GB/T 3821-1983
Replaced
GB/T 1149.12-2023
Active
National standards
GB/T 1149.12-2023 Internal combustion engines—Piston rings—Part 12:Half keystone rings made of steel
GB/T 1149.12-2023 Internal combustion engines—Piston rings—Part 12:Half keystone rings made of steel
Price:
$ 93
Basic Information
Standard Code:
GB/T 1149.12-2023
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
The body and moving parts
ICS Name:
Internal combustion engine
Publish Date:
2023-12-28
Implement Date:
2024-07-01
Pages:
28 pages
Scope
This document specifies the basic dimensional characteristics of the wedge-shaped steel piston rings with model numbers HK, HKB, and HKBA (hereinafter referred to as wedge-shaped steel rings).
This document is applicable to wedge-shaped steel rings used in reciprocating piston internal combustion engines with a cylinder diameter of 50 mm to 160 mm.
Development Information
Same series standard
Replace the following standards
Referenced Standards
ISO 6621-4
Adopt standards
ISO 6624-4:2016
Related Standards
GB/T 1147-1987
Replaced
GB/T 1147-1987 Reciprocating internal combustion engines—General technical specifications
GB/T 725-1991
Replaced
GB/T 725-1991 Internal combustion engines—Nomenclature and code of designations
GB/T 1149.3-1992
Replaced
GB/T 1149.3-1992 Internal combustion engines—Piston rings-Scraper rings
GB/T 1149.5-1992
Replaced
GB/T 1149.5-1992 Internal combustion engines—Piston rings-Oil control rings
GB/T 1151-1993
Replaced