For professionals seeking the full technical data, official JIS G 3539 PDF documents can be obtained through the Japanese Standards Association (JSA) or specialized standards providers like GlobalSpec. Material - JIS G 3539 SWCH 8R - Gravity Group of Companies
JIS G3539 typically categorizes wire based on its chemical composition and the type of finish. Common designations include:
The grades scale by carbon content, striking a balance between initial ductility and final post-heat treatment hardness. Chemical Composition Breakdown
Note: While these standards are functionally equivalent, chemical and tensile ranges may vary slightly. Always verify the exact customer blueprint requirements against the official JIS document. How to Securely Obtain the Official JIS G3539 PDF
JIS G 3539:1991 Carbon steel wires for cold ... - Standards.ie jis g3539 pdf
The wire rods used for manufacturing these wires must conform to JIS G 3507 .
Depending on the manufacturing route (e.g., as-drawn, annealed, or spheroidized annealed), the wire must meet specific criteria for:
Screws, tapping screws, bolts, and specialized automotive or general engineering parts.
: Carbon (C) 0.13%–0.18%, Manganese (Mn) 0.30%–0.60%, and Aluminium (Al) min 0.020%. Mechanical Properties Tensile Strength : Varies by grade, typically ranging from 290 MPa min for softer grades like SWCH 8R to 340 MPa min for harder grades like SWCH 15A. : Standards often require a Reduction of Area of at least For professionals seeking the full technical data, official
The performance of the wire during forging depends largely on its chemical makeup. The standard dictates strict ranges for carbon (C), silicon (Si), manganese (Mn), phosphorus (P), and sulfur (S). Percentage Carbon (C) 0.080 - 0.130% Silicon (Si) 0.100 max% Manganese (Mn) 0.300 - 0.600% Phosphorus (P) 0.030 max% Sulphur (S) 0.035 max% Aluminium (Al) 0.020 min%
JIS G3539 is a standard that covers steel wires used for cold heading and cold extruding, which are processes used to manufacture fasteners, such as bolts, nuts, and rivets. The standard specifies the requirements for the chemical composition, mechanical properties, and microstructure of steel wires used for these applications. The standard also provides guidelines for the testing and inspection of steel wires to ensure that they meet the required specifications.
The JIS G 3539 standard serves as a cornerstone for ensuring the reliability of metallic materials in sectors ranging from automotive to general engineering. Unlike general-purpose spring steel, the materials specified under JIS G 3539 are specifically engineered for "cold-working"—a process where metal is shaped at room temperature rather than by heat.
Microscopic examination to ensure that surface carbon loss is within limits. - Standards
is a Japanese Industrial Standard that specifies requirements for carbon steel wires intended for cold heading and cold forging. These wires are primarily used to manufacture fasteners such as bolts, nuts, rivets, and various machine screws. Intertek Inform 1. Scope and Applications
You can find detailed technical sheets and specification guides for specific grades within this standard via the following sources:
Used for high-strength bolts and automotive components that undergo subsequent heat treatment (quenching and tempering). 2. Chemical Composition
Purchase directly from the JSA Web Desk or authorized global distributors like IHS Markit, Techstreet, or SAI Global.
Steering knuckles, engine pins, and specialized brackets.