What is the tolerance on tubes?

The ovality tolerance is considered to be a total spread, inside which both the maximum OD and minimum OD dimensions must fall. For example, on a 1″ OD tube with light wall, annealed temper, the total ovality tolerance is a spread of 0.030″.

What are tolerances on DOM tubing?

Steel Tubing. 0.500- 1.669, incl. 1.700-2.009, incl.

What is OD tolerance?

The OD under tolerance on all sizes is -0.031”.

What is out of roundness in pipe?

Out of roundness, sometimes referred to as ovality is tube or pipe on the same cross-section of the outer diameter, roundness or ovality is difference between the maximum and minimum dimensions of outside diameter, is carefully measured the high and low points at any one section of the tube or pipe.

What is tolerance on tube wall thickness?

There is no additional tolerance for ovality on tubes having a specified wall thickness of more than 3% of the outside diameter.

What is out of roundness tolerance?

Roundness tolerance (+/- 0.01 inch) would mean the difference between major OD and the minor OD throughout the profile should not be greater or less than 0.01 inches. When bending round profiles to a certain radius, the greater the OD to bend radius, the higher ovality should be expected.

What are the values of roundness?

The roundness is the value obtained by dividing the difference between the maximum and minimum values by 2. A micrometer is all that is needed for measurement; you can take measurements easily, anywhere.

What is the difference between ASTM A500 and ASTM A513?

ASTM A513 Tubing While A500 tubing is used more for durable building purposes, A513 tubing tends to be administered more for commercial, consumer-based applications (think: lawn mower handles and other similar consumer products). This is largely because it can be worked to much tighter tolerances than A500 tubing.

How is roundness tolerance calculated?

The roundness zone can be imagined as two concentric circles, with the difference in their radii being equal to the number given in the call-out. If it is possible to fully contain the measured profile by translating and scaling these concentric circles, the profile is in-tolerance for this inspection check.