GOST 27265-87
GOST 27265−87 Wire welding of titanium and titanium alloys. Technical specifications (with Amendment with Amendments No. 1, 2)
GOST 27265−87
Group В74
STATE STANDARD OF THE USSR
THE WELDING WIRE OF TITANIUM AND TITANIUM ALLOYS
Specifications
Titanium and titanium alloys filler wire. Specifications
GST 18 2531
Valid from 01.01.89
before 01.01.94*
_______________________________
* Expiration removed
by the decree of Gosstandart of the USSR
from
Note the manufacturer’s database.
INFORMATION DATA
1. APPROVED AND put INTO EFFECT by Decision of the USSR State Committee for standards from
2. INTRODUCED FOR THE FIRST TIME
3. The term of the first test 1992
4. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS
| The designation of the reference document referenced |
The number of the paragraph, subparagraph, enumeration, applications |
| GOST 3282−74 |
1.5.2 |
| GOST 3560−73 |
1.5.2 |
| GOST 5009−82 |
3.3.1 |
| GOST 6456−82 |
3.3.1 |
| GOST 6507−78 |
3.2 |
| GOST 10354−82 |
1.5.1 |
| GOST 10446−80 |
3.5 |
| GOST 14192−77 |
1.5.3 |
| GOST 15846−79 |
1.5.4 |
| GOST 19863.1−80 — GOST 19863.13−80 |
3.1 |
| GOST 21929−76 |
1.5.2 |
| GOST 23902−79 |
3.1 |
| GOST 24231−80 |
3.1 |
| GOST 24634−81 |
1.5.5 |
| GOST 24956−81 |
3.1.1 |
| GOST 25086−81 |
3.1 |
AMENDED, published in IMS No. 4, 1989
An amendment made by the manufacturer of the database
MADE: the Change in N 1, approved and put into effect by the Decree of the USSR State Committee on management of quality and standards from
Change N 1, 2 made by the manufacturer of the database in the text IUS N 8 1991, IUS N 2 2006
This standard applies to welded wire from titanium and titanium alloys General purpose.
(Changed edition, Rev. N 1, 2).
1. TECHNICAL REQUIREMENTS
1.1. Wire produced in accordance with the requirements of this standard in accordance with technical documentation approved in the established order.
1.2. Basic parameters and dimensions
1.2.1. The diameter of the wire and limit deviation shall meet the requirements of table.1.
Table 1
| Nominal diameter, mm |
Limit deviations the diameter of wire, mm |
The cross-sectional area, mm |
| 0,8 | -0,10 | 0,50 |
| 1,0 |
0,78 | |
| 1,2 |
-0,12 |
1,13 |
| 1,4 |
1,54 | |
| 1,6 |
2,01 | |
| 1,8 |
2.54 mm | |
| 2,0 |
3,14 | |
| 2,5 |
4,90 | |
| 3,0 |
Of 7.07 | |
| 3,5 |
-0,16 |
9,62 |
| 4,0 |
12,57 | |
| 4,5 | 15,90 | |
| 5,0 |
Of 19.63 | |
| 6,0 |
Of 28.27 | |
| 7,0 |
-0,20 |
38,48 |
Note. Tolerances for the wire diameter for alloy VT20−1sv, VT20−2sv, СП15 should be:
— 0.10 mm for diameters of 0.8−1.0 mm
— 0.12 mm — for diameters of 1.2−1.8 mm
— 0.16 mm — for diameters of 2.0−3.5 mm
— 0,20 mm — for diameters of 4.0−7.0 mm
1.2.2. Depending on the brand of alloy wire produced within the dimensions shown in table.2.
Table 2
| Grade |
Wire diameter, mm |
| BT1−00sv |
From 1.0 to 7.0 incl. |
| OT4−1sv | |
| Ot4sv | |
| 2B |
From 1.2 to 7.0 incl. |
| PT-7msv | |
| Vt2sv |
From 1.6 to 7.0 incl. |
| Vt6sv | |
| SPT-2 | |
| VT20−1sv |
From 0.8 to 7.0 incl. |
| VT20−2sv | |
| СП15 | From 2.5 to 5.0 incl. |
1.2.1,
1.2.3. Ovality of the wire should take the diameter of the wire for the limit deviation for diameter.
Example of designation wire diameter 4.0 mm titanium alloy OT4 brand-1sv
Wire OT4−1sv 4,0 GOST 27265−87
1.3. Features
1.3.1. Wire produced titanium BT1−00sv and titanium alloys Vt2sv, 2V, PT-7msv, Ot4sv, OT4−1sv, SPT-2, Vt6sv, VT20−1sv, VT20−2sv, СП15 with chemical composition in accordance with the table.3.
Table 3
| Grade | Chemical composition, % |
The amount of other appli — this | |||||||||||
| The main components |
Impurities, %, not more | ||||||||||||
| Titan |
Aluminium |
Manganese |
Molyb — den |
Van — DIY |
Cubic Zirconia |
Cream — tions |
Iron |
Carbon race |
Sweet — and- kind |
Nitrogen |
Water rod | ||
| BT1−00sv |
Basis |
0.20 |
- | - | - | - | 0,08 |
0,15 |
0,05 |
0,12 |
0,03 |
0,003 |
0,10 |
| Vt2sv |
The same |
2.0 to 3.0 |
- |
- |
- |
- |
0,10 |
0,15 |
0,05 |
0,12 |
0,04 |
0,003 |
0,30 |
| 2B |
« |
1,5−2,5 |
- |
- |
1,0−2,0 |
- |
0,10 |
0,20 |
0,07 |
0,12 |
0,04 |
0,002 |
0,30 |
| PT-7msv |
« |
1,8−2,5 |
- |
- |
- |
2.0 to 3.0 |
0,10 |
0,15 |
0,05 |
0,12 |
0,03 |
0,002 |
0,30 |
| Ot4sv |
« |
3,5−5,0 |
0,8−2,0 |
- | - | Not more than 0.30 |
0,12 |
0,30 |
0,10 |
0,15 |
0,05 |
0,006 |
0,30 |
| OT4−1sv |
« |
1,5−2,5 |
0,7−2,0 |
- |
- |
No more 0,30 |
0,12 |
0,30 |
0,10 |
0,15 |
0,05 |
0,006 |
0,30 |
| SPT-2 |
« |
3,5−4,5 |
- |
- |
2,5−3,5 |
1,0−2,0 |
0,10 |
0,15 |
0,05 |
0,12 |
0,04 |
0,003 |
0,30 |
| Vt6sv |
« |
3,5−4,5 |
- |
- |
2,5−3,5 |
- |
0,10 |
0,15 |
0,05 |
0,12 |
0,04 |
0,003 |
0,30 |
| VT20−1sv |
« |
2.0 to 3.0 |
- |
0,5−1,5 |
0,5−1,5 |
1,0−2,0 |
0,10 |
0,15 |
0,05 |
0,12 |
0,04 |
0,003 |
0,30 |
| VT20−2sv |
» | 3,5−4,5 |
- |
0,5−1,5 |
0,5−1,5 |
1,0−2,0 |
0,10 |
0,15 |
0,05 |
0,12 |
0,04 |
0,003 |
0,30 |
| СП15 | « |
3,0−5,5 |
- |
2,0−3,5 |
2,0−3,5 |
1,0−2,0 | 0,15 | 0,30 | 0,10 | 0,15 | 0,05 | 0,006 | 0,3 |
Notes:
1. At the request of the consumer in the wire of titanium grade VT1−00sv mass fraction of hydrogen should not exceed 0,002%, in this case, the wire is marked with the brand VT1−00свС.
The value of the permissible deviation of the mass fraction of hydrogen from the value of 0.002% for grades BT1−00свС, 2V, PT-7msv should not exceed +0,0004%.
2. Mass fraction of niobium in the alloy of the brand СП15 — 2,5−4,5% rhenium and 0.05 to 0.10%.
The introduction of rhenium in the mixture of alloy grade СП15 carried out at the request of the consumer. Mass fraction of rhenium not controlled.
(Changed edition, Rev. N 1).
1.3.2. Wire produced in degassed and etched condition.
1.3.3. The surface of wire should be clean and bright without tint, dark spots and reproterol. On the surface of the wire alloys VT20−1sv and VT20−2sv allowed small tears with dark nepotrivite.
On the surface of the wire allowed small tears, risks, and sunsets with a depth of not exceeding given in table.4.
Table 4
mm
| Wire diameter | The depth of the defect, the wire marks | |||||
| VT1−00sv |
2B |
PT-7msv |
Ot4sv, OT4−1sv |
Vt2sv, Vt6sv, SPT-2 |
VT20−1sv, VT20−2sv, СП15 | |
| 0,8 |
- | - | - |
- |
- |
0,20 |
| 1,0 |
0,10 |
- |
- |
0,20 |
- |
0,20 |
| 1,2 |
0,20 |
0,25 |
0,25 |
0,20 |
- |
0,30 |
| 1,4 |
0,20 |
0,25 |
0,30 |
0,30 |
- |
0,30 |
| 1,6 |
0,20 |
0,25 |
0,30 |
0,30 |
0,40 |
0,40 |
| 1,8 |
0,20 |
0,25 |
0,30 |
0,30 |
0,40 |
0,40 |
| 2,0 |
0,20 | 0,25 | 0,30 | 0,30 | 0,40 | 0,40 |
| 2,5 |
0,25 | 0,35 | 0,40 | 0,40 | 0,50 | 0,50 |
| 3,0 |
0,25 | 0,35 | 0,40 | 0,40 | 0,50 | 0,50 |
| 3,5 |
0,30 | 0,40 | 0,50 | 0,50 | 0,60 | 0,60 |
| 4,0 |
0,30 | 0,40 | 0,50 | 0,50 | 0,60 | 0,60 |
| 4,5 | 0,30 | 0,40 | 0,50 | 0,50 | 0,60 | 0,60 |
| 5,0 |
0,40 | 0,50 | 0,60 | 0,60 | 0,70 | 0,70 |
| 6,0 |
0,50 | 0,60 | 0,70 | 0,70 | 0,80 | 0,80 |
| 7,0 |
0,50 | 0,60 | 0,70 | 0,70 | 0,80 | 0,80 |
Note. Allowed on the surface of the wire in the presence of certain defects with a depth exceeding standards on 0.1 mm diameter wire up to 3.0 mm, 0.2 mm — when the wire diameter over 3.0 mm.
The number of macrosections exceeding the specified depth of the defects during metallographic control should not exceed 10% of the total number of macrosections of a controlled party.
(Changed edition, Rev. N 1, 2).
1.3.4. Corrections of surface defects and impurities by cleansing them and etching to degassing of the wire.
After degassing is allowed to sweep only a single local pollution.
Pets etching separate bays with subsequent degassing repeated.
1.3.5. Wire wound in coils with an outer diameter of not more than 900 mm.
Wire in the Bay must not have agglomerated with each other turns and twists of less than 100°.
Allowed waviness of the wire associated with the annealing of the coils.
(Changed edition, Rev. N 1).
1.3.6. Mass Bay wire should be no more than 50 kg.
If the Bay is made up of several pieces, the length of the piece should be at least 10 m.
1.3.7. Mechanical properties of the wire shall conform to the requirements given in table.5.
Table 5
| Grade |
Wire diameter, mm |
Temporary resistance |
Elongation |
| BT1−00sv |
From 1.0 to 7.0 incl. |
295−470 (30−48) |
30,0 |
| Vt2sv |
From 1.6 to 7.0 incl. |
460−655 (47−67) |
13,0 |
| 2B |
1,2 |
490−635 (50−65) |
16,0 |
| From 1.4 to 7.0 incl. |
20,0 | ||
| PT-7msv |
1,2 |
440−635 (45−65) | 16,0 |
| From 1.4 to 7.0 incl. |
20,0 | ||
| Ot4sv |
From 1.0 to 1.4 incl. |
590−835 (60−85) |
7,0 |
| SV. 1.4 to 3.0 incl. |
9,0 | ||
| SV. 3.0−7.0 incl. |
10,5 | ||
| OT4−1sv |
From 1.0 to 1.4 incl. |
540−785 (55−80) |
7,5 |
| SV. 1.4 to 3.0 incl. |
9,0 | ||
| SV. 3.0−7.0 incl. |
12,0 | ||
| SPT-2 |
From 1.6 to 7.0 incl. |
645−845 (66−86) |
13,0 |
| Vt6sv |
From 1.6 to 7.0 incl. |
665−865 (68−88) |
12,0 |
| VT20−1sv |
From 0.8 to 7.0 incl. |
590−785 (60−80) |
12,0 |
| VT20−2sv |
From 0.8 to 7.0 incl. |
635−835 (65−85) |
10,0 |
| СП15 |
From 2.5 to 5.0 incl. |
Not less than 735 (75) |
10 |
(Changed edition, Rev. N 1, 2).
1.4. Marking
1.4.1. Each Bay is mounted a label showing:
trademark or a trademark and the name of the company-manufacturer:
legend wire;
batch number and melting;
the stigma of technical control;
room Bay;
designation of this standard.
(Changed edition, Rev. N 1).
1.5. Packaging
1.5.1. Each coil of wire shall be tightly bound with soft titanium wire in at least three places.
The Bay must be Packed in clean paper and top with the wrapped non-woven material. Allowed Bay to wrap a cloth, glued from synthetic fibers, or plastic film with a thickness of 100 to 200 µm according to GOST 10354−82 without preliminary packing in a paper.
Packed Bay is tied with twine made of synthetic fibers according to normative-technical documentation.
(Changed edition, Rev. N 1).
1.5.2. Bay wire sent to one user, connect to the transport packets in accordance with the requirements of GOST 24597−81, 21650−76 GOST, GOST 9078−84, GOST 9557−87 mass not exceeding 600 kg.
The packages linked in three to five places wire according to GOST 3282−74 or tape according to GOST 3560−73.
Overall dimensions of the bag must not exceed 800х1200х1350 mm with fixing to wooden cleats 0,05х0,05х1,0 m
(Changed edition, Rev. N 1).
1.5.3. Transport marking inlets of the wire — according to GOST 14192−96 with the following additional inscriptions: the name of the semi-finished product, grade, lot number.
(Changed edition, Rev. N 1, 2).
1.5.4. When sending a wire in the far North regions and equated areas packaging must meet the requirements of GOST 15846−2002.
(Changed edition, Rev. N 2).
1.5.5. Packing of wire intended for export must comply with the requirements of GOST 24634−81.
2. ACCEPTANCE
2.1. Wire take parties. The party should consist of wire of one brand of titanium or a titanium alloy, melting one, one diameter shall be furnished in one document about quality that contains:
trademark or the name and trademark of manufacturer;
the name of the consumer;
brand of titanium or titanium alloy;
the diameter of the wire;
the batch number and the number of melt;
the results of the tests;
date of degassing;
the weight of the party;
the date of shipment;
the designation of this standard.
Allowed to make a lot of wire several heats, with each melting should be checked for compliance with the requirements of this standard.
2.2. Checking the surface quality and size of wire should be subjected to each coil.
2.3. Verification of mechanical properties in tension are subjected to each Bay.
In the event of breakage or cutting of the bays in the manufacturing process into separate ends of a length of 10 m is subjected to a test either end of the Bay.
2.4. To determine the chemical composition of the main components and impurities is regulated — select the two bays of the party.
The manufacturer determines the chemical composition of the main components and regulated impurities (except hydrogen and oxygen) for each cast.
The mass fraction of the elements included in the column «amount of impurities» (see table.3) not controlled.
Allowed the manufacturer of the chemical composition of regulated components and impurities set in accordance with the document on the quality of the manufacturer bars.
2.4.1. Control of the mass fraction of hydrogen is carried out at two bays from the batch, of oxygen in the two bays of the party.
2.4.2. If unsatisfactory test results on the hydrogen and oxygen in a Bay that does not pass the test are rejected and the party goes on total control.
2.5. If unsatisfactory test results of at least one of the indicators it is carried out re-testing at twice the sample taken from the same end of the Bay.
3. TEST METHODS
3.1. Selection and preparation of samples for determining the chemical composition of the welding wire is carried out according to GOST 24231−80.
Chemical composition of titanium and titanium alloys is determined by chemical method according to GOST 25086−87, GOST 19863.1−91, GOST 19863.13−91 or the spectral method according to GOST 23902−79.
In case of any disagreement, the chemical composition is determined by GOST 19863.1−91, GOST 19863.13−91.
(Changed edition, Rev. N 1, 2).
3.1.1. Mass fraction of hydrogen was determined by vacuum heating according to GOST 24956−81.
Monitoring is carried out on two samples cut from the upper and lower bays each loading.
3.1.2. Mass fraction of oxygen is determined according to GOST 28052−97.
Monitoring is carried out on two samples cut from the monitored bays.
(Changed edition, Rev. N 1, 2).
3.2. The measurement of the diameter of the wire is carried out with a micrometer according to GOST 6507−90 or other measuring tools that provide required accuracy of measurement.
(Changed edition, Rev. N 1).
3.3. Inspection of the wire surface in the absence of the tint should be carried out without the use of magnifying devices.
Quality control of degassing is carried out by sampling the contents of hydrogen and oxygen.
3.3.1. The sweep wire is carried out in the longitudinal direction of the scraper or sanding cloth according to GOST 5009−82 or paper according to GOST 6456−82 grain size no larger than 6.
3.4. Control the depth of surface defects is carried out by metallographic method according to normative-technical documentation on the macrosections.
Table 6
| Grade | Wire diameter, mm |
The number of samples from the Bay |
| BT1−00sv |
From 2.5 to 4.5 |
1 |
| «A 5.0» to 7.0 |
2 (one from each end) | |
| 2B, PT-7msv |
From 1.4 to 2.0 |
1 |
| Is 2.5 to 7.0 |
2 (one from each end) | |
| OT4−1sv, Ot4sv |
From 1.4 to 3.5 |
1 |
| Vt2sv, Vt6sv, SPT-2 |
From 1.6 to 3.5 |
1 |
| OT4−1sv, Ot4sv, Vt2sv, Vt6sv, SPT-2 |
From 4.0 to 7.0 |
2 (one from each end) |
| VT20−1sv, |
From 0.8 to 3.5 |
1 |
| VT20−2sv |
«A 4.0» to 7.0 |
2 (one from each end) |
| СП15 |
From 2.5 to 3.5 | 1 |
| «4,0» 5,0 |
2 (one from each end) |
The control wire with a diameter of 1.4 to 2.0 mm, inclusive of titanium alloys grades 2B and PT-7msv performed on the micro-sections.
Control the depth of surface defects in the wire diameter up to 2.0 mm inclusive titanium VT1−00sv and wire diameter to 1.2 mm inclusive of titanium alloys is not carried out and guaranteed by the manufacturer.
The number of samples taken from coils, for the manufacture of sections shall conform to the requirements of table.6.
(Changed edition, Rev. N 1, 2).
3.5. The tensile test is carried out according to GOST 10446−80.
For the tensile test from each of the Bay take one sample.
The estimated length of the sample in millimeters set by formula 
For grades Ot4sv and OT4−1sv calculated sample length of 100 mm.
The speed of movement of the grippers tensile samples (at idle) machines should be 10−15 mm/min.
For titanium VT1−00sv, titanium alloy grades PT-7msv, 2V, the speed of movement of the grippers (no-load machine) from 10 to 20 mm/min.
4. TRANSPORTATION
4.1. Transportation of the wire is carried out by all types of transport in covered vehicles in accordance with cargo carriage regulations applicable to transport of this species.
4.2. The placement and fastening of cargo in rail vehicles must be conducted in full compliance with the technical conditions of loading and fastening of cargoes.
(Changed edition, Rev. N 2).
5. STORAGE
5.1. Bay wire should be stored in covered warehouses protected from mechanical damage and action of active chemical reagents.
