When nonstandard = stricter tolerance

When nonstandard = stricter tolerance

Sometimes in material procurement, customers will require specific measurements to be made within standard tolerances. For example, a customer may request a flat piece of no. 14 stainless steel with a thickness of 0.0781" (1.9837 mm).

This can also cause problems and require special mill running. This is because the manufacturer's standard production runs can be anywhere within the allowable tolerances.

Thus, requiring material to be at the high or low end of the tolerance range actually requires tighter tolerances -- which in turn may still require special orders and raise costs.

Wherever possible, maintain material procurement standards!

Most importantly, when designing parts, be sure to consider the feasibility of actually producing them and the cost and ease of obtaining appropriate standard materials as far as possible.

Many common procurement problems can be avoided by avoiding design issues (such as non-standard materials) into parts in the first place.

For example, suppose you are designing a pipe that carries a liquid between two endpoints. Instead of calculating the flow for the required length and then determining the pipe diameter, can you test your application using standardized pipe sizes?

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