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JIS G 3539 is the Japanese Industrial Standard for carbon steel wires for cold heading and cold forging. This specification covers wires used to manufacture fasteners like bolts, nuts, rivets, and machine screws. 1. Standard Scope & Application
Primary Use: Intended for cold forging processes in industries like automotive, general engineering, valves, and pumps.
Raw Materials: The wire rods used to manufacture these wires must conform to JIS G 3507. jis g3539 pdf
Key Benefit: Provides high strength, toughness, and excellent wear resistance for components that must resist delayed fracture. 2. Common Grades & Specifications
The following are examples of specific grades and their typical mechanical properties as defined by the standard: Material Grade Tensile Strength (MPa) Hardness (max) Reduction of Area (min) SWCH 10A SWCH 12R SWCH 15A
Note: Chemical compositions typically involve Carbon (C) levels ranging from 0.08% to 0.23% depending on the specific grade (e.g., SWCH 10A vs. SWCH 22A). 3. Manufacturing Tolerances (Diameter) If you want, I can:
Per the standard, tolerances for wire diameters are categorized into grades. For common wire sizes: Up to 6mm: +0 / -0.030mm. 6mm to 10mm: +0 / -0.036mm. 10mm to 18mm: +0 / -0.043mm.
Surface Quality: Wires must be free from harmful rust, scale, and defects that could impair cold heading or forging. 4. Technical Resources & PDF Access Jis G 3539 | PDF - Scribd
You're looking for the PDF version of JIS G3539, which is a Japanese Industrial Standard (JIS) that specifies the requirements for carbon steel wires for general use. JIS G 3539 is the Japanese Industrial Standard
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