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1、U S S R S T A T E S T A N D A R D TITANIUM AND TITANIUM-ALLOY WELDING WIRE SPECIFICATIONS GOST 27265 87 Official Edition USSR STATE COMMITTEE FOR STANDARDS Moscow UDC 621 791.042:669.295.5:006.354Group B74 U S S R S T A T E S T A N D A R D TITANIUM AND TITANIUM-ALLOY WELDING WIRE Specifications OKP
2、(All-Union Product Classification Code) 18 2531 GOST 27265 87 Term from 01.01.89 to 01.01.94 Failure to comply with this Standard will result in legal proceedings This Standard applies to general-purpose titanium and titanium-alloy welding wire. 1. TECHNICAL REQUIREMENTS 1.1. The wire shall be manuf
3、actured to meet the requirements of this Standard in accordance with production documentation approved in accordance with the established procedure. 1.2. Key parameters and dimensions 1.2.1. The wire diameters and its maximum deviations shall meet the requirements specified in table 1. Official Edit
4、ionReprinting is prohibited # Standards Publishing House, 1987 p. 2 GOST 27265-87 Table 1 Stipulated diameter, mm Maximum wire diameter deviations, mm Cross-section area, mm2 1.0-0.100.78 1.21.13 1.41.54 1.62.01 1.82.54 2.03.14 2.54.90 3.0 -0.12 7.07 3.59.62 4.012.57 5.019.63 6.0 -0.16 28.27 7.0-0.2
5、038.48 Not e. Maximum deviations of the wire diameter for alloys 201 and 202 shall be: 0.16 mm for diameters from 2.0 to 3.5 mm 0.20 mm for diameters from 4.0 to 7.0 mm 1.2.2. Depending on the alloy grade, the wire shall be manufactured in the size limits specified in table 2. Table 2 Alloy gradeWir
6、e diameter, mm BT100 41 4 From 1.0 to 7.0 incl. 2 7 From 1.2 to 7.0 incl. 2 6 2 From 1.6 to 7.0 incl. 201 BT202 From 2.0 to 7.0 incl. Table 3 Chemical composition, % Basic componentsImpurities, %, no more than Alloy grade Titanium Aluminu m Manganese Molyb- denum Vana- dium Zirco- nium SiliconIronCa
7、rbonOxygen Nitro- gen Hydro gen Total other impurities BT100BaseNo more than 0.080.150.050.120.030.0030.10 0.20 2As above2.0 to 3.0-0.100.150.050.120.040.0030.30 2As above1.5 to 2.5-1.0 to 2.0-0.100.200.070.120.040.0020.30 7As above1.8 to 2.5-2.0 to 3.00.100.150.050.120.030.0020.30 4As above3.5 to 5
8、.0 0.8 to 2.0No more than 0.300.100.150.050.0060.30 0.300.12 41As above1.5 to 2.5 0.7 to 2.0No more than 0.300.100.150.050.0060.30 0.300.12 2As above3.5 to 4.5-2.5 to 3.5 1.0 to 2.00.100.150.050.120.040.0030.30 6As above3.5 to 4.5-2.5 to 3.5-0.100.150.050.120.040.0030.30 201As above2.0 to 3.0-0.5 to
9、 1.5 0.5 to 1.5 1.0 to 2.00.100.150.050.120.040.0030.30 202As above3.5 to 4.5-0.5 to 1.5 0.5 to 1.5 1.0 to 2.00.100.150.050.120.040.0030.30 Not e. At the customers request, the fraction of total mass of hydrogen in BTl-00 grade titanium wire shall not exceed 0.002 %. GOST 27265 87 p. 3 -,-,- p. 4 GO
10、ST 27265 - 87 1.2.3. The maximum deviations of wire diameter shall be observed despite wire out-of- roundness. An example of a conventional designation for OT4-1 grade titanium-alloy 4.0 mm diameter wire 41 4,0 2726587 1.3. Characterist ics 1.3.1. The wire shall be manufactured of titanium of grade
11、BT1-00 and titanium alloys of the grades 2, 2, 7, 4, OT41, 2, 6, 201, and 202 with chemical compositions as specified in table 3. 1.3.2. The wire shall be manufactured in pickled and degasified condition. 1.3.3. The wire surface shall be clean and light without tempering colors, dark spots, and pick
12、ling failures. Small tears with dark pickling failures are allowed on the surface of wire of alloys of the grades 20-1 and 20-2. Small tears, marks, and pinches with a depth not exceeding the values specified in table 4 are allowed on the wire surface. Table 4 Maximum depth of wire defects for grade
13、s, mm Wire diameter BTl0027 4, 4 1 2. 6, 2 20 1, 20 2 1.00.100.20 1.20.200.250.250.20 1.40.200.250.300.30 1.60.200.250.300.300.40 1.80.200.250.300.300.40 2.00.200.250.300.300.400.40 2.50.250.350.400.400.500.50 3.00.250.350.400.400.500.50 3.50.300.400.500.500.600.60 4.00.300.400.500.500.600.60 5.00.4
14、00.500.600.600.700.70 6.00.500.600.700.700.800.80 7.00.500.600.700.700.800.80 Not e. Separate defects with depths exceeding the norms by 0.1 and 0.2 mm for wire diameters up to 3.0 and above 3.0 mm, respectively, are allowed on the wire surface. Under metallographic analysis, the number of macrosect
15、ions exceeding the depth of defect location shall not be more than 10 % of the total number of macrosections in the inspected batch. 1.3.4. It is allowed to correct surface defects and remove dirt by cleaning and pickling the wire prior to degassing. -,-,- GOST 27265-87 p. 5 After degassing it is al
16、lowed to clean only local dirty spots. Pickling the individual coils followed by repeated degassing is allowed. 1.3.5. The wire shall be wound on coils to an external diameter not exceeding 900 mm. The coiled wire shall not have stuck turns or bends smaller than 100. Wire waviness caused by annealin
17、g the coils shall not be a reason for rejection. 1.3.6. The wire coil mass shall not exceed 50 kg. Should the coil consist of several wire segments, the segment length shall not be less than 10 m. 1.3.7. The mechanical properties of the wire shall meet the requirements specified in table 5. Table 5
18、Alloy gradeWire diameter, mmUltimate resistance u, MPa (kgf/mm2) Minimum elongation % BT100from 1.0 to 7.0 incl.295 to 470 (30 to 48)30.0 2from 1.6 to 7.0 incl.460 to 655 (47 to 67)13.0 1.216.02 from 1.4 to 7.0 incl. 490 to 635 (50 to 65) 20.0 1.216.07 from 1.4 to 7.0 incl. 440 to 635 (45 to 65) 20.
19、0 from 1.0 to 1.4 incl.7.0 4over 1.4 to 3.0 incl.590 to 835 (60 to 85)9.0 over 3.0 to 7.0 incl.10.5 from 1.0 to 1.4 incl.7.5 41over 1.4 to 3.0 incl.540 to 785 (55 to 80)9.0 over 3.0 to 7.0 incl.12.0 2from1.6 to 7.0 incl.645 to 845 (66 to 86)13.0 6from 1.6 to 7.0 incl.665 to 865 (68 to 88)12.0 201fro
20、m 2.0 to 7.0 incl.590 to 785 (60 to 80)12.0 202from 2.0 to 7.0 incl.635 to 835 (65 to 85)10.0 1.4. Marking 1.4.1. Each coil shall have an attached tag containing the following: trademark or trademark and manufacturers name; p. 6 GOST 27265-87 wire designation; batch and heat number; technical inspec
21、tion stamp; date of issue; number of this Standard. 1.5. Packing 1.5.1. Each wire coil shall be tightly tied with soft titanium wire in at least three places. The coil shall be packed in clean paper and then wrapped with burlap. It is allowed to wrap the coil in canvas or synthetic-fiber canvas or p
22、olyethylene film with a thickness from 100 to 200 m in accordance with GOST 10354-82, without pre-packing in paper. The packed coils shall be tied by a twine of natural and synthetic fibers in accordance with specifications and technical documentation. 1.5.2 Wire coils forwarded to one customer shal
23、l be placed together in transport packages in accordance with GOST 21929-76 with a mass no more than 600 kg. The packages shall be tied in three to five places by wire or tape in accordance with GOST 3282-74 or GOST 3560-73, respectively. The overall dimensions of the package shall not exceed 800 12
24、00 1350 mm, with fixing on wooden bars with dimensions of 0.05 0.05 1.0 m. 1.5.3. The transport markings of the wire coils shall be in accordance with GOST 14192-77. 1.5.4. Should the wire be transported to the Far North and remote regions, the packing shall meet the requirements of GOST 15846-79. 1
25、.5.5. The packing of wire intended for export shall meet the requirements of GOST 24634-81. 2. ACCEPTANCE 2.1. The wire shall be accepted in batches. A batch shall consist of wire of one titanium or titanium-alloy grade, one heat, and one diameter, and shall be certified by one quality certificate c
26、ontaining the following: trademark or name and trademark of the manufacturer; customer name; titanium or titanium-alloy grade; wire diameter; batch and heat number; test results; degassing date; -,-,- GOST 27265-87 p. 7 net weight of the batch; shipment date; number of this Standard. It is allowed t
27、o make a batch from wires of several heats, and each batch shall be checked for meeting the requirements of this Standard. 2.2. Each coil shall be checked for surface condition and wire dimensions. 2.3. Each coil shall be checked for mechanical tension. Should coiled wire be broken or cut into sever
28、al lengths of no less than 10 m each during the coiling process, any length may be tested. 2.4. To determine the chemical composition, i.e., the basic components and regulated impurities, two coils from a batch shall be sampled. The manufacturer shall determine the chemical composition of the basic
29、components and regulated impurities (except for hydrogen and oxygen) for each heat. The fraction of total mass of elements in the column “total other impurities” (see table 3) shall not be checked. The manufacturer is allowed to set the chemical composition of components and regulated impurities acc
30、ording to the quality certificate of the manufacturer of ingots. 2.4.1. The fraction of total mass of hydrogen shall be checked for two coils from the heat, and the fraction of total mass of oxygen shall be checked for two coils from the batch. 2.4.2. Should the test results be unsatisfactory for hy
31、drogen and oxygen, the coils which failed to pass the test shall be rejected, and the batch shall be subject to complete inspection against these indicators. 2.5 Should the test results be unsatisfactory against even one of the indicators, a re-test shall be carried out on twice the number of sample
32、s taken from the same coil length. 3. TEST METHODS 3.1. The samples for determination of the chemical composition of the welding wire shall be taken and prepared in accordance with GOST 24231-80. The chemical composition of titanium and titanium alloys shall be determined using chemical methods in a
33、ccordance with GOST 25086-81 and GOST 19863.1-80 to 19863.13- 80, or the spectral method in accordance with GOST 23902-79. Should disputes arise, the chemical composition shall be determined in accordance with GOST 19863.1-80 to 19863.13-80. p. 8 GOST 27265-87 3.1.1. The fraction of total mass of hy
34、drogen shall be determined using the vacuum heating method in accordance with GOST 24956-81. The examination shall be performed on two samples cut from the top and bottom coils of each heat. 3.1.2. The fraction of total mass of oxygen shall be determined in accordance with specifications and technic
35、al documentation. The examination shall be performed on two samples cut from the coils being inspected. 3.2. The wire diameter shall be measured by a micrometer in accordance with GOST 6507-78, or another measuring tools ensuring the required measurement accuracy. 3.3. Magnifying devices shall not b
36、e used during visual inspection of the wire surface for the absence of temper colors. The degassing quality shall be checked by sampling to determine the hydrogen and oxygen content. 3.3.1. The wire shall be scraped in a longitudinal direction with a scraper or sandpaper in accordance with GOST 5009
37、-82, or sandpaper in accordance with GOST 6456-82 with a grain size no larger than 6. Table 6 Alloy gradeWire diameter, mmNumber of samples from the coil From 2.5 to 4.01BT100 From 5.0 to7.02 (one from each length) From 1.4 to 2.0128 7 From 2.5 to7.02 (one from each end) 41, 4From 1.4 to 3.51 2, 6,
38、2From 1.6 to 3.51 21, 202From 2.0 to 3.51 41, 4, 2, 6. 2,From 4.0 to 7.02 (one from each end) 201, 202 3.4. The depth of surface defects shall be measured metallographically on macrosections in accordance with specifications and technical documentation. The wire of titanium alloys of grades 2B and -
39、7 with diameters from 1.4 to 2.0 mm inclusive shall be checked in microsections. -,-,- GOST 27265-87 p. 9 The surface defects depth of titanium wire of grade 100 with a diameter up to 2.0 mm inclusive, and titanium-alloy wire up to 1.2 mm in diameter inclusive shall not be checked, and shall be guar
40、anteed by the manufacturer. The number of samples taken from the coils to produce metallographic specimens shall meet the requirements specified in table 6. 3.5. Tensile tests shall be conducted in accordance with GOST 10446-80. One sample shall be taken from each coil for tensile tests. The design
41、length of the sample in millimeters shall be found using the formula 00 5 dl =, but it shall not be less than 10 mm. For OT4- and 4-1 grade alloys, the design length of the sample shall be 100 mm. The speed of clamp travel during tensioning of the samples (at test-machine idle run) shall be from 10
42、to 15 mm/min. For 1-00 titanium and titanium alloys of grades -7 and 2B, the velocity of clamps (at test-machine idle run) shall be from 10 to 20 mm/min. 4. TRANSPORTATION 4.1. The wire may be transported by all transportation means in covered carriers according to the rules of cargo transportation
43、effective for transport of the given type. 4.2. Cargo in railway vehicles shall be located and fastened in accordance with the technical regulations for loading and fastening cargoes approved by the USSR Ministry of Railway Transport. 5. STORAGE 5.1. The wire coils shall be stored in covered warehou
44、ses protected from mechanical damage and active chemical agents. _ -,-,- p. 10 GOST 27265-87 DETAILS 1. APPROVED AND INTRODUCED by Decree No. 1114 of the USSR State Committee for Standards, dated 31.03.87 1. INTRODUCED FOR THE FIRST TIME 3. First review period: 1992. 4. REFERENCE DOCUMENTATION Numbe
45、r of reference document referred toNumber of clause GOST 3282-741.5.2 GOST 3560-731.52 GOST 5009-823.3.1 GOST 6456-823.3.1 GOST 6507-783.2 GOST 10354-821.5.1 GOST 10446-803.5 GOST 14192-771.5.3 GOST 15846-791.5.4 GOST 19863.1-80 GOST 19863.13-803.1 GOST 21929-761.5.2 GOST 23902-793.1 GOST 24231-803.
46、1 GOST 24634-811.55 GOST 24956-813.1:1 GOST 25086-813.1 Editor Ya. V. Vinogradskaya Technical Editor M. I. Maksimova Proof-reader R. Ya. Korchagina -,-,- Group B74 Amendment No. 1 to GOST 27265-87 Titanium and Titanium-Alloy Welding Wire. Specifications Approved and introduced by Decree No. 629 of t
47、he USSR State Committee for Product Quality Management and Standards, dated 05.05.91 Date of Introduction 01.11.91 The following paragraph shall be inserted into the Introduction: “The requirements in clauses 1.3.5 and 1.3.6 shall be advisory, while the other requirements shall be obligatory.” Clause 1.2.1. The following line shall be inserted into table 1: Stipulated diameter, Maximum wire diameter deviations, mm Cross section area, mm2 4.50.1615.90 Designation 15 shall be inserted into the note after the designation 20-2. Clause 1.2
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