1、Designation: B348 11Standard Specification forTitanium and Titanium Alloy Bars and Billets1This standard is issued under the fixed designation B348; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A numbe
2、r in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specification2covers annealed titanium and tita-nium
3、alloy bars and billets as follows:1.1.1 Grade 1Unalloyed titanium,1.1.2 Grade 2Unalloyed titanium,1.1.2.1 Grade 2HUnalloyed titanium (Grade 2 with 58ksi minimum UTS),1.1.3 Grade 3Unalloyed titanium,1.1.4 Grade 4Unalloyed titanium,1.1.5 Grade 5Titanium alloy (6 % aluminum, 4 % vana-dium),1.1.6 Grade
4、6Titanium alloy (5 % aluminum, 2.5 % tin),1.1.7 Grade 7Unalloyed titanium plus 0.12 to 0.25 %palladium,1.1.7.1 Grade 7HUnalloyed titanium plus 0.12 to 0.25 %palladium (Grade 7 with 58 ksi minimum UTS),1.1.8 Grade 9Titanium alloy (3 % aluminum, 2.5 % va-nadium),1.1.9 Grade 11Unalloyed titanium plus 0
5、.12 to 0.25 %palladium,1.1.10 Grade 12Titanium alloy (0.3 % molybdenum,0.8 % nickel),1.1.11 Grade 13Titanium alloy (0.5 % nickel, 0.05 %ruthenium),1.1.12 Grade 14Titanium alloy (0.5 % nickel, 0.05 %ruthenium),1.1.13 Grade 15Titanium alloy (0.5 % nickel, 0.05 %ruthenium),1.1.14 Grade 16Unalloyed tita
6、nium plus 0.04 to 0.08 %palladium,1.1.14.1 Grade 16HUnalloyed titanium plus 0.04 to0.08 % palladiumm (Grade 16 with 58 ksi minimum UTS),1.1.15 Grade 17Unalloyed titanium plus 0.04 to 0.08 %palladium,1.1.16 Grade 18Titanium alloy (3 % aluminum, 2.5 %vanadium) plus 0.04 to 0.08 % palladium,1.1.17 Grad
7、e 19Titanium alloy (3 % aluminum, 8 %vanadium, 6 % chromium, 4 % zirconium, 4 % molybdenum),1.1.18 Grade 20Titanium alloy (3 % aluminum, 8 %vanadium, 6 % chromium, 4 % zirconium, 4 % molybdenum)plus 0.04 %0.08 % palladium,1.1.19 Grade 21Titanium alloy (15 % molybdenum, 3 %aluminum, 2.7 % niobium, 0.
8、25 % silicon),1.1.20 Grade 23Titanium alloy (6 % aluminum, 4 %vanadium with extra low interstitial elements, ELI),1.1.21 Grade 24Titanium alloy (6 % aluminum, 4 %vanadium) plus 0.04 % to 0.08 % palladium,1.1.22 Grade 25Titanium alloy (6 % aluminum, 4 %vanadium) plus 0.3 % to 0.8 % nickel and 0.04 %
9、to 0.08 %palladium,1.1.23 Grade 26Unalloyed titanium plus 0.08 to 0.14 %ruthenium,1.1.23.1 Grade 26HUnalloyed titanium plus 0.08 to0.14 % ruthenium (Grade 26 with 58 ksi minimum UTS),1.1.24 Grade 27Unalloyed titanium plus 0.08 to 0.14 %ruthenium,1.1.25 Grade 28Titanium alloy (3 % aluminum, 2.5 %vana
10、dium plus 0.080.14 % ruthenium),1.1.26 Grade 29Titanium alloy (6 % aluminum, 4 %vanadium, extra low interstitial, ELI plus 0.08 to 0.14 %ruthenium),1.1.27 Grade 30Titanium alloy (0.3 % cobalt, 0.05 %palladium),1.1.28 Grade 31Titanium alloy (0.3 % cobalt, 0.05 %palladium),1.1.29 Grade 32Titanium allo
11、y (5 % aluminum, 1 % tin,1 % zirconium, 1 % vanadium, 0.8 % molybdenum),1.1.30 Grade 33Titanium alloy (0.4 % nickel, 0.015 %palladium, 0.025 % ruthenium, 0.15 % chromium),1.1.31 Grade 34Titanium alloy (0.4 % nickel, 0.015 %palladium, 0.025 % ruthenium, 0.15 % chromium),1.1.32 Grade 35Titanium alloy
12、(4.5 % aluminum, 2 %molybdenum, 1.6 % vanadium, 0.5 % iron, 0.3 % silicon),1This specification is under the jurisdiction of ASTM Committee B10 onReactive and Refractory Metals and Alloys and is the direct responsibility ofSubcommittee B10.01 on Titanium.Current edition approved July 1, 2011. Publish
13、ed July 2011. Originally approvedin 1959. Last previous edition approved in 2010 as B348 10. DOI: 10.1520/B0348-11.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SB-348 in Section II of that Code.1*A Summary of Changes section appears at the end of this standard.Co
14、pyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.1.1.33 Grade 36Titanium alloy (45 % niobium),1.1.34 Grade 37Titanium alloy (1.5 % aluminum), and1.1.35 Grade 38Titanium alloy (4 % aluminum, 2.5 %vanadium, 1.5 % iron).NOTE 1H grade materi
15、al is identical to the corresponding numericgrade (that is, Grade 2H = Grade 2) except for the higher guaranteedminimum UTS, and may always be certified as meeting the requirementsof its corresponding numeric grade. Grades 2H, 7H, 16H, and 26H areintended primarily for pressure vessel use.The H grad
16、es were added in response to a user association request basedon its study of over 5200 commercial Grade 2, 7, 16, and 26 test reports,where over 99 % met the 58 ksi minimum UTS.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalco
17、nversions to SI units that are provided for information onlyand are not considered standard.2. Referenced Documents2.1 ASTM Standards:3E8 Test Methods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE539 Test
18、Method for Analysis of Titanium Alloys byX-Ray Fluorescence SpectrometryE1409 Test Method for Determination of Oxygen andNitrogen in Titanium and Titanium Alloys by the Inert GasFusion TechniqueE1447 Test Method for Determination of Hydrogen inTitanium and Titanium Alloys by Inert Gas Fusion Ther-ma
19、l Conductivity/Infrared Detection MethodE1941 Test Method for Determination of Carbon in Refrac-tory and Reactive Metals and Their Alloys by CombustionAnalysisE2371 Test Method for Analysis of Titanium and TitaniumAlloys by Atomic Emission Plasma SpectrometryE2626 Guide for Spectrometric Analysis of
20、 Reactive andRefractory Metals3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 bar, na hot rolled, forged, extruded or cold workedsemifinished solid section product whose cross sectional area isequal to or less than 16 in.2(10 323 mm2); rectangular bar mustbe less than or equal
21、 to 10 in. (254 mm) in width and greaterthan 0.1875 in. (4.8 mm) in thickness.3.1.1.1 DiscussionExtruded bar has been approved foruse on unalloyed titanium grades 1, 2, 3 and 4 only. Othergrades may be produced via the extrusion process withagreement between the producer and the purchaser.3.1.2 bill
22、et, na solid semifinished section hot worked orforged from an ingot, with a cross sectional area greater than 16in.2(10 323 mm2) whose width is less than five times itsthickness.4. Ordering Information4.1 Orders for material under this specification shall includethe following information as applicab
23、le:4.1.1 Grade number (Section 1),4.1.2 Product classification (Section 3),4.1.3 Chemistry (Table 1),4.1.4 Mechanical properties (Table 2),4.1.5 Marking (Section 16),4.1.6 Finish (Section 8),4.1.7 Packaging (Section 16),4.1.8 Required reports (Section 15), and4.1.9 Disposition of rejected material (
24、Section 14).5. Chemical Composition5.1 The grades of titanium and titanium alloy metal coveredby this specification shall conform to the requirements as tochemical composition prescribed in Table 1.5.1.1 The elements listed in Table 1 are intentional alloyadditions or elements which are inherent to
25、the manufacture oftitanium sponge, ingot or mill product.5.1.1.1 Elements other than those listed in Table 1 aredeemed to be capable of occurring in the grades listed in Table1 by and only by way of unregulated or unanalyzed scrapadditions to the ingot melt. Therefore, product analysis forelements n
26、ot listed in Table 1 shall not be required unlessspecified and shall be considered to be in excess of the intentof this specification.5.1.2 Elements intentionally added to the melt must beidentified, analyzed and reported in the chemical analysis.5.2 When agreed upon by the producer and purchaser an
27、drequested by the purchaser in his written purchase order,chemical analysis shall be completed for specific residualelements not listed in this specification.5.3 Product AnalysisProduct analysis tolerances do notbroaden the specified heat analysis requirements, but covervariations between laboratori
28、es in the measurement of chemi-cal content. The manufacturer shall not ship material which isoutside the limits specified in Table 1 for the applicable grade.Product analysis limits shall be as specified in Table 3.6. Mechanical Properties6.1 Material supplied under this specification shall conformt
29、o the mechanical property requirements given in Table 2,asapplicable.6.2 Tension testing specimens are to be machined and testedin accordance with Test Methods E8. Tensile properties shallbe determined using a strain rate of 0.003 to 0.007 in./in./minthrough the specified yield strength, and then in
30、creasing therate so as to produce failure in approximately one additionalminute.7. Dimensions, Weight, and Permissible Variations7.1 SizeTolerances on titanium and titanium alloy mate-rial covered by this specification shall be as specified in Tables4-11, as applicable.7.2 WeightQuantity extras are
31、applicable to individualitems of a grade, thickness, width, and length ordered at onetime for shipment at one time to one destination. Different3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards v
32、olume information, refer to the standards Document Summary page onthe ASTM website.B348 112TABLE 1 Chemical RequirementsComposition, Weight PercentA,B,C,D,EGradeCarbon,max.Oxygenrangeor max.Nitrogen,max.Hydrogen,max.Ironrangeor max. Aluminum Vanadium Palladium Ruthenium Nickel Molybdenum Chromium Co
33、balt Zirconium Niobium Tin SiliconOtherElements,max.eachOtherElements,max.total1 0.08 0.18 0.03 0.015 0.20 - - - - - - - - - - - - 0.1 0.42 0.08 0.25 0.03 0.015 0.30 - - - - - - - - - - - - 0.1 0.42H 0.08 0.25 0.03 0.015 0.30 - - - - - - - - - - - - - - - - - - - - - - - - 0.1 0.43 0.08 0.35 0.05 0.
34、015 0.30 - - - - - - - - - - - - 0.1 0.44 0.08 0.40 0.05 0.015 0.50 - - - - - - - - - - - - 0.1 0.45 0.08 0.20 0.05 0.015 0.40 5.5-6.75 3.5-4.5 - - - - - - - - - - - - - - - - - - - - 0.1 0.46 0.08 0.20 0.03 0.015 0.50 4.0-6.0 - - - - - - - - - - - - - - - - - - 2.0-3.0 - - 0.1 0.47 0.08 0.25 0.03 0
35、.015 0.30 - - 0.12-0.25 - - - - - - - - - 0.1 0.47H 0.08 0.25 0.03 0.015 0.30 - - - - 0.12-0.25 - - - - - - - - - - - - - - - - - - 0.1 0.49 0.08 0.15 0.03 0.015 0.25 2.5-3.5 2.0-3.0 - - - - - - - - - - 0.1 0.411 0.08 0.18 0.03 0.015 0.20 - - - - 0.12-0.25 - - - - - - - - - - - - - - - - - - 0.1 0.4
36、12 0.08 0.25 0.03 0.015 0.30 - - - - - - - - 0.6-0.9 0.2-0.4 - - - - - - - - - - - - 0.1 0.413 0.08 0.10 0.03 0.015 0.20 - - - - - - 0.04-0.06 0.4-0.6 - - - - - - - - - - - - - - 0.1 0.414 0.08 0.15 0.03 0.015 0.30 - - - - - - 0.04-0.06 0.4-0.6 - - - - - - - - - - - - - - 0.1 0.415 0.08 0.25 0.05 0.
37、015 0.30 - - - - - - 0.04-0.06 0.4-0.6 - - - - - - - - - - - - - - 0.1 0.416 0.08 0.25 0.03 0.015 0.30 - - - - 0.04-0.08 - - - - - - - - - - - - - - - - - - 0.1 0.416H 0.08 0.25 0.03 0.015 0.30 - - - - 0.04-0.08 - - - - - - - - - - - - - - - - - - 0.1 0.417 0.08 0.18 0.03 0.015 0.20 - - - - 0.04-0.0
38、8 - - - - - - - - - - - - - - - - - - 0.1 0.418 0.08 0.15 0.03 0.015 0.25 2.5-3.5 2.0-3.0 0.04-0.08 - - - - - - - - - - - - - - - - - - 0.1 0.419 0.05 0.12 0.03 0.02 0.30 3.0-4.0 7.5-8.5 - - - - - - 3.5-4.5 5.5-6.5 - - 3.5-4.5 - - - - - - 0.15 0.420 0.05 0.12 0.03 0.02 0.30 3.0-4.0 7.5-8.5 0.04-0.08
39、 - - - - 3.5-4.5 5.5-6.5 - - 3.5-4.5 - - - - - - 0.15 0.421 0.05 0.17 0.03 0.015 0.40 2.5-3.5 - - - - - - - - 14.0-16.0 - - - - - - 2.2-3.2 - - 0.15-0.25 0.1 0.423 0.08 0.13 0.03 0.0125 0.25 5.5-6.5 3.5-4.5 - - - - - - - - - - - - - - - - - - - - 0.1 0.424 0.08 0.20 0.05 0.015 0.40 5.5-6.75 3.5-4.5
40、0.04-0.08 - - - - - - - - - - - - - - - - - - 0.1 0.425 0.08 0.20 0.05 0.015 0.40 5.5-6.75 3.5-4.5 0.04-0.08 - - 0.3-0.8 - - - - - - - - - - - - - - 0.1 0.426 0.08 0.25 0.03 0.015 0.30 - - - - - - 0.08-0.14 - - - - - - - - - - - - - - - - 0.1 0.426H 0.08 0.25 0.03 0.015 0.30 - - - - - - 0.08-0.14 -
41、- - - - - - - - - - - - - - - 0.1 0.427 0.08 0.18 0.03 0.015 0.20 - - - - - - 0.08-0.14 - - - - - - - - - - - - - - - - 0.1 0.428 0.08 0.15 0.03 0.015 0.25 2.5-3.5 2.0-3.0 - - 0.08-0.14 - - - - - - - - - - - - - - - - 0.1 0.429 0.08 0.13 0.03 0.0125 0.25 5.5-6.5 3.5-4.5 - - 0.08-0.14 - - - - - - - -
42、 - - - - - - - - 0.1 0.430 0.08 0.25 0.03 0.015 0.30 - - - - 0.04-0.08 - - - - - - - - 0.20-0.80 - - - - - - - - 0.1 0.431 0.08 0.35 0.05 0.015 0.30 - - - - 0.04-0.08 - - - - - - - - 0.20-0.80 - - - - - - - - 0.1 0.432 0.08 0.11 0.03 0.015 0.25 4.5-5.5 0.6-1.4 - - - - - - 0.6-1.2 - - - - 0.6-1.4 - -
43、 0.6-1.4 0.06-0.14 0.1. 0.433 0.08 0.25 0.03 0.015 0.30 - - - - 0.01-0.02 0.02-0.04 0.35-0.55 - - 0.1-0.2 - - - - - - - - - - 0.1 0.434 0.08 0.35 0.05 0.015 0.30 - - - - 0.01-0.02 0.02-0.04 0.35-0.55 - - 0.1-0.2 - - - - - - - - - - 0.1 0.435 0.08 0.25 0.05 0.015 0.20-0.80 4.0-5.0 1.1-2.1 - - - - - -
44、 1.5-2.5 - - - - - - - - - - 0.20-0.40 0.1 0.436 0.04 0.16 0.03 0.015 0.03 - - - - - - - - - - - - - - - - - - 42.0-47.0 - - - - 0.1 0.437 0.08 0.25 0.03 0.015 0.30 1.0-2.0 - - - - - - - - - - - - - - - - - - - - - - 0.1 0.438 0.08 0.20-0.30 0.03 0.015 1.2-1.8 3.5-4.5 2.0-3.0 - - - - - - - - - - - -
45、 - - - - - - - - 0.1 0.4AAt minimum, the analysis of samples from the top and bottom of the ingot shall be completed and reported for all elements listed for the respective grade in this table.BFinal product hydrogen shall be reported. Ingot hydrogen need not be reported. Lower hydrogen may be obtai
46、ned by negotiation with the manufacturer.CSingle values are maximum. The percentage of titanium is determined by difference.DOther elements need not be reported unless the concentration level is greater than 0.1 % each, or 0.4 % total. Other elements may not be added intentionally. Other elements ma
47、y be present in titanium or titaniumalloys in small quantities and are inherent to the manufacturing process. In titanium these elements typically include aluminum, vanadium, tin, chromium, molybdenum, niobium, zirconium, hafnium, bismuth, ruthenium,palladium, yttrium, copper, silicon, cobalt, tanta
48、lum, nickel, boron, manganese, and tungsten.EThe purchaser may, in the written purchase order, request analysis for specific elements not listed in this specification.B348113TABLE 2 Tensile RequirementsAGradeTensile Strength, min Yield Strength (0.2 % Offset) min or range Elongation in 4D,min, %Redu
49、ction of Area,min %ksi MPa ksi MPa1 35 240 20 138 24 302 50 345 40 275 20 302HB,C58 400 40 275 20 303 65 450 55 380 18 304 80 550 70 483 15 255 130 895 120 828 10 256 120 828 115 795 10 257 50 345 40 275 20 307HB,C58 400 40 275 20 309 90 620 70 483 15 259D90 620 70 483 12 2511 35 240 20 138 24 3012 70 483 50 345 18 2513 40 275 25 170 24 3014 60 410 40 275 20 3015 70 483 55 380 18 2516 50 345 40 275 20 3016HB,C58 400 40 275 20 3017 35 240 20 138 24 3018 90 620 70
