Св-08Х20Н9Г7Т - 1.4370 tube, wire, circle
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 12X17G9AN4 | EI878 | 1.4373 | 202 | X12CrMnNiN18-9-5 | Delivery from the stock, in stock |
Welding wire Св-08Х20Н9Г7Т.
The given wire is manufactured in accordance with GOST 2246−70, RD 03−613−03 and technical conditions 1220−005−84 823 540−2010. The wire is used for manual arc welding of critical components of austenitic steel grades: 12X18H9T, 08X18H10T, 08X18H12B and the like.
It is also used for welding of internal parts which are operated under high pressure and temperature of 570−650 °, as well as for welding steels of the same grades, if the weld does not have strict requirements for resistance to intergranular corrosion.
Percentage composition
| Cu | P | S | V | N | Al | W |
|---|---|---|---|---|---|---|
| Not more than 0.25 | Not more than 0.035 | Not more than 0,018 | By fact | ex post facto | By fact | By fact |
| Mn | Si | С | Cr | Ti | Mo | Ni |
|---|---|---|---|---|---|---|
| 5,00−8,00 | 0,50−1,00 | Not more than 0.10 | 18,50−22,00 | 0,60−0,90 | Not more than 0.25 | 8,00−10,00 |
Mechanical characteristics of Sv-08Х20Н9Г7Т wire:
Temporary tensile strength of high-alloyed and alloyed wire in accordance with the standards.
| Wire diameter, c mm | for the production of electrodes | for cladding (welding) |
|---|---|---|
| 1,6 | 686−980 (70−100) | 882−1274 (90−130) |
| 0,8−1,5 | - | 882−1323 (90−135) |
| St. 2.0 | 637−931 (65−95) | 686−1029 (70−105) |
| 2,0 | 686−980 (70−100) | 784−1176 (80−120) |
Limit deviations and wire diameters as specified:
| Nominal diameter | In the manufacture of electrodes | for cladding (welding) |
|---|---|---|
| 1,6; 2,0 | - | -0,12 |
| 0,8 | -0,06 | -0,07 |
| 2,5; 3,0 | -0,09 | -0,12 |
| 1,2 | - | -0,09 |
| 1 | - | |
| 1,5 | -0,09 | |
| 1,4 | ||
| 4,0; 5,0; 6,0 | -0,12 | -0,16 |
Ferritic phase:
The composition in the wire of the ferritic phase is regulated solely by agreement of the parties.
The chemical properties of the weld metal:
| Cu | P | S | V | N | Al | W |
|---|---|---|---|---|---|---|
| 0,12 | 0,018 | 0,004 | 0,05 | 0,02 | 0,05 | 0,001 |
| Mn | Si | С | Cr | Ti | Mo | Ni |
|---|---|---|---|---|---|---|
| 7,24 | 0,68 | 0,07 | 20,75 | 0,71 | 0,05 | 8,65 |
Welding position:
N1, 2, N1, 2, N45, C1, D
Welding characteristics:
Good quality formation of filling, facing and root layers of the weld, stable arc burning. Welding wire clad metal is used, as well as in argon (inert gas).
The mechanical characteristics of the weld metal (the test in the process of submerged-arc welding):
| Welding wire grade | Elongation, % Relative elongation, in % | Yield strength, in σ T, MPa | Tensile strength σ B, in MPa | Tensile strength, in KCU J/cm2 |
|---|---|---|---|---|
| Св-08Х20Н9Г7Т | 33 | 320,1 | 598,3 | 119,7 — 120,2 |
The weld metal is not prone to intergranular corrosion.
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Evek GmbH stocks a wide range of welding wires. Our locations are. You can make a purchase without leaving the office, through the Company’s website. All products are of the highest quality. The technological configuration of each production stage gives us the possibility to fulfill individual orders in the case when you are not satisfied with the basic execution of the product. We carry out high quality individual orders of non-standard parameters, the timing of their implementation is minimal. In case of bulk purchases we provide discounts.