YB/T 6447-2026 Pending Industry standards-Black metallurgy

YB/T 6447-2026 Non-quenched and tempered dual-phase cold heading steel wire rod for high-strength fasteners

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 6447-2026

Standard Type: Industry standards

Standard Status: Pending

is_force_gb: no

CCS Name: Steel shapes and special-shaped steel

ICS Name: \nSteel rods and steel bars

Publish Date: 2026-04-16

Implement Date: 2026-11-01

Scope

This document specifies the terms and definitions, grade designation methods, order content, manufacturing process, technical requirements, test methods, inspection rules, packaging, marking, and quality certificates for non-quenched and tempered duplex cold heading steel wire rod used in high-strength fasteners. This document is applicable to the manufacture of high-strength fasteners such as bolts, screws, and studs, and cold heading steel wire with a nominal diameter of 5mm to 28mm.