Which alloys are most commonly used for structural purposes under IS 1950?

Alloys like 64430 (equivalent to 6351) and 65032 (equivalent to 6061) in WP condition are typically used for structural applications.

Are dimensional tolerances detailed directly within IS 1950?

No, IS 1950 mandates that tolerances on dimensions and geometry must conform to IS 3965.

What testing is mandatory for verifying mechanical properties?

Tensile testing to determine ultimate tensile strength, 0.2 percent proof stress, and elongation as per IS 1608 is mandatory.

IS 1950

: 1997

Wrought Aluminium and Aluminium Alloy Bars, Rods and Sections for Structural Purposes - Specification

CurrentSpecializedSpecificationMaterials Science · Aluminium and Non-Ferrous Metals

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This Indian Standard specifies the requirements for chemical composition, mechanical properties, and manufacturing tolerances for wrought aluminium and aluminium alloy bars, rods, and sections intended for structural applications.

Specifies the requirements for wrought aluminium and aluminium alloy bars, rods, and sections used in structural applications.

Quick Reference Values

Tensile Strength for 64430-WP (Typical)295 MPa (Min)

0.2% Proof Stress for 64430-WP (Typical)255 MPa (Min)

Elongation on 50mm gauge length (64430-WP)10% (Min)

Standard delivery length1 to 6 metres (unless specified)

Practical Notes

Always explicitly specify the alloy designation (e.g., 64430) and temper condition (e.g., WP - Solution treated and precipitation treated) when procuring structural aluminum.

Verify dimensions and tolerances according to IS 3965 to ensure proper structural fit-up during fabrication.

Weldability and corrosion resistance vary significantly between different aluminium alloy grades; select the alloy based on the specific structural environment and joining method.