GB/T 11981-2024 in English

VALID

Steel furring for building

Issued on:2024-10-26
Implemented on:2025-05-01
File Format:PDF
Delivery:Via email within 5 business days

Price(USD)： $370.00
$359.00

Standard No:	GB/T 11981-2024
Document status:	VALID
Title in English:	Steel furring for building
Title in Chinese:	建筑用轻钢龙骨
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 5 business days
Issued on:	2024-10-26
Implemented on:	2025-05-01
Superseding:	GB/T 11981-2008 Steel furring for building
ICS Classification:	91.060-Elements of buildings
Chinese Classification:	Q73-Metal components and accessories
Professional Classification:	GB-National Standard
Related Keywords:	light steel keels light steel keel color-coated steel sheets hot-dip galvanized steel sheets steel

《GB/T 11981-2024建筑用轻钢龙骨》由TC195（全国轻质与装饰装修建筑材料标准化技术委员会）归口，主管部门为中国建筑材料联合会。

Introduction

GB/T11981-2024 Standard Overview

GB/T11981-2024 "Light Steel Keel for Construction" is an important standard for the construction industry, which comprehensively regulates the classification, technical requirements and test methods of light steel keels. This version of the standard has made many updates to the old version, including terminology adjustment, classification integration and the addition of F-type ceiling keels.

Comparison of major changes

Old version requirements	New version updates	Impact analysis
Delete the definition of terms for keels with different cross-sectional shapes	Add a new classification of F-type ceiling keels	Enriched product variety and improved applicability
Requirements for thickness of double-sided galvanized layer	Increased raw material performance requirements	Improve product quality and durability
Salt spray resistance test method	Updated to neutral salt spray test, extended to 48 hours	Enhanced anti-corrosion capability verification

Technical indicators interpretation

The new standard has stricter technical requirements for light steel keels, with the following highlights:

Raw materials: Hot-dip galvanized steel sheets that meet GB/T2518 or color-coated steel sheets that meet GB/T12754 must be used.
Dimensional accuracy: Length deviation, section size deviation and thickness tolerance are specified to ensure product consistency.
Mechanical properties: Static load and impact resistance test requirements for ceiling keel components are added to ensure structural safety.
Surface rust prevention: The double-sided galvanizing amount is increased to 100g/m², and coating hardness testing is added.

Implementation Suggestions

Actual Application Case:

A construction project adopted the new standard to select light steel keels. By optimizing raw material procurement and strict quality inspection, the durability and safety of the wall and ceiling systems were significantly improved. It is recommended that enterprises:

Strengthen the inspection of incoming raw materials to ensure compliance with the new standard requirements.
Update the production process to adapt to the classification and specification changes of new keels.
Strengthen quality control, especially in mechanical properties and anti-corrosion testing.

More samples: QC/T 942-2021 JJG 21-2008 GB 18306-2015

Sample only — not a preview of GB/T 11981-2024