46 C.F.R. § 52.01-90 Materials (modifies PG–5 through PG–13).
Title 46 - Shipping
(a) Materials subject to stress due to pressure shall conform to specifications as indicated in paragraph PG–5 through PG–13 of the ASME Code except as noted otherwise in this section. (b) Material not fully identified with an ASME Code approved specification may be accepted as meeting Coast Guard requirements provided it satisfies the conditions indicated in paragraph PG–10 of the ASME Code. (c) (Modifies PG–5.5.) When the maximum allowable working pressure (See PG–21) exceeds 15 pounds per square inch, cross pipes connecting the steam and water drums of water tube boilers, headers, cross boxes and all pressure parts of the boiler proper shall be made of a wrought or cast steel listed in Table PG–23.1 of the ASME Code. (d) (Modifies PG–8.2.2.) The use of cast iron for mountings, fittings, valves, or cocks attached directly to boilers operating at pressures exceeding 15 pounds per square inch is prohibited. (e) (Modifies PG–11.1.1.) The material, design, construction and workmanship of pumps shall be at least equivalent to the standards established by the American Bureau of Shipping or other recognized classification society. See part 58 of this subchapter. [CGFR 68–82, 33 FR 18815, Dec. 18, 1968, as amended by CGD 73–254, 40 FR 40163, Sept. 2, 1975; CGD 81–79, 50 FR 9432, Mar. 8, 1985]
Title 46: Shipping
PART 52—POWER BOILERS
Subpart 52.01—General Requirements
§ 52.01-90 Materials (modifies PG–5 through PG–13).

