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Understanding Heat Exchanger Reading 03b- The ARAMCO Std.

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Table 1 - Minimum wall thickness of tubes<br />

Dimensions in millimeters (inches)<br />

Material Type<br />

CS, low alloy steel (9% Cr max) Al and Al alloy<br />

Cu and Cu alloys<br />

High alloy (austenitic, ferritic Stainless and<br />

Duplex )and other non-ferrous materials<br />

Titanium<br />

Minimum Wall Thickness a<br />

2.11 mm<br />

1.65 mm<br />

1.473 mm<br />

1.067 mm<br />

a<br />

For low-fin tubing, this shall be minimum thickness at the root diameter<br />

Charlie Chong/ Fion Zhang

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