Current as of: Oct. 2009
(a) Charpy V-notch impact tests. Where required, Charpy V-notch tests shall be conducted in accordance with ASTM Specification E 23 (incorporated by reference, see Sec. 54.01-1), ``Notched Bar Impact Testing of Metallic Materials'', using the Type A specimen shown in Figure 4 of the specification. Special attention is drawn to the fact that the Charpy Keyhole and U-notch specimens are not acceptable substitutes for the Charpy V-notch specimen and shall not be used to qualify materials within the scope of this subpart. Each set of Charpy impact tests shall consist of three specimens. For materials 1/2-inch thick or less, the largest possible Charpy specimens for that thickness shall be cut centered at the material's mid-thickness. For materials thicker than 1/2-inch, full size Charpy specimens shall be cut centered at a location as near as practicable to a point midway between the material's surface and half-thickness. Except where otherwise specified, transversely oriented specimens must be used. When longitudinal specimens are used, the required energy values may not be less than 1.5 times the values required for transversely oriented specimens. In all cases the notch shall be cut normal to the material's surface. Test specimens shall be taken at least one ``t'' from any heat treated edge (where ``t'' is the material's nominal thickness).
(b) Drop weight tests. Where required, drop weight tests shall be conducted for no-break performance in accordance with ASTM Specification E 208 (incorporated by reference, see Sec. 54.01-1), ``Conducting Drop-Weight Test to Determine Nil-Ductility Transition Temperature of Ferritic Steels''. For material thicknesses between 1/2-inch and 5/8-inch, the ASTM E-208 specimen P-3, machined to 1/2-inch thickness, shall be used with a stop distance of 0.090-inch. In preparing weld specimens for dropweight testing, weld reinforcement shall be ground flush, the hard facing bead centered on and transverse to the weld, and the notch centered on and parallel to the weld axis.
(c) Retest procedures. (1) When Charpy V-notch impact specimens are used and the average value of the three initial specimens fails to meet the stated requirements by an amount not exceeding 15 percent, or the value for more than one specimen is below the required average value of when the value for one specimen is below the minimum value permitted for a single specimen by an amount not exceeding 15 percent, three additional specimens from the same material may be tested and the results combined with those previously obtained to form a new average. This new average of six specimens must exceed the specified minimum average. In the event the Charpy retests fail, the material may still be qualified by exhibiting a no-break performance when tested in accordance with the drop weight procedure, if applicable. Two drop weight specimens shall be tested for each Charpy V-notch set of three initial specimens which failed to qualify. Failure of either or both of these drop weight specimens will constitute rejection of the material or weldments represented, except as outlined in paragraph (c)(3) of this section.
(2) When drop weight specimens are used, retests shall be permitted only within the limits prescribed in ASTM Specification E 208 (incorporated by reference, see Sec. 54.01-1), except as outlined in paragraph (c)(3) of this section.
(3) If, for heat treated base material, the required toughness results are not obtained in the initial test or in the retest, the material may be reheat treated one time and tested again in accordance with the initial requirements for the material.
(d) Alternate toughness tests. The Charpy V-notch impact values of Sec. Sec. 54.05-20(a) and 54.05-25(a) are representative of those which correlate with the nil-ductility transition temperature determined by the drop-weight tests for the steels specified in Sec. 54.25-10. For materials for which there are other data showing suitable correlation between Charpy V-notch and drop-weight tests, V-notch acceptance limits different from those tabulated herein may be specially approved by the Commandant, based upon the actual correlation. In the case of steels for which the tabulated Charpy V-notch values can be shown to be inapplicable or in the case of specially considered steels, or as an alternative to complying with the tabulated impact requirements, acceptance may be based upon the material exhibiting a no-break performance when tested in accordance with the drop-weight procedure. Whenever the drop-weight test is used as an alternative to the Charpy V-notch test, two drop-weight specimens shall be tested for each set of three Charpy V-notch specimens otherwise required. If the drop-weight test cannot be performed because of material thickness limitations (less than one-half inch) or product shape, or is otherwise inapplicable (because of heat treatment, chemistry, etc.), other tests and/or test criteria will be specified by the Commandant to assure the adequacy of the material for the intended application.
[CGFR 68-82, 33 FR 18828, Dec. 18, 1968, as amended by CGD 73-254, 40 FR 40163, Sept. 2, 1975; USCG-2000-7790, 65 FR 58460, Sept. 29, 2000]________________________________________________________________________
State Laws: Watercraft| Alabama | Alabama Code > Title 33 > Chapter 5 - Registration And Operation Of Vessels | | Alabama Code > Title 33 > Chapter 6 - Discharge Of Litter And Sewage From Watercraft | | Alabama Code > Title 33 > Chapter 6A - Recreational Vessel And Residence Boat Sewage Discharges Regulated | | Alaska | Alaska Statutes Chapter 05.25 - Watercraft | | Alaska Statutes Chapter 30.30 - Abandoned And Derelict Vessels | | Arizona | Arizona Laws > Title 5 > Chapter 3 - Boating And Water Sports | | California | California Harbors and Navigation Code > Division 3 - Vessels | | California Harbors and Navigation Code > Division 4 - Masters, Crews And Cargoes | | California Harbors and Navigation Code > Division 5 - Pilots For Monterey Bay And The Bays Of San Francisco, San Pablo, And Suisun | | Connecticut | Connecticut General Statutes > Title 15 > Chapter 268 - Boating | | Delaware | Delaware Code Title 23 > Chapter 21 - Motorboats | | Delaware Code Title 23 > Chapter 22 - Boating Safety | | Delaware Code Title 23 > Chapter 23 - Operation Of A Vessel Or Boat While Under The Influence Of Intoxicating Liquor And/Or Drugs | | Delaware Code Title 23 > Chapter 24 - Exemptions From Civil Liability For Rendering Vessel Traffic Information Services | | Florida | Florida Statutes > Title XXIV - Vessels | | Florida Regulations Chapter 61B-60 - Yacht and Ship Brokers | | Florida Regulations > Division 68D - Vessel Registration and Boating Safety | | Idaho | Idaho Code Title 67 > Chapter 70 - Idaho Safe Boating Act | | Illinois | Illinois Compiled Statutes > 625 ILCS 45 - Boat Registration and Safety Act | | Indiana | Indiana Code > Title 9 > Article 31 - Watercraft Titling And Registration | | Indiana Code > Title 25 > Article 28 - Boat Pilots | | Kansas | Kansas Statutes > Chapter 32 > Article 11 - Boating And Water Activities | | Maine | Maine Revised Statutes > Title 10 > Chapter 204-B - Watercraft Manufacturers, Distributors And Dealers | | Maine Revised Statutes > Title 10 > Chapter 212-A - Maine Marina And Boatyard Storage Act | | Maine Revised Statutes > Title 10 > Chapter 627 - Vessels | | Maine Revised Statutes > Title 12 > Chapter 935 - Watercraft And Airmobiles | | Maine Revised Statutes Title 23 > Chapter 412 - Waterborne Transportation | | Massachusetts | Massachusetts General Laws > Part I > Title XIV > Chapter 90B - Motorboats And Other Vessels | | Michigan | Michigan Laws > Chapter 123 > Act 68 of 1957 - Regulation Of Houseboats | | Michigan Laws > Chapter 445 > Act 88 of 1989 - Watercraft And Outboard Motor Manufacturers, Distributors, And Dealers | | Minnesota | Minnesota Statutes Chapter 86B - Water Safety, Watercraft, and Watercraft Titling | | Missouri | Missouri Laws > Title XIX > Chapter 306 - Watercraft Regulation and Licensing--State Water Patrol | | Nevada | Nevada Revised Statutes > Chapter 488 - Watercraft | | New Hampshire | New Hampshire Revised Statutes > Chapter 270-A - Use Of Houseboats | | New Hampshire Revised Statutes > Chapter 270-B - Abandoned Boats | | New Hampshire Revised Statutes > Chapter 270-D - Boating And Water Safety On New Hampshire Public Waters | | New Hampshire Revised Statutes > Chapter 270-E - Vessel Registration And Numbering | | New Mexico | New Mexico Statutes Chapter 66 > Article 12 - Boating | | New Mexico Statutes Chapter 66 > Article 13 - Boating While Intoxicated | | New York | New York Laws - General Business > Article 38 - Vessel Dealer Agreements | | New York | New York Laws > General Business > Article 38 - Vessel Dealer Agreements | | North Carolina | North Carolina General Statutes Chapter 75A - Boating and Water Safety | | North Dakota | North Dakota Code > Chapter 20.1-13 - Boating Regulation | | North Dakota Code > Chapter 20.1-13.1 - Intoxication Testing of Boat Operators | | North Dakota Code > Chapter 20.1-17 - Aquatic Nuisance Species | | Ohio | Ohio Code > Title 15 > Chapter 1547 - Watercraft And Waterways | | Ohio Code > Title 15 > Chapter 1548 - Watercraft Certificates Of Title | | Ohio Code > Title 45 > Chapter 4585 - Actions Relating To Watercraft | | Oregon | Oregon Statutes > Title 61 - Small Watercraft | | Rhode Island | Rhode Island General Laws > Chapter 46-8. Registration of Outboard Motors | | Rhode Island General Laws > Chapter 46-9. Pilots – Rhode Island Sound, Narragansett Bay, Sakonnet River, and Tributaries | | Rhode Island General Laws > Chapter 46-9.1. Pilots–Block Island Sound | | Rhode Island General Laws > Chapter 46-22. Regulation of Boats | | Rhode Island General Laws > Chapter 46-22.1. Uniform Boat Title Act | | Rhode Island General Laws > Chapter 46-22.2. Alcohol Boating Safety Act | | Rhode Island General Laws > Chapter 46-27. Personal Watercraft Safety Act | | South Carolina | South Carolina Code > Title 29 > Chapter 9 - Liens On Ships And Vessels | | South Carolina Code > Title 50 > Chapter 21 - Equipment And Operation Of Watercraft | | South Carolina Code > Title 50 > Chapter 23 - Watercraft And Outboard Motors | | South Carolina Code > Title 50 > Chapter 25 - Boating And Surfing At Particular Localities | | South Dakota | South Dakota Laws > Title 32 > Chapter 03A - Title, Registration And Taxation Of Boats | | South Dakota Laws > Title 32 > Chapter 07B - Regulation Of Boat Dealers | | South Dakota Laws > Title 42 > Chapter 8 - Watercraft | | Tennessee | Tennessee Code > Title 69 > Chapter 9 - Boating Regulation | | Texas | Texas Civil Statutes > Title 132 > Chapter 19 - Boat Or Motor Manufacturers, Distributors, And Dealers | | Utah | Utah Code > Title 73 > Chapter 18 - State Boating Act | | Utah Code > Title 73 > Chapter 18 - Boating - Litter and Pollution Control | | Utah Code > Title 73 > Chapter 18 - Water Safety | | Utah Code > Title 73 > Chapter 18 - Financial Responsibility of Motorboat Owners and Operators Act | | Vermont | Vermont Statutes > Title 25 > Chapter 1 - Operation of Vessels | | Virginia | Virginia Code Title 29.1 > Chapter 7 - Boating Laws | | Virginia Code Title 29.1 > Chapter 8 - Watercraft Dealer Licensing Act | | Virginia Code Title 62.1 > Chapter 18 - Protection of Aids to Navigation | | Wisconsin | Wisconsin Statutes > Chapter 30 > Subchapter V - Regulation Of Boating |
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