GOST 27265-87. Welding wire of titanium and titanium alloys. Technical conditions.
Are you interested in welding wire made of titanium and titanium alloys, which is produced in accordance with GOST 27265−87 from the supplier company AvecGlob? Here you will find interesting information on this topic /
Application area
Titanium welding wire is usually used as an expendable material for the production of electric arc welding using MIG and TIG technologies. GOST 27265−87 «Welding wire of titanium and titanium alloys» applies to welding processes of general use, listed above.
The wire is manufactured in accordance with the requirements of this standard for technological documentation approved in accordance with the established procedure.
Technical requirements
The main parameters and dimensions of the welding wire are shown in the table:
| Nominal diameter, mm | Limit Deviations by diameter of the wire, mm |
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 | |
| 2.0 | 3.14 | |
| 2.5 | 4.90 | |
| 3.0 | 7.07 | |
| 3.5 | -0.16 | 9.62 |
| 4.0 | 12.57 | |
| 4,5 | 15.90 | |
| 5.0 | 19.63 | |
| 6.0 | 28.27 | |
| 7.0 | -0.20 | 38.48 |
Supplier — AvekGlob company — offers at an affordable price from the manufacturer a welding wire, which is made of titanium or its alloys, and meets the technical requirements of GOST 27265−87. The supplier guarantees the timely delivery of products to any address specified by the consumer.
Brands of titanium alloys used for the production of welding wires in accordance with GOST 27265−87
Chemical composition and nomenclature of alloys are presented in the tables:
| Brand alloy | Chemical composition, % | The sum of other impurities | |||||||||||
| Main Components | Impurities,%, not more than | ||||||||||||
| Titanium | Aluminum | Marganets | Molybdenum | Vanadium | Zirconium | Silica | Iron | Carbon | Oxygen | Nitrogen | Hydrogen | ||
| BT1−00c | The basis | Not more than 0.20 | - | - | - | - | 0.08 | 0,15 | 0.05 | 0.12 | 0.03 | 0.003 | 0.10 |
| BT2cv | Also | 2.0−3.0 | - | - | - | - | 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 | - | - | - | 2.0−3.0 | 0.10 | 0,15 | 0.05 | 0.12 | 0.03 | 0.002 | 0.30 |
| OT4cv | « | 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 |
| ВТ6св | « | 3.5−4.5 | - | - | 2.5−3.5 | - | 0.10 | 0,15 | 0.05 | 0.12 | 0.04 | 0.003 | 0.30 |
| VT20−1sv | « | 2.0−3.0 | - | 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 |
| SP15 | « | 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 consumer’s request, in a titanium wire of grade ВТ1−00св, the mass fraction of hydrogen should not exceed 0.002%, in this case the wire is marked with the mark ВТ1−00свС. The magnitude of the permissible deviation of the mass fraction of hydrogen from the value of 0.002% for grades BT1−00sVS, 2V, PT-7Msv should not exceed + 0.0004%.
2. Mass fraction of niobium in the alloy grade SP15 — 2,5−4,5%, rhenium — 0,05−0,10%.
The introduction of rhenium in the burden of alloy grade SP15 is carried out at the request of the consumer. The mass fraction of rhenium is not controlled.
The wire is manufactured in an etched and degassed state.
| Brand alloy | Diameter of wire, mm |
| BT1−00c | From 1.0 to 7.0 inclusive. |
| OT4−1sv | |
| OT4cv | |
| 2B | From 1,2 to 7,0 inclusive. |
| PT-7Msv | |
| BT2cv | From 1,6 to 7,0 inclusive. |
| ВТ6св | |
| SPT-2 | |
| VT20−1sv | From 0,8 to 7,0 inclusive. |
| VT20−2sv | |
| SP15 | From 2,5 to 5,0 inclusive. |
External signs of determining the quality of titanium welding wire
On the surface of the welding wire are allowed separate non-etched zones and areas of a dark surface with traces of protective grease, as well as the color of tarnishing. Welding wire can also contain surface cracks and scratches. In the cassette with the wire there should not be stuck and twisted turns.
Supplier — AvekGlob Company — offers to purchase a welding wire made of various titanium alloys that meets the technical requirements of GOST 27265−87. Products can be bought at a price formed on the basis of European and world standards of production. Implementation is possible in bulk and retail, for regular customers, a flexible system of discounts operates.