46 C.F.R. § 56.60-2 Limitations on materials.
Title 46 - Shipping
Welded pipe and tubing. The following restrictions apply to the use of welded pipe and tubing specifications when utilized in piping systems, and not when utilized in heat exchanger, boiler, pressure vessel, or similar components: (a) Longitudinal joint. Wherever possible, the longitudinal joint of a welded pipe shall not be pierced with holes for branch connections or other purposes. (b) Class II. Use unlimited except as restricted by maximum temperature or pressure specified in Table 56.60–1(a) or by the requirements contained in §56.10–5(b) of this chapter. (c) Class I. (1) For those specifications in which a filler metal is used, the following applies to the material as furnished prior to any fabrication: (i) For use in service above 800 °F. full welding procedure qualifications by the Coast Guard are required. See part 57 of this subchapter. (ii) Ultrasonic examination as required by item S–6 in ASTM A–376 shall be certified as having been met in all applications except where 100 percent radiography is a requirement of the particular material specification. (2) For those specifications in which no filler material is used in the welding process, the ultrasonic examination as required by item S–6 in ASTM A–376 shall be certified as having been met for service above 800 °F. [CGFR 68–82, 33 FR 18843, Dec. 18, 1968, as amended by CGFR 69–127, 35 FR 9978, June 17, 1970; CGD 72–104R, 37 FR 14233, July 18, 1972; CGD 73–248, 39 FR 30839, Aug. 26, 1974; CGD 73–254, 40 FR 40165, Sept. 2, 1975; CGD 77–140, 54 FR 40612, Oct. 2, 1989; CGD 95–012, 60 FR 48050, Sept. 18, 1995; CGD 95–027, 61 FR 26001, May 23, 1996; CGD 95–028, 62 FR 51201, Sept. 30, 1997; USCG–1998–4442, 63 FR 52190, Sept. 30, 1998; USCG–1999–5151, 64 FR 67180, Dec. 1, 1999]
Title 46: Shipping
PART 56—PIPING SYSTEMS AND APPURTENANCES
Subpart 56.60—Materials
§ 56.60-2 Limitations on materials.
Table 56.60-2(a)_Adopted Specifications Not Listed in the ASME Code------------------------------------------------------------------------ ASTM specifications Source of allowable stress Notes------------------------------------------------------------------------ Ferrous Materials \1\------------------------------------------------------------------------Bar stock: A276 (Grades See footnote 4................. (\4\) . 304-A, 304L-A, 310-A, 316-A, 316L-A, 321-A, 347-A, and 348- A). A575 and A576 (Grades 1010-1030)........... See footnote 2................. (\2,3 \).------------------------------------------------------------------------ Nonferrous Materials------------------------------------------------------------------------Bar stock: B16 (soft and half hard See footnote 5................. (\5,7 tempers). \). B21 (alloys A, B, and C)...... See footnote 8................. (\8\) . B124: Alloy 377................... See footnotes 5 and 9.......... (\5,9 \). Alloy 464................... See footnote 8................. (\8,1 0\). Alloy 655................... See footnote 11................ (\11\ ). Alloy 642................... See footnote 12................ (\7,1 2\). Alloy 630................... See footnote 13................ (\7,1 3\). Alloy 485................... See footnote 8................. (\8,1 0\).Forgings: B283 (forging brass).......... See footnotes 5 and 9.......... (\5 9\).Castings: B26........................... See footnotes 5, 14, and 15.... (\5,1 4,15\ ). B85........................... See footnotes 5, 14, and 15.... (\5,1 4,15\ ).------------------------------------------------------------------------\1\ For limitations in use refer to § 56.60-5.\2\ Allowable stresses shall be the same as those listed in UCS23 of section VIII of the ASME Code for SA-675 material of equivalent tensile strength.\3\ Physical testing shall be performed as for material manufactured to ASME Specification SA-675, except that the bend test shall not be required.\4\ Allowable stresses shall be the same as those listed in UCS23 of section VIII of the ASME Code for the corresponding SA-182 material.\5\ Limited to air and hydraulic service with a maximum design temperature of 150 °F. The material must not be used for salt water service or other fluids that may cause dezincification or stress corrosion cracking.\6\ [Reserved]\7\ An ammonia vapor test, in accordance with ASTM B 858M (incorporated by reference, see § 56.01-2), shall be performed on a representative model of each finished product design.\8\ Allowable stresses shall be the same as those listed in UNF23 of section VIII of the ASME Code for SB-171, naval brass.\9\ An ammonia vapor test, in accordance with ASTM B 858 (incorporated by reference, see § 56.01-2), shall be performed on a representative model for each finished product design. Tension tests shall be performed to determine tensile strength, yield strength, and elongation. Minimum values shall be those listed in table 3 of ASTM B283.\10\ Physical testing, including mercurous nitrate test, shall be performed as for material manufactured to ASTM B21.\11\ Physical testing shall be performed as for material manufactured to ASTM B96. Allowable stresses shall be the same as those listed in UNF23 of section VIII of the ASME Code for SB-96 and shall be limited to a maximum allowable temperature of 212 °F.\12\ Physical testing shall be performed as for material manufactured to ASTM B171, alloy D. Allowable stresses shall be the same as those listed in UNF23 of section VIII of the ASME Code for SB-171, aluminum bronze D.\13\ Physical testing shall be performed as for material manufactured to ASTM B171, alloy E. Allowable stresses shall be the same as those listed in UNF23 of section VIII of the ASME Code for SB-171, aluminum bronze, alloy E.\14\ Tension tests shall be performed to determine tensile strength, yield strength, and elongation. Minimum values shall be those listed in table X-2 of ASTM B85.\15\ Those alloys with a maximum copper content of 0.6 percent or less shall be acceptable under this specification. Cast aluminum shall not be welded or brazed.Note: This Table 56.60-2(a) is a listing of adopted bar stock and nonferrous forging and casting specifications not listed in the ASME Code. Particular attention should be given to the supplementary testing requirements and service limitations contained in the footnotes.
