Uses for steel on aircraft?

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Uses for steel on aircraft?

Postby mikecoulter » Sun Nov 21, 2010 6:01 pm UTC

Hey all, just doing some work on my Aircraft Materials module and can only think of one use for steel, the landing gear, due to its good resistance to metal fatigue from shock and vibrations.

Any help?

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Re: Uses for steel on aircraft?

Postby scarecrovv » Sun Nov 21, 2010 11:19 pm UTC

Depending on what type of aircraft you're building, steel is a common material for gun barrels.

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Re: Uses for steel on aircraft?

Postby Dropzone » Sun Nov 21, 2010 11:59 pm UTC

I don't know if this is exactly what you're looking for - it's mainly a historical note - but the MiG-25's fuselage was built mostly of steel (see here). They needed something with enough heat resistance to survive at very high speeds, and ran into problems with using titanium (which is what's usually used in that situation).

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Re: Uses for steel on aircraft?

Postby Carnildo » Mon Nov 22, 2010 12:18 am UTC

Steel is used any time strength per unit volume is more important than strength per unit mass, or where aluminum has undesirable properties (eg. low surface hardness or low elevated-temperature strength).

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Re: Uses for steel on aircraft?

Postby Korrente » Mon Nov 22, 2010 5:02 am UTC

Yeah there's no reason you couldn't use steel for the ribs and/or spars. If you have a semi-monocoque or truss type fuselage you could use steel to shape it. On a small aircraft it might prove problematic with weight issues though. Also maybe some steel in the engine?

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Re: Uses for steel on aircraft?

Postby Velifer » Mon Nov 22, 2010 1:33 pm UTC

The first metal Junkers used a sheet steel skin.
Time flies like an arrow, fruit flies have nothing to lose but their chains -Marx

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Re: Uses for steel on aircraft?

Postby gorcee » Mon Nov 22, 2010 6:00 pm UTC

In vehicles with cable-operated control surfaces, the cables are often braided steel. In more modern aircraft, there are probably steel components in the hydraulic actuators. Depending on the age, type, role of the aircraft, you might find steel in engine mountings, main spars, load points (landing gear, tail, etc). Most modern aircraft are principally made of aluminum or more advanced alloys.

Can you be more specific?

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Re: Uses for steel on aircraft?

Postby p1t1o » Wed Nov 24, 2010 11:48 am UTC

It is very likely that parts of the seatbelt buckles and fastenings are steel.

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Re: Uses for steel on aircraft?

Postby Seraph » Wed Nov 24, 2010 9:34 pm UTC

Some jet engine manufacturers use steel for engine parts where nickel alloys arn't called for but are still too harsh for aluminum alloys.

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