SAF Altig AlMg4.5Mn description: ALTIG AlMg4.5Mn is a 5183 type aluminum solid TlG welding rod depositing Al-4.5Mg0.7Mn weld metal. Suitable for use with Ar, or Ar+He mixed shielding gases. ALTIG AlMg4.5Mn is suitable for welding of marine and other structures, where strength, toughness and corrosion resistance are priorities.