0.0012
1 hr = 3600 secso, 4130 sec/3600 = 1.1472 hours
4130
Yes, 4130 steel is magnetic. It contains iron as the main element, and iron is a ferromagnetic material, which means it can be magnetized.
The melting point of AISI 4130 steel is approximately 2600°F (1427°C).
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The Bold and the Beautiful - 1987 1-4130 was released on: USA: 15 September 2003
4130 usually means the frame is Chromolly 4130 and the manufacturer tagged the bike with it. You will more likely find them on BMX bikes and specifically old school or higher priced than your typical cheap store bikes made of steel.
A cubic inch of 4130 steel weighs approximately 0.283 pounds.
-x divided by -5 is x/5.
631 and 4130 are similar density, but 631 is stronger. So theoretically you could build equal strength with a thinner guage tube using 631. I think the FactionBMX company uses 631 tubing to achieve a lighter frestyle bike than its smaller-sized 4130 competitors.
5
4130 chromoly