| Model |
Standard
|
Type of Coating |
Current |
Main Applications
|
| GB |
AWS |
| R107 |
E5015-A1 |
E7015-A1 |
Low-hydrogen Type |
AC DC+ |
Used for welding boiler pipe (such as 15Mo)at operating temperature below 510℃. It is also used for general HSLA steel (high strength low alloy steel). |
| R207 |
E5515-B1 |
E8015-B1 |
Low-hydrogenType |
DC+ |
Used for welding pearlite heat-resistant steel (Such as 12CrMo) at temperature below 510 ℃ and high temperature/high pressure pipe, chemical container. |
| R307 |
E5515-B2 |
E8015-B2 |
Low-hydrogenType |
DC+ |
Used for welding pearlite heat-resistant steel that content Cr1％-Mo0.5％(Such as 5CrMo) at temperature below 520 ℃. Such as boiler pipe, high pressure vessel, petroleum refining equipment and etc. It is also used for welding steel casting of 30CrMnSi. |
| R317 |
E5515-B2-V |
|
Low-hydrogenType |
DC+ |
Used for welding pearlite heat-resistant steel (Such as 12CrMoV) at temperature below 540℃ such as high temperature/high pressure pipe, petroleum cracking equipment, chemical machine of high–temperature synthesis and etc. |
| R327 |
E5515-B2-VW |
|
Low-hydrogen sodium Type |
DC+ |
Used for welding pearlite heat-resistant steel (Such as 15CrMoV) at temperature below 570℃. |
| R337 |
E5515-B2-VNb |
|
Low-hydrogen Type |
DC+ |
Used for welding pearlite heat-resistant steel (Such as 15CrMoV) at temperature below 570℃. |
| R407 |
E6015-B3 |
E9015-B3 |
Low-hydrogen Type |
DC+ |
Used for welding the kind of Cr2.5Mo pearlite heat-resistant steel (such as 2¼CrMo).For example high temperature/high pressure pipe, petroleum cracking equipment at operating temperature below 550℃. |
| R507 |
E5MoV-15 |
|
Low-hydrogen Type |
DC+ |
Used for welding pearlite heat-resistant steel Cr5Mo. Such as hydrogen corrosion resistant pipe at high temperature 400℃. |
| R807 |
E11MoVNi-15 |
|
Low-hydrogen Type |
DC+ |
Used for welding heat-resistant steel 1Cr11MoV at operating temperature below 565℃.Such as non-uniform rotor blade of high temperature steam turbine. |
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