T/CISA 345-2024 Active Group standards

T/CISA 345-2024 Technician Specification for Hot Galvanizing-5% Aluminum-Rare Earth Alloy Layer of Fastener Material

Publish Date: 2024-01-05 Implement Date: 2024-05-01 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: T/CISA 345-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Metallurgy

ICS Name: Wire, steel wire rope, and link chains

Publish Date: 2024-01-05

Implement Date: 2024-05-01

Scope

Main technical content: This document specifies the material, process, dimensions, and certain characteristics of M18~M64 steel coarse-threaded fasteners, bolts, screws, and studs with a performance grade up to 10.9, as well as nuts with a performance grade up to 12. The hot-dip galvanized-5% aluminum-rare earth alloy layer is also specified. For threaded fasteners with a specification smaller than M8 and/or a pitch smaller than 1.25mm, it is not recommended to use hot-dip galvanized-5% aluminum. This document is primarily applicable to hot-dip galvanized-5% aluminum steel threaded fasteners, but it is also applicable to other steel threaded parts. The technical conditions given in this document are also applicable to steel non-threaded parts, such as washers.