1、UDC 669.295-462.3 : 620.1 DEUTSCHE NORM November 1990 I Seamless circular titanium and titanium alloy tubes Technical delivery conditions IDIN I 17861 Nahtlose kreisfrmige Rohre aus Titan und Titanlegierungen; technische Lieferbedingungen In keeping with current practice in standards published by th
2、e International Organization for Standardization (/SO), a comma has been used throughout as the decimal marker. Dimensions in mm Contents Page 1 Scope and field of application 1 2 Designation and ordering 1 2.1 Standard designation . 2 2.3 Optional order details 2 3 Requirements . 2 3.1 Manufacturin
3、g process . 2 3.2 Chemical composition 2 3.2.1 Ladle analysis 2 3.2.2 Product analysis 2 3.2.3 Permissible deviations 2 3.3 Mechanical properties 2 3.4 Dimensions, tolerances and mass . 5 3.4.1 Preferred dimensions . 5 3.4.2 Mass per unit length 5 3.4.3 Tolerances . 5 3.5 Material condition and surf
4、ace appearance 7 3.6 Tightness 7 4 Testing . 7 4.1 Inspection documents 7 4.2 Scopeoftesting . 7 4.2.1 Size of batches . 7 4.2.2 Sample (tube) 7 4.2.3 Scope of testing for test class 1 . 7 4.2.4 Scope of testing for test class 2 . 7 2.2 Essential order details 2 1 Scope and field of application 1.1
5、This standard specifies technical delivery conditions for seamless circular titanium and titanium alloy (titanium, for short) tubes. 1.2 Titanium and low alloytitanium tubes are intended pri- marily to be used in the construction of chemical plant and for products which are required to be resistant
6、to corrosion (e.9. in the chemical, paper, pulp, textile and food industries, for power plants, maritime structures, electroplating and surface refinement, as well as in applications in medicine). 1.3 High-alloy titanium tubes are mainly used for applica- tions where a low mass is a design factor or
7、 nonmagnetic properties are required (e.g. in mechanical engineering, precision engineering, optics, measurement and control engineering, electrical engineering, and applications in medicine). Page 4.3.1 Chemical composition 7 4.3.2 Tensile test . 8 4.3.3 Flattening, ring expanding and drift expandi
8、ng tests . 8 4.4 Test procedures 8 4.4.1 Chemical composition 8 4.4.2 Tensile test . 8 4.4.3 Determination of 1 % proof strength 8 4.4.4 Flattening test 8 4.4.5 Drift expanding test . 8 4.4.6 Ring expanding test . 8 4.4.7 Tightness test 8 4.4.8 Non-destructive testing . 8 4.4.9 Visual check . 8 4.4.
9、1 O Check of dimensional accuracy . 8 4.4.1 1 Acceptance inspection . 8 4.4.1 2 Corrective action 8 4.4.13 Retests . 10 4.5 Invalid test results 10 5 Marking . 10 6 Packaging . 10 4.3 Sampling 7 Standards and other documents referred to 10 1.4 See DIN 65 039 for technical delivery conditions for tit
10、anium tubes for use in aerospace. 1.5 Titanium tubes are to comply with the specifications given in this standard unless particularfields arecovered by other codes of practice (e.g. Technische Regeln Druck- behlter (Codes of practice for pressure vessels), Merk- bltter der Arbeitsgemeinschaft Druckb
11、ehlter (Instruction sheets issued by the Pressure Vessels Study Group), Werk- stoff-ieistungsbltter der Luftfahrt (Materials specifications for aviation). 1.6 Depending on the particular application, tubes shall be tested to either test class 1 or 2, the latter involving more comprehensive testing.
12、2 Designation and ordering When ordering, a distinction shall be made between essential (cf.subclause 2.2) and optional (cf.subclause 2.3) order details. Continued on pages 2 to 11 uth Verlag GmbH, Berlin, has the exclusive right of sale for German Standards (DIN-Normen). DIN 17 861 Engl. Price grou
13、p 9 10.92 Sales No. O109 Page 2 DIN 17861 2.1 Standard designation The standard designation shall give, in the following order: a) name of product (tube); b) DIN number (DIN 17861); c) characteristic dimensions (outside diameter x wall thickness); d) material designation or number; e) symbol denotin
14、g condition on supply. Example: Aseamless circular tube complying with this standard, with an outside diameter of 60,3mm and a wall thickness of 2 mm, made of a material identified by material designation Til or material number 3.7025, condition on supply b, shall be designated: or Tube DIN 17861 -6
15、03 x 2-Til - b Tube DIN 17 861 - 60,3 x 2 - 3.7025 - b 2.2 Essential order details The following order details are essential and have been marked 0 where they appear in the text. 2.2.1 Quantity (e.g. number of items, mass or total length). 2.2.2 0 Name of product (tube). 2.2.3 0 DIN number (DIN 1786
16、1) 2.2.4 Characteristic dimensions (e.g. outside diameter, wall thickness, length and type of length (cf. table 5). 2.2.5 0 Material designation or number (cf. table 1). 2.2.6 Symbol denoting condition on supply (cf. sub- clause 3.5). 2.2.7 0 Test class (cf. clause 4). 2.2.8 0 Type of DIN 50049 insp
17、ection document (cf. subclause 4.1). 2.2.9 0 In the case of third party inspection, the testing agency and, if applicable,any specifications to be complied with. 2.2.10 Example of essential order details 1000 m of seamless circulartube complying with this stand- ard, with an outside diameter of 60,3
18、 mm, a wall thickness of 2 mm, in specified lengths of 6000 mm, made of a material identified by material designation Til or material number 3.7025, condition on supply b, test class 1, to be supplied with a DIN 50049 - 3.1 B inspection document, shall be ordered as: 1000 m tube DIN 17 86l- 60,3 x 2
19、 x 6000 specified -Til - b - test class 1-DIN50 049-3.1 B inspection document 2.3 Optional order details The essential order details may, if so agreed, be supple- mented by one or more of the following items, marked where they appear in the text. 2.31 0. Manufacturing process used (cf. subclause 3.1
20、.2). 2.3.2 0. Chemical composition as determined by prod- uct analysis (cf. subclause 3.2.2). 2.3.3 00 Outside diameter and wall thickness if other than specified in table 3 (cf.subclauses 3.4.1 and 3.4.3) and any further dimensions. 2.3.4 0. Determination of 0,2% proof strength instead of 1 % proof
21、 strength at ambient temperature (cf. table 1). 2.3.5 00 Determination of elevated temperature 1 Yo proof strength (cf. subclause 4.4.3). 2.3.6 0. Tightness test (cf. subclause 4.4.7). 2.3.7 0. Non-destructive testing (ci. subclause 4.4.8.1). 2.3.8 0. The presence of the purchasers representative du
22、ring non-destructive testing (cf. subclause 4.4.8.2). 2.3.9 0. Continuous marking (cf. subclause 5.3). 2.3.10 Example of optional order details 1000 rn of seamless circulartube complying with this stand- ard, with an outside diameter of 60,3 mm, a wall thickness of 2 mm, in specified lengths of 6000
23、 mm, made of a mate- rial identified by material designation Til or material number 3.7025, condition on supply h, test class 2, with 1 % proof strength determined at 200C, tested non-destructively for transverse imperfections in the presence of the purchasers representative, to be supplied with a D
24、IN 50 049 - 3.1 B inspection document, shall be ordered as: 1000 m tube DIN 17 861 - 60,3 x 2 x 6000 speci- fied - Til - h - test class 2 - 200 OC proof strength - tested for transverse imperfections in presence of purchasers representative - DIN 50 049 - 3.1 B inspection document 3 Requirements 3.1
25、 Manufacturing process 3.1.1 Tubes are normally to be produced from material melted in avacuum arc furnace by hot or cold rolling,extrud- ing or cold drawing, or a combination of these processes. 3.1.2 0. If so agreed, the purchaser shall be informed of the manufacturing process used. 3.2 Chemical c
26、omposition 3.2.1 Ladle analysis DIN 17 850 shall apply forthe chemical composition of tita- nium, and DIN 17851, for ihat of titanium alloys. 3.2.2 Product analysis 0. A product analysis may be agreed at the time of order- ing. Where such analysis is carried out, the specifications given in DIN 1785
27、0and DIN 17851, respectively,shall apply for the limit deviations for the product analysis from the limiting values specified for the ladle analysis. 3.2.3 Permissible deviations With the consent of the purchaser or his representative, minor deviations of the chemical composition from the limiting v
28、alues specified for the ladle analysis andlor prod- uct analysis are permitted, provided they do not adversely affect the mechanical properties of the tube. 3.3 Mechanical properties 3.3.1 The values of 0,2% and 1 % proof strength, tensile strength and elongation at fracture at ambient temperature s
29、hall comply with the values given in table 1. DIN 17861 Page 3 Material designation I number Minimum 0,2% Minimum 1 Oh Minimum elongation proof strength I), proof strength I), Tensile strength, at fracture, Ag, Rp0.2. Rp 1,Ot Rm longitudinal, as a in N/mm2 in N/mm2 in N/mm2 percentage Ti 1 Ti2 Ti3 I
30、 TilPd I 3.7225 I 1 80 I 200 I 290to410 I 30 I 3.7025 180 200 290 to 410 30 3.7035 250 270 390 to 540 22 3.7055 320 350 460 to 590 18 I I I Ti2Pd 1 3.7235 I 250 270 I 390 to 540 I 22 Ti AL 6V4 TiAL3V2,5 TiAl6V6Sn2 I I I Ti3Pd I 3.7255 I 320 350 I 460 to 590 I 18 3.71 65 830 min. 900 10 3.7195 520 mi
31、n. 620 152) Not specified. 3.71 75 930 min. 1000 8 I I I TiNiO,8MoO,3 I 3.7105 I 345 370 I min. 480 I 18 designation number Til 3.7025 Til Pd 3.7225 Ti2 3.7035 Ti2Pd 3.7235 Ti3 3.7055 Ti3Pd 3.7255 75 1 O0 150 200 250 300 - 195 180 150 110 90 255 235 195 145 115 105 300 275 220 165 130 115 Table 2. M
32、inimum vahes of elevated temperature 1 % proof strength for wall thicknesses up to 12,5 mm , Material Minimum 1% proof strength, Rpl,o, in N/mm2, at a temperature, in “C, of I The values given are based on the design parameters specified in VdV-Werkstoffbiatt (VdTV Materials sheet) 23012. The values
33、 shall apply for all conditions on supply specified in subclause 3.5.1, under the conditions specified in sub- clause 4.4.2. Note. The term heat treated condition(as used in table 6) means that the tubes have undergone a softening treatment. 3.3.2 If the tensile strength exceeds the upper limiting v
34、alues of the relevant range listed in table 1, the material shall still be deemed to be in compliance with the require- ments, provided that the minimum value of elongation at fracture is complied with. 3.3.3 e* Table 2 specifies minimum values of elevated temperature 1 YO proof strength, determinat
35、ion of which may be agreed at the time of ordering. 3.3.4 Tubes shall pass the flattening test, drift expanding test or ring expanding test (cf. subclauses 4.4.4,4.4.5 and 4.4.6) and shall not exhibit any imperfections such as scabs, laps or laminations. 3.3.5 Tubes,except those made ofTiAl6V4 alloy
36、, are suit- able for cold forming (e.g. bending). Note that cold forming may alter the mechanical and physical properties and affect corrosion resistance. 3.3.6 DIN 17869 (at present at the stage of draft) provides additional information on titanium alloys (e.g.with regard to elevated temperature te
37、nsile strength, physical properties, heat treatment, machinability, welding and other jointing processes). Page 4 DIN 17861 DIN 17861 Page 5 I Manufacturing process Cold formed Hot formed 3.4 Dimensions, tolerances and mass 3.4.1 Preferred dimensions Table 3 specifies the preferred outside diameters
38、 and wall thicknesses of tubes. 0. Other dimensions shall be the subject of agreement at the time of ordering. Note. Certain materials are not available in all sizes. 3.4.2 Mass per unit length 3.4.2.1 For the preferred dimensions given, the values of mass per unit length of titanium and titanium-pa
39、lladium alloy tubes are specified in table 3 and have been calculat- ed using the following equation: where G is the mass per unit length; da is the outside diameter, in mm; s is the wall thickness, in mm. The coefficient used in the above equation is based on a titanium density of 4,505 kg/dm3. In
40、the case of titanium alloys, the values given in table 3 shall, as a function of the relevant density, be corrected by the following factors: 1,008 for grade TiAIW6Sn2 (material number 3.7175); 0,995 for grade TiAI3V2.5 (material number 3.7195); 0,983 for grade TiAIW4 (material number 3.7165); 0,966
41、 for grade TiNi0,8MoO,3 (material number 3.7105). G = (da - s) . s .0,0141529 kglm Wall thickness, s Limit deviation of outside diameter, da s : da ratio Limit deviations Over up to 10,5%, but at least +0,1 mm - - 110%, but at least *0,2 mm o, 1 O0 - - +lo% 0,050 0.1 O0 + 12,5 Oio 0,025 0,050 115% -
42、 0,025 *20% 11 Yo, but at least *0,5mm 3.4.2.2 The tolerances on the mass per unit length, as a function of the nominal mass (as specified in table 3),shall be - for single tubes and - - 5% for the batch. 3.4.3 Tolerances 3.4.3.1 Outside diameter and wall thickness The outside diameter and wall thic
43、kness are subject to the limit deviations specified in table 4. The limit deviations for wall thickness include any differ- ences in wall thickness along the tube length. 0. Other limit deviations (e.g. in accordance with ASTM B 338) may be agreed at the time of ordering. 3.4.3.2 Circularity The dev
44、iation from circularity shall be within the limit devia- tions specified for the outside diameter. 3.4.3.3 Straightness Local deviations from straightness, as measured on a 1 m length of tube, shall not exceed 2 mm, the overall deviation from straightness being at most 15Vo over the relevant tube le
45、ngth. 3.4.3.4 Length The length of tubes is subject to the limit deviations spec- ified in table 5. c 10 Type of length Outside diameter Length Limit deviations Over up to Over up to I As manufactured length I All types I 2000 I 7000 I Not specified. Page 6 DIN 17 861 Table 6. Material condition and
46、 surface appearance Condition on supply (symbol) al Type of treatment Surface appearance Hot formed, not heat treated, not descaled Oxidized I Hot formed, not heat treated, descaled cllc2 Hot formed, heat treated, descaled (mechanically or by means of blasting andlor pickling) I I Bright (descaled)
47、Bright (descaled) b h m O I Hot formed, heat treated, not descaled Cold formed, heat treated in oxidic atmosphere, descaled (mechanically or by means of blasting and/or pickling) Cold formed, heat treated in inert gas or under vacuum Bright (descaled) Polished externally Bright (polished) Bright (de
48、scaled) I Oxidized Tensile test at ambient temperature 1 test piece taken from 1 test 4.42 tube, per batch. I Cold formed, heat treated in oxidic atmosphere 5 00 1 Bright (heat treated) 1 test piece 1 4.4.3 I - per cast and size. Tensile test at elevated temperature 6 Drift or ring expanding test Ta
49、ble 7. Tests, scope of testing and inspection documents for test classes 1 and 2 - Cf. table 8. 4.4.5 4.4,6 1 I Ladle analysis 1 analysis per cast. I 4.4.8 Non-destructive test for longitudinal imperfections 0. TProduct analysis - Inspection certificate B All tubes. 1 4.4.1 1 Check for dimensional accuracy 1 analysis per cast. or C or 4.4.10 All tubes. inspection report Inspection certificate B 1 determination per cast or heat 3 I Determination of H2 content I 4.4.1 1 treatment batch, Flattening test 1 test piece taken from 1 test I 444 I tube, per batch. Inspec
