Jis G3539 Pdf Updated May 2026

JIS G 3539 is the Japanese Industrial Standard for carbon steel wires for cold heading and cold forging. It specifies the requirements for wires used to manufacture various fasteners and parts, such as bolts, nuts, and rivets, through room-temperature forming processes. Core Specifications

Key Advantage: The cold-working process improves the grain structure, making the final fastener stronger. 🛠️ Technical Specifications jis g3539 pdf

3. Quality Control & Testing

The standard details specific test methods for tensile strength, reduction of area, and surface defects. The PDF serves as a reference for your QC lab. JIS G 3539 is the Japanese Industrial Standard

Applications and Industries

Key Aspects of JIS G3539

• Scope: Covers zinc-coated (galvanized) round steel wires with diameters typically ranging from 0.8 mm to 4.0 mm, used primarily for armoring optical fiber cables.
• Material Requirements: Specifies chemical composition, tensile strength, elongation, and coating mass.
• Coating Types: Includes both pre-galvanized and after-galvanized (drawn) wires, with distinct requirements for coating uniformity and adhesion.
• Testing Methods: Defines tests for coating weight (e.g., gravimetric method), bend testing, and wrapping tests to ensure flexibility and adhesion.