Material: BS 1490 LM31 Description: Standard Specification for Aluminium and Aluminium Alloy Ingots and Casting for General Engineering Purpose Group Name: NonāFerrous Alumium Alloy Sub Group: Aluminium Alloy BS 1490 for Ingots and Casting General Engineering Purpose Application: Intended for Valve, Pump, General Engineering, Automotive and Other Industries Grade Standard: BS-BRITISH STANDARD