rolled H-beams are used for the steel structure of boilers
Basic Information
Standard Code:
YB/T 4972-2022
Standard Type:
Industry standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Steel shapes and special-shaped steel
ICS Name:
Steel sections
Publish Date:
2022-09-30
Implement Date:
2023-04-01
Scope
This document specifies the terms and definitions, order content, code, dimensions, shape, weight, and allowable deviations, technical requirements, test methods, inspection rules, numerical rounding, packaging, marking, and quality certificates for hot-rolled H-section steel used in boiler steel structures. This document is applicable to hot-rolled H-section steel used in boiler steel structures.
Development Information
Related Standards
GB 702-1986
Abolished
GB 702-1986 Hot-rolled round and square steels—Dimension, shape, weight and tolerance
GB/T 6723-1986
Replaced
GB/T 6723-1986 Cold forming sectional steel—Open sectional steel for general structure—Demension, form, weight and permissible deviations
GB/T 6726-1986
Replaced
GB/T 6726-1986 Cold forming sectional steel for cargo vehicle—Demension, form, weight and permissible deviations
GB/T 6727-1986
Replaced
GB/T 6727-1986 Cold forming sectional steel for passenger vehicle—Demension, form, weight and permissible deviations
GB/T 8649-1988
Abolished