Similar International Standards
BS EN 755-5:2021BSI - British Standards Institution (UK) / CEN - European Committee for Standardization
HighCurrent
Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 5: T-profiles, technical specifications
Specifies dimensions, tolerances, and technical specifications for extruded aluminium alloy T-profiles, aligning with the product form of IS 6475.
ASTM B308/B308M-21ASTM International (USA)
MediumCurrent
Standard Specification for Aluminum-Alloy 6061-T6 Standard Structural Profiles
Covers dimensions and properties for 6061-T6 structural profiles including tees, an alloy commonly used in marine applications, though different from IS 6475's primary alloy.
ISO 6362-5:2014ISO - International Organization for Standardization
HighCurrent
Wrought aluminium and aluminium alloy extruded rods/bars, tubes and profiles — Part 5: Specific requirements for T-profiles
Directly provides international requirements for extruded T-profiles, mirroring the scope of IS 6475 for this specific product shape.
Key Differences
≠IS 6475 uses Indian alloy designations like HE30 (64430), whereas international standards use the 4-digit Aluminum Association (AA) system, such as 6082 (EN/ISO) or 6061 (ASTM).
≠The EN/ISO standards framework is modular (e.g., separate parts for properties, tolerances, and product forms), while IS 6475 is a single, self-contained document for marine tee bars.
≠Minimum mechanical properties show slight variations. For the primary alloy, IS 6475 specifies 255 MPa for proof stress, while EN 755-2 specifies 260 MPa for the equivalent 6082-T6 alloy (for most common thicknesses).
≠IS 6475 is explicitly titled for 'marine application', implying a pre-selection of suitable alloys, whereas general standards like EN 755 or ASTM B221 apply to many applications, with marine suitability determined by the specific alloy chosen from a wider list.
Key Similarities
≈The primary alloy in IS 6475, HE30-WP (64430), is chemically and mechanically almost identical to alloy 6082-T6, a standard choice for structural and marine applications under EN and ISO standards.
≈All standards cover the same fundamental product form: extruded aluminium alloy tee bars, and define requirements for their geometry, dimensions, and manufacturing tolerances.
≈The specified high-strength temper condition, 'WP' in IS 6475, is equivalent to the 'T6' temper (solution heat-treated and artificially aged) in the EN, ISO, and ASTM systems.
≈All referenced standards mandate critical quality control procedures, including chemical composition analysis, mechanical property testing (tensile strength, proof stress, elongation), and dimensional verification.