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wilby08

10th Jun 2010 23:42

SAE numbering system for steel

Hi can anyone tell me where you would find SAE 8195 and SAE 4035 steels on an aircraft or what these steels are usually made into etc.
Thanks

Capt Casper

11th Jun 2010 05:01

1= Carbon steels
2= Nickle steels
3= Nickle Chrome steels
4= Molybdenum steels
5= Chromium steels
6= Chrome vanadium steels
7 ??
8=Nickle Chromium-Molybdenum steels
9= Silicon - Manganese steels

2nd number= percentage of main alloy
3rd and 4th number= carbon content in points.

Alloying and heat treatment are combined to achieve desired properties - Hardness, toughness, suitability to weld or machine etc.

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