Similar International Standards
ASTM B221 / B221M-21ASTM International, USA
HighCurrent
Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes
Covers extruded aluminum alloy bars, rods, and profiles for general and structural applications.
BS EN 755-2:2016BSI / CEN, UK / Europe
HighCurrent
Aluminium and aluminium alloys. Extruded rod/bar, tube and profiles. Mechanical properties
Specifically covers mechanical properties for the same product forms as IS 1950.
BS EN 573-3:2019BSI / CEN, UK / Europe
MediumCurrent
Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products
Defines the chemical composition for alloys, which are then referenced by mechanical property standards like EN 755-2.
ISO 6362-2:2014ISO, International
HighCurrent
Wrought aluminium and aluminium alloys — Extruded rods/bars, tubes and profiles — Part 2: Mechanical properties
International standard specifying mechanical properties for extruded aluminum profiles, rods, and bars.
Key Differences
≠Alloy Designation System: IS 1950 uses a 5-digit numerical system (e.g., 64430, 24345) based on Indian industry conventions, whereas international standards use a 4-digit system (e.g., 6082, 2014) established by The Aluminum Association.
≠Temper Designation: IS 1950 uses a simpler temper designation system (e.g., 'M' for as manufactured, 'WP' for solution treated and artificially aged). International standards (ASTM/EN) use a more detailed system (e.g., T6, T651, T4) which provides more specific information about the thermomechanical processing history.
≠Range of Alloys: IS 1950 specifies a limited set of alloys commonly used in India at the time of publication. International standards like ASTM B221 and the EN series cover a much more extensive and regularly updated list of alloys.
≠Dimensional Tolerances: While all standards specify tolerances, the specific values and classification tables differ. IS 1950 has its own set of tables for dimensions, straightness, and twist, which are not directly interchangeable with the 'Standard' and 'Precision' tolerances in EN 755-9 or the tables in ASTM B221.
Key Similarities
≈Core Scope: All standards fundamentally cover the technical delivery conditions for wrought aluminum and aluminum alloy products (bars, rods, sections) intended for structural and general engineering purposes.
≈Property Specification: All standards specify mandatory requirements for both chemical composition (to define the alloy) and mechanical properties (tensile strength, proof/yield stress, elongation) to ensure performance.
≈Product Forms: IS 1950 and its international equivalents all apply to the same set of semi-finished product forms, primarily produced by extrusion, rolling, or drawing.
≈Testing Protocols: The underlying principles for material testing, such as tensile testing and chemical analysis, are broadly similar, often referencing other standards (e.g., IS 1608 for tensile testing in India, similar to ISO 6892 internationally).