Applications for 6061 vs 7075
6061 is highly versatile and can be used for almost any structural component. Commercial and personal use vehicles utilize 6061 for frames and running boards. Infrastructure uses it in mass transit and subway platforms, steps, flooring, walkways and cover plates. Consumer products such as bicycle frames and components, SCUBA tanks, fishing reels and small utility boats all benefit from the increased weldable nature and its ability to undergo hot forging.
Use 6061 when:
- You need to do a lot of machining on the part
- You need to do a lot of welding on the project
- Cost is a main factor
7075 is notable for its high strength-to-weight ratio and improved strength over 6061. Because of this, 7075 is largely used in aerospace, marine and transportation industries. Any industry where high strength and light weight properties are critical, this alloy is preferred. High-end bicycle components, molds for the plastics and tool industries, airframes, and even military-grade including rifle receivers all heavily utilize 7075.
Use 7075 when:
- High strength and low weight are crucial
- The part will be exposed to a lot of heat
- The part will be exposed to a lot of friction and needs to be hard
- Cost is less of an issue