Similar International Standards
ASTM A502-03ASTM International, USA
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Standard Specification for Steel Structural Rivets
Specifies grades, dimensions, and testing for steel rivets for structural fabrication.
DIN 124:1967-08Deutsches Institut für Normung, Germany
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Rundniete für den Stahlbau (Round head rivets for steel structures)
Covers dimensions and technical delivery conditions for hot-driven round head structural rivets.
BS 153-1:1958British Standards Institution (BSI), UK
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Specification for Steel Girder Bridges - Part 1: Materials, Workmanship, Protection Against Atmospheric Corrosion
Specifies materials, including rivet steel, for the fabrication of steel bridges.
JIS B 1213:1999Japanese Industrial Standards Committee, Japan
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Hot-driven rivets
Specifies requirements for hot-driven rivets, covering dimensions and materials for general use.
Key Differences
≠IS 7458 specifies two grades of rivet steel (Grade 1 and Grade 2) by reference to IS 2062. In contrast, ASTM A502 defined three distinct grades (Grade 1, 2, 3) with specific chemical composition limits within the standard itself.
≠The nominal diameter range in IS 7458 is 12 mm to 36 mm. The primary US equivalent, ASTM A502, covered a similar but imperial-based range of 1/2 inch to 1 1/2 inches (approx. 12.7 mm to 38.1 mm).
≠IS 7458 specifies dimensional tolerances for shank diameter as purely positive (e.g., +0.6/-0.0 mm for sizes up to 24mm), whereas ASTM A502 allowed for both positive and negative tolerances (e.g., +0.030/-0.010 inches).
≠While head geometries are similar, there are minor proportional differences. For instance, the head height and diameter for a given shank size can vary slightly between IS 7458, DIN 124, and ASTM A502.
Key Similarities
≈All standards (IS 7458, ASTM A502, DIN 124) are intended for rivets used in structural steel connections, such as in bridges, buildings, and other fabricated structures.
≈The fundamental manufacturing process covered is hot-forging, and the intended installation method is hot-driving, where the rivet is heated and its second head is formed on-site.
≈Basic head shapes like Snap (Button/Round) Head, Pan Head, and Countersunk Head are common across the standards, serving the same functional purposes.
≈All standards mandate stringent quality control tests on the rivet bar and finished rivets, including tensile tests, elongation tests, and ductility tests like the cold bend and head flattening test.
≈The material philosophy is consistent: specifying a low-to-medium carbon steel that is ductile enough for forming but has sufficient shear strength for structural loads.