| grade |
National standard model |
American standard model |
Type of medicinal skin |
welding current |
main purpose |
| R102 |
E5003-A1 |
1 |
Titanium calcium type |
AC |
Used for welding boiler pipelines with working temperatures below 510 degrees Celsius, such as the cover welding after argon arc welding of 15Mo and other base welding |
| R106Fe |
E5018-A1 |
E7018-A1 |
Iron powder low hydrogen type |
AC |
Used for welding boiler pipes with working temperatures below 510 degrees Celsius (such as 15Mo), and can also be used for welding general low-alloy steels |
| R107 |
E5015-A1 |
E7015-A1 |
Low hydrogen type |
direct current |
Used for welding boiler pipes with working temperatures below 510 degrees Celsius (such as 15Mo), and can also be used for welding general low-alloy steels |
| R202 |
E5503-B1 |
1 |
Titanium calcium type |
AC |
Welding of 12CrMo and other pearlite heat-resistant steels with working temperatures below 510 degrees Celsius |
| R207 |
E5515-B1 |
E8015-B1 |
Low hydrogen type |
direct current |
Welding of 12CrMo and other pearlite heat-resistant steels with working temperatures below 510 degrees Celsius |
| R302 |
E5503-B2 |
1 |
Titanium calcium type |
AC |
Used for welding boiler pipelines with working temperatures below 520 degrees Celsius, such as argon arc welding of 15CrMo and cover welding after bottom welding |
| R307 |
E5515-B2 |
E8015-B2 |
Low hydrogen type |
direct current |
Welding of pearlite heat-resistant steels such as 15CrMo with working temperature below 520 degrees Celsius |
| R307B |
E5515-B2 |
E8015-B2 |
Ultra low hydrogen type |
direct current |
Used for welding Cr Mo heat-resistant steel, such as 15CrMo, 13CrMo and other steel reactors, heat exchangers, high-pressure vessels and other structures with complex stress and large constraints |
| R310 |
E5500-B2-V |
1 |
Special type |
AC |
Used for structural welding of pearlite heat-resistant steel (such as 12CrMoV) with working temperature below 540 degrees Celsius |
| R312 |
E5503-B2-V |
1 |
Titanium calcium type |
AC |
Cover welding after argon arc welding for boiler pipes made of pearlite heat-resistant steel (such as 12CrMoV) with working temperature below 540 degrees Celsius |
| R317 |
E5515-B2-V |
1 |
Low hydrogen type |
direct current |
Used for structural welding of pearlite heat-resistant steel (such as 12CrMoV) with working temperature below 540 degrees Celsius |
| R327 |
E5515-B2-VW |
1 |
Low hydrogen type |
direct current |
Welding of 15CrMoV and other pearlite heat-resistant steels with working temperatures below 570 degrees Celsius |
| R337 |
E5515-B2-VNb |
1 |
Low hydrogen type |
direct current |
Welding of 15CrMoV and other pearlite heat-resistant steels with working temperatures below 570 degrees Celsius |
| R340 |
E5500-B2-VWB |
1 |
Special type |
direct current |
Used for welding pearlite heat-resistant steel structures with working temperatures below 620 degrees Celsius |
| R347 |
E5515-B2-VWB |
1 |
Low hydrogen type |
direct current |
Used for welding pearlite heat-resistant steel structures with working temperatures below 620 degrees Celsius |
| R402 |
E6003- B3 |
1 |
Titanium calcium type |
AC |
Used for the cover welding of high-temperature and high-pressure pipelines with working temperature below 550 degrees Celsius after argon arc welding as the base welding |
| R406Fe |
E6018-B3 |
E9018-B3 |
Iron powder low hydrogen type |
AC |
Welding Cr2.5Mo type pearlite heat-resistant steel structure |
| R407 |
E6015-B3 |
E9015-B3 |
Low hydrogen type |
direct current |
Welding Cr2.5Mo type pearlite heat-resistant steel structure |
| R427 |
E5515-B3-VNb |
1 |
Low hydrogen type |
direct current |
12Cr2MoWVB and other heat-resistant steel structures used for welding working temperatures below 620 degrees Celsius |
| R507 |
E5MoV-15 |
1 |
Low hydrogen type |
direct current |
Welding Cr5Mo type pearlite heat-resistant steel, such as high-temperature hydrogen corrosion resistant pipelines at 400 degrees Celsius |
| R507B |
E5MoV-15 |
1 |
Ultra low hydrogen type |
direct current |
Welding Cr5Mo type pearlite heat-resistant steel, such as high-temperature hydrogen corrosion resistant pipelines at 400 degrees Celsius |
| R 517A |
A |
1 |
Low hydrogen type |
direct current |
10Cr5MoWVTiB and other pearlite heat-resistant steels used for welding work temperatures below 650 degrees Celsius, such as high-temperature and high-pressure boiler reheaters |
| R707 |
E9Mo-15 |
1 |
Low hydrogen type |
direct current |
Welding Cr9Mo heat-resistant steel structure and superheater pipes, etc |
| R717 |
A |
1 |
Low hydrogen type |
direct current |
Used for welding Cr9Mo heat-resistant steel structures and superheater pipelines, etc |
| R 717A |
A |
E505-15 |
Low hydrogen type |
direct current |
Used for welding Cr9Mo1 heat-resistant steel structures, high-temperature and high-pressure boiler superheater tubes, and heater tubes for petroleum refining equipment |
| R802 |
E11MoVNi-16 |
1 |
Titanium calcium type |
AC |
Cr11MoV heat-resistant steel structure with welding working temperature below 565 degrees Celsius |
| R807 |
E11MoVNi-15 |
1 |
Low hydrogen type |
direct current |
Cr11MoV heat-resistant steel structures with welding working temperatures below 565 degrees Celsius, such as variable speed blades for high-pressure gas turbines |
| R817 |
E11MoVNiW-15 |
1 |
Low hydrogen type |
direct current |
Cr11Mo with welding working temperature below 580 degrees CelsiusNiVW type heat-resistant steel structures, such as superheaters and steam pipelines |
| R827 |
A |
1 |
Low hydrogen type |
direct current |
Cr11MoV and Cr11Mo with welding working temperature below 565 degrees CelsiusNiV type heat-resistant steel structures, such as superheaters and steam pipelines, variable speed blades for high-pressure gas turbines, etc |
