49 CFR 179.300-6
§ 179.300-6 Thickness of plates.
United States · 49 CFR — Transportation · Status: effective
Cite this
- Citation
- 49 CFR 179.300-6, § 179.300-6 Thickness of plates, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/256806
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Full text
(a) For class DOT-110A tanks, the wall thickness after forming of the cylindrical portion of the tank must not be less than that specified in § 179.301 nor that calculated by the following formula:
Where:
(b) For class DOT-106A tanks, the wall thickness of the cylindrical portion of the tank shall not be less than that specified in § 179.301 and shall be such that at the tank test pressure the maximum fiber stress in the wall of the tank will not exceed 15,750 p.s.i. as calculated by the following formula:
where:
(c) If plates are clad with material having tensile strength at least equal to the base plate, the cladding may be considered a part of the base plate when determining the thickness. If cladding material does not have tensile strength at least equal to the base plate, the base plate alone shall meet the thickness requirements.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.