Chalo....
C'mon man. 7000 series is made to be stronger than 6000 series..
7005 :
Tensile Strength, Ultimate 350MPa
50763 psi
7075:
Tensile Strength, Ultimate 675 MPa
97900 psi
Tensile Strength, Yield 625 MPa 90600 psi
6061:
Ultimate Tensile Strength 310 MPa
45000 psi
Tensile Yield Strength 276 MPa 40000 psi
7005 is nearing ( stronger than some) mild steel.
Mild steel is 400 megapascals (to about 800 MPa )
Tensile Strength, Ultimate 420 MPa
60900 psi This is the value for AISI 1020, a mild steel. Values can range from 295 - 2400 MPa, depending on composition and heat treatment.
However, pound for pound, the steel will be stiffer . Whats 10,000psi anyway. Lol. Bah.
7005 is a very very strong aluminum, budz. Very will known for its strength ( its brother, used in airplanes for this strength traditionally , 7075) (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.)
I know my metals a little, friend. 7005 is
certainly stronger than 6061.
Chalo said:
DogDipstick said:
Yeah I have a 7005 Aluminum bike. I think its stronger or something.
Nope, it's about the same strength as 6061 aluminum. The advantage it has, is that it solution heat treats at air cooling rates after welding (in bicycle-ish cross sections). It still benefits from artificial aging, but it saves an expensive step for manufacturers to not have to roast the thing at 990°F after it's been welded.
As BANSHEE Bicycles also agrees with me: For this is how they put it: For they seem to like the 7005 alloy too....
13% stronger, 55% more fatigue strength, 4.5% stiffer: <SHRUG>
Hmmm Maybe I will try to weld my broke Banshee but I swear i read that it was 6061 somewhere. Too bad I cannot tell alloys from one another . Not even my XRF will.
Superior Alloy
All our frames are made using 7005 T6 alloy tubes and forgings. While most other brands use the cheaper and easier to handle 6061 T6 option, we choose to use 7005 T6 because it has superior properties which results in superior frames.
Ultimate Tensile Strength: The measure of the maximum load that an object/material/structure can withstand without being elongated, stretched or pulled. As you can see the tensile strength of 7005 T6 is 12.9% greater than 6061.
Tensile Strength, Yield: The stress a material can withstand without permanent deformation.
Fatigue Strength: The highest stress that a material can withstand for a given number of cycles without breaking. The figured below represent fatigue strength for 500,000,000 cycles (good luck trying to clock up this many pedal strokes!). 7005 T6 has a 55% higher fatigue strength over this number of cycles.
Also worth mentioning that 7005 T6 is 4.5% stiffer than 6061 T6… just saying!
https://www.bansheebikes.com/7005-t6
Mmmmm graphics.