YB/T 6439-2026 Pending Industry standards-Black metallurgy

YB/T 6439-2026 Stainless steel pre-embedded channel。

Publish Date: 2026-04-16 Implement Date: 2026-11-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: YB/T 6439-2026

Standard Type: Industry standards

Standard Status: Pending

is_force_gb: no

CCS Name: Iron and steel products

ICS Name: Steel sections

Publish Date: 2026-04-16

Implement Date: 2026-11-01

Scope

This document specifies the product models, materials, processing and manufacturing requirements, product quality requirements, inspection rules and methods, as well as marking, packaging, transportation, storage, etc. of stainless steel pre-embedded grooves. This document is applicable to stainless steel pre-embedded grooves used in infrastructure projects such as rail transit and urban comprehensive pipe galleries

Development Information

Related Standards

GB/T 4227-1984 abolished_transferred

GB/T 4227-1984 Hot rolled stainless steel with equal leg angles

Publish Date: 1984-03-26

GB 702-1986 Abolished

GB 702-1986 Hot-rolled round and square steels—Dimension, shape, weight and tolerance

Publish Date: 1986-06-07

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

Publish Date: 1986-08-22

GB/T 6726-1986 Replaced

GB/T 6726-1986 Cold forming sectional steel for cargo vehicle—Demension, form, weight and permissible deviations

Publish Date: 1986-08-22

GB/T 6727-1986 Replaced

GB/T 6727-1986 Cold forming sectional steel for passenger vehicle—Demension, form, weight and permissible deviations

Publish Date: 1986-08-22

GB/T 8649-1988 Abolished

GB/T 8649-1988 Rolling balls

Publish Date: 1988-02-05