Seamless and Welded Unalloyed Titanium and Titanium Alloy Welding Fittings1 This standard is issued under the fixed designation B 363; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. B16.9 Wrought Steel Butt-Welding Fittings4 B36.19 Stainless Steel Pipe4 2.3 Manufacturers’ Standardization Society of the Valve and Fittings Industry Standards: SP-25 Standard Marking System for Valves, Fittings, Flanges and Unions5 SP-43 Standard Practice for Light Weight Stainless Steel Butt-Welding Fittings5 2.4 ASME Standard: ASME Boiler and Pressure Vessel Code, Sections VIII and IX6 1. Scope 1.1 This specification2 covers fittings intended for general corrosion-resisting and elevated-temperature services, factory made from unalloyed titanium and titanium alloys. The term welding fittings applies to butt-welding parts such as 45° and 90° elbows, 180° returns, caps, tees, reducers, lap-joint stub ends, and other types. 1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 3. Ordering Information 3.1 Orders for material to this specification shall include the following information as required: 3.1.1 Quantity, 3.1.2 Grade number, 3.1.3 Pipe size and schedule, 3.1.4 Method of manufacture and finish, 3.1.5 Restrictive chemistry, if desired, 3.1.6 Nondestructive tests, 3.1.7 Packaging, and 3.1.8 Inspection and required reports. 2. Referenced Documents 2.1 ASTM Standards: B 265 Specification for Titanium and Titanium Alloy Strip, Sheet, and Plate3 B 338 Specification for Seamless and Welded Titanium and Titanium Alloy Tubes for Condensers and Heat Exchangers3 B 348 Specification for Titanium and Titanium Alloy Bars and Billets3 B 367 Specification for Titanium and Titanium Alloy Castings3 B 381 Specification for Titanium and Titanium Alloy Forgings3 B 600 Practice for Descaling and Cleaning Titanium and Titanium Alloy Surfaces3 B 861 Specification for Titanium and Titanium Alloy Seamless Pipe3 B 862 Specification for Titanium and Titanium Alloy Welded Pipe3 2.2 ANSI Standards: 4. Material 4.1 The titanium for welding fittings may consist of billets, bars, plates, seamless or welded pipe or tube that conforms to all the requirements for manufacturing process, testing, chemical composition, and mechanical properties prescribed in Specifications B 861 and B 862 for the particular grades referred to in Table 1. 5. Manufacture 5.1 Forging, forming, or shaping operations may be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, or by a combination of two or more of these operations. The forming procedure shall be so 1 This specification is under the jurisdiction of ASTM Committee B10 on Reactive and Refractory Metals and Alloys and is the direct responsibility of Subcommittee B10.01 on Titanium. Current edition approved May 10, 2000. Published July 2000. Originally published as B 363 – 61 T. Last previous edition B 363 – 99a. 2 For ASME Boiler and Pressure Vessel Code applications, see related Specification SB-363 in Section II of that Code. 3 Annual Book of ASTM Standards, Vol 02.04. 4 Available from American National Standards Institute, 11 W. 42nd St., 13th Floor, New York, NY 10036. 5 Available from the Manufacturers’ Standardization Society of the Valve and Fittings Industry, 420 Lexington Ave., New York, NY 10017. 6 Available from the American Society of Mechanical Engineers, 345 E. 47th St., New York, NY 10017. Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States. 1 COPYRIGHT American Society for Testing and Mate

B 363 TABLE 1 Permissible Raw Materials Product and ASTM Designation Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade...

B 363 that will interfere with the purpose for which the fittings are intended. Minor defects may be removed by grinding, providing the wall thickness is not decreased to less than the minimum thickness, and further provided that the ground-out area shall be faired out. NOTE 3—It is recognized that a sensitive surface inspection of the welds or base metal, or both, is advisable for some services. See Supplementary Requirements. 12. Rejection 12.1 Material not conforming to this specification or to authorized modifications shall be subject to rejection. Unless otherwise specified, rejected material...

B 363 This standard is copyrighted by ASTM, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the above address or at 610-832-9585 (phone), 610-832-9555 (fax), or [email protected] (e-mail); or through the ASTM website (www.astm.org). 4 COPYRIGHT American Society for Testing and Materials Licensed by Information Handling Services