6061
Aluminum6061
(AA 6xxx). Nominal values—confirm mill certificate.
Chemical Composition (%)
| SI | 0.4 |
|---|---|
| FE | 0.7 |
| CU | 0.15 |
| MN | 0.15 |
| MG | 0.8 |
| CR | 0.04 |
| ZN | 0.25 |
| TI | 0.15 |
Mechanical Properties
Tensile:≥585 MPa;Yield:≥350 MPa;Elong:≥18%
Equivalent Grades
AA 6xxx 6061
Available Forms
Bar,Plate
Uses
Low-alloy engineering steel with enhanced hardenability and strength from alloying elements. Chromium (≈0.75%) improves hardenability, wear and corrosion resistance. Applied to gears, shafts, bolts, connecting rods, pressure parts and heavy forgings in automotive, energy and machinery sectors.
Heat Treatment
Austenitize at 820–870 °C (oil or water quench depending on section) and temper at 400–650 °C to the required strength/toughness balance.
Precautions
Preheat and control interpass temperature when welding; post-weld heat treatment or stress relief is recommended to avoid hard-zone cracking. Use low-hydrogen electrodes. Protect from decarburization during heating (controlled atmosphere or protective coating).
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