Jis G3539 Pdf Link

Predominantly used in automotive manufacturing, construction, and pump or valve engineering. Material Classifications and Grades

The performance of JIS G3539 steel depends heavily on tight control over alloying elements. Impurities like phosphorus and sulfur are strictly minimized to prevent internal tearing during cold forming. Carbon (C) % Silicon (Si) % Manganese (Mn) % Phosphorus (P) max % Sulfur (S) max % 0.08 – 0.13 0.30 – 0.60 SWCH35K 0.32 – 0.38 0.10 – 0.35 0.60 – 0.90 SWCH45K 0.42 – 0.48 0.10 – 0.35 0.60 – 0.90 4. Mechanical Properties and Microstructure

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Surface defects are amplified during cold forging. A minor scratch can expand into a catastrophic split during heading. Therefore, JIS G3539 enforces stringent quality benchmarks. Surface Decarburization

The Japanese Industrial Standard specifies carbon steel wires intended for cold heading and cold forging . These wires are primarily used to manufacture various fasteners and components, such as bolts, nuts, rivets, and machine screws. Scope and Application Carbon (C) % Silicon (Si) % Manganese (Mn)

stands for S teel W ire for C old H eading.

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Complete Guide to JIS G3539: Specifications, Applications, and Sourcing carbon steel wires for cold heading and cold forging

Pins, joints, shafts, and specialized cold-forged connectors.

Yes. Most recent revisions of JIS G3539 have an official English translation. When buying, select the “English” language option from JSA or resellers.