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Guardian Structural Technologies

ASTM A513

Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing

What it measures

Covers welded mechanical tubing and its dimensional tolerances.

Why it matters for a panel envelope

Tolerances matter in a factory-built panel, where a member that is out of dimension shows up as a panel that will not sit square.

Guardian Shield™

Cited in the Shield™ specification's reference standards.

Source · 3-Part Specification, 1.3 F.3 · Guardian documents

Written by Data Subsystems, for Guardian Structural Technologies. Last updated .

Drafted from Guardian Structural product literature and published building-science sources. Awaiting Guardian technical review. Confirm any figure against the current product documents or ask us before you rely on it in a design.

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Tell us what you are building. We design and produce the envelope to your exact drawings, residential or commercial.

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