ASTM B861-14 pdf download.Standard Specification for Titanium and Titanium Alloy Seamless Pipe.
3. Terminology 3.1 Definitions: 3.1.1 lot, n—a number ofpieces ofpipe ofthe same nominal size and wall thickness manufactured by the same process from a single heat of titanium or titanium alloy and heat treated by the same furnace parameters in the same furnace. 3.1.2 seamless pipe, n—a hollow tubular product produced with a continuous periphery in all stages of manufacture. 4. Ordering Information 4.1 Orders for materials under this specification shall in- clude the following information as required: 4.1.1 Quantity, 4.1.2 Grade number (Section 1 and Table 1), 4.1.3 Nominal pipe size and schedule (Table 2), 4.1.4 Diameter tolerance (Table 3), 4.1.5 Length tolerance (see 9.3), 4.1.6 Method ofmanufacture and finish (Sections 5 and 10), 4.1.7 Product analysis, if required (Sections 6 and 7; Table 1 and Table 4), 4.1.8 Mechanical properties, (Sections 8, 14, 15, and 16 and Table 5), 4.1.9 Packaging (Section 23), 4.1.10 Inspection and test reports (Sections 19, 20 and 21), and 4.1.11 Product marking (Section 22). 5. Manufacture 5.1 Seamless pipe may be manufactured by any method that will yield a product meeting the requirements of this specifi- cation. 5.2 Unless specified, cold worked pipe shall be heat treated at a temperature of not less than 1000°F (538°C). Hot worked pipe finishing above 1400°F (760°C) need not be further heat treated. The minimum heat treat conditions for Grade 9, 18, and 28 pipe delivered in the stress relieved condition shall be 600°F (316°C) for at least 30 min. 5.2.1 Grade 5, Grade 9, Grade 18, Grade 19, Grade 20, Grade 21, Grade 23, Grade 24, Grade 25, Grade 28, Grade 29, Grade 35, Grade 36, and Grade 38 alloys may be supplied in the following conditions: 5.2.1.1 Grade 5, Grade 23, Grade 24, Grade 25, Grade 29, Grade 35, or Grade 36—annealed or aged condition, 5.2.1.2 Grade 9, Grade 18, Grade 28, or Grade 38—cold- worked and stress-relieved or annealed, 5.2.1.3 Grade 9, Grade 18, Grade 23, Grade 28, or Grade 29—transformed-beta condition, and 5.2.1.4 Grade 19, Grade 20, or Grade 21—solution-treated or solution-treated and aged. 6. Chemical Requirements 6.1 The grades of titanium and titanium alloy metal covered by this specification shall conform to the requirements of the chemical compositions prescribed in Table 1. 6.1.1 The elements listed in Table 1 are intentional alloy additions or elements which are inherent to the manufacture of titanium sponge, ingot or mill product. 6.1.1.1 Elements other than those listed in Table 1 are deemed to be capable of occurring in the grades listed in Table 1 by and only by way of unregulated or unanalyzed scrap additions to the ingot melt. Therefore, product analysis for elements not listed in Table 1 shall not be required unless specified and shall be considered to be in excess of the intent of this specification. 6.1.2 Elements intentionally added to the melt must be identified, analyzed and reported in the chemical analysis. 6.2 When agreed upon by the producer and purchaser and requested by the purchaser in his written purchase order, chemical analysis shall be completed for specific residual elements not listed in this specification.ASTM B861 pdf download.