Wire is bent 180° around a mandrel of equal diameter. No cracks are allowed.
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Ideal for enterprise-level access and engineering compliance management. jis g3539 pdf
The standard details permissible variations in wire diameter and out-of-roundness (ovality). Precise diameters prevent tool wear and flashing during heading.
Precise dimensional tolerances for wire diameter. Wire is bent 180° around a mandrel of equal diameter
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This composition provides an excellent balance of strength and ductility for cold forming. Using outdated or counterfeit standards can lead to:
Controls the final strength and hardness after heat treatment.
Given the typographical proximity (3539 vs. 3537 or 3532), the user may have misremembered the number, or G3539 could be a withdrawn, draft, or company-specific internal reference. No evidence of an active JIS G3539 exists in official catalogs from the Japanese Standards Association (JSA).
