1、Designation: A 908 03 (Reapproved 2008)1Standard Specification forStainless Steel Needle Tubing1This standard is issued under the fixed designation A 908; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A
2、 number 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.1NOTEThe units statement in 1.3 was corrected editorially in Octo
3、ber 2008.1. Scope1.1 This specification covers austenitic, stainless steel,needle tubing in hard-drawn tempers for industrial applica-tions.1.2 In general, needle tubing describes small-diameter tub-ing with outside diameters (ODs) in the range of 0.008 to 0.203in. (0.2 to 5.2 mm) with nominal wall
4、thicknesses in the rangeof 0.002 to 0.015 in. (0.05 to 0.4 mm). Needle tubing gages arenormally 6 through 33.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are
5、not considered standard.2. Referenced Documents2.1 ASTM Standards:2A 1016/A 1016M Specification for General Requirementsfor Ferritic Alloy Steel, Austenitic Alloy Steel, and Stain-less Steel Tubes3. Ordering Information3.1 Orders for material in accordance with this specificationshould include the f
6、ollowing, as required, to describe thematerial adequately:3.1.1 Quantity (feet, metres, or number of lengths),3.1.2 Gauge or size (outside diameter and minimum wallthickness),3.1.3 Length (specific or random), and3.1.4 Test report required (see the section on certification inSpecification A 1016/A 1
7、016M).4. Process4.1 An electric furnace or other similar primary meltingprocess with or without degassing or refining may be used.5. General Requirements5.1 Material furnished in accordance with this specificationshall conform to the applicable requirements of the currentedition of Specification A 1
8、016/A 1016M, unless otherwiseprovided herein.6. Manufacture6.1 Needle tubing shall be made by the seamless or weldedand drawn process and shall be furnished in the hard-drawntemper condition.7. Heat Treatment7.1 Unless otherwise specified by the purchaser, no heattreatment is required.8. Chemical Co
9、mposition8.1 Stainless steel, Type 304, UNS S30400, in accordancewith Table 1 shall be used.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.10 on Stainless and Alloy Steel Tubular Prod
10、ucts.Current edition approved Oct. 1, 2008. Published January 2009. Originallyapproved in 1991. Last previous edition approved in 2003 as A 908 03.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandard
11、s volume information, refer to the standards Document Summary page onthe ASTM website.TABLE 1 Chemical RequirementsCarbon 0.08 maxManganese 2.00 maxPhosphorous 0.040 maxSulfur 0.030 maxSilicon 0.75 maxChromium 18.020.0Nickel 8.011.0TABLE 2 Tensile RequirementsTensile strength, ksi (MPa) 150200 (1030
12、1370)1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.8.2 Heat AnalysisAn analysis of each heat of steel shallbe made by the manufacturer from samples made during thepour. The chemical composition thus determined shall meet therequire
13、ments of Table 1.8.3 Product AnalysisAn analysis may be made by thepurchaser from finished tubing. The chemical composition thusdetermined shall meet the requirements of Table 1.9. Mechanical Properties9.1 Tensile RequirementsThe tubing shall meet the tensileproperties specified in Table 2. Yield st
14、rength, elongation, andhardness tests are not required for needle tubing.9.2 Number of TestsTwo tension tests for each 5000 ft ofproduct per heat shall be performed.10. Dimensions10.1 Sizes and TolerancesNeedle tubing sizes and dimen-sions shall be in accordance with Table 3.11. Keywords11.1 needle
15、tubing; stainless steelASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringem
16、ent of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or
17、 for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views kn
18、own to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 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 AS
19、TM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).TABLE 3 Sizes and TolerancesGauge No. OD, in.OD Tolerance,in. (6)NominalWall, in.Wall Tolerance,in. (6)6 0.203 0.001 0.015 0.0017 0.180 0.001 0.015 0.0018 0.1
20、65 0.001 0.015 0.0019 0.148 0.001 0.015 0.00110 0.134 0.001 0.014 0.00111 0.120 0.001 0.013 0.00112 0.109 0.001 0.012 0.00113 0.095 0.001 0.012 0.00114 0.083 0.001 0.010 0.00115 0.072 0.0005 0.009 0.000516 0.065 0.0005 0.009 0.000517 0.059 0.0005 0.009 0.000518 0.050 0.0005 0.0085 0.000519 0.0425 0.
21、0005 0.00775 0.000520 0.0355 +0.0005/0.000 0.00625 +0.000/0.000521 0.032 +0.0005/0.000 0.00625 +0.000/0.000522 0.028 +0.0005/0.000 0.00625 +0.000/0.000523 0.025 +0.0005/0.000 0.00625 +0.000/0.000524 0.022 +0.0005/0.000 0.00525 +0.000/0.000525 0.020 +0.0005/0.000 0.00525 +0.000/0.000526 0.018 +0.0005
22、/0.000 0.00425 +0.000/0.000527 0.016 +0.0005/0.000 0.00425 +0.000/0.000528 0.014 +0.0005/0.000 0.0035 0.0002529 0.013 +0.0005/0.000 0.003 0.0002530 0.012 +0.0005/0.000 0.003 0.0002531 0.010 +0.0005/0.000 0.0025 0.0002532 0.009 +0.0005/0.000 0.0025 0.0002533 0.008 +0.0005/0.000 0.002 0.00025A 908 03 (2008)12
