The following standards are used to all mechanical engineer while design a machine components.
- Standards for materials, their chemical compositions, mechanical properties and heat treatment.
- Standards for shapes and dimensions of commonly used machine elements.
- Standards for fits, tolerance and surface finish of components.
- Standards for testing of products.
- Standards for engineering drawing of components.
Mainly there are three types of standards used in design.
- Company standards
They are used in particular company or group of company.
- National standards
National standards are :
IS ( Bureau of Indian Standards )
IS ( Bureau of Indian Standards )
DIN ( German )
AISI or SAE ( USA )
BS ( UK )
- International standard
These are prepared by the International Standards Organization ( ISO )