| grade |
National standard model |
Type of medicinal skin |
welding current |
main purpose |
| D102 |
EDPMn2-03 |
Titanium calcium type |
AC、DC |
Used for surfacing or repairing worn parts of low carbon steel, medium carbon steel, and low-alloy steel, such as axles, gears, and mixer blades. |
| D106 |
EDPMn2-16 |
Low hydrogen type |
AC、DC+ |
Used for surfacing or repairing worn parts of low carbon steel, medium carbon steel, and low-alloy steel, such as axles, gears, and mixer blades. |
| D107 |
EDPMn2-15 |
Low hydrogen type |
DC+ |
Used for surfacing or repairing worn parts of low carbon steel, medium carbon steel, and low-alloy steel, such as axles, gears, and mixer blades. |
| D112 |
EDPCrMo-A1-03 |
Titanium calcium type |
AC、DC |
Used for the surface of low carbon steel, medium carbon steel, and low alloy steel parts that are subject to wear and tear, especially suitable for welding and repair of mining and agricultural machinery. |
| D126 |
—— |
Low hydrogen type |
AC、DC+ |
Used for surfacing worn surfaces of low carbon steel, medium carbon steel, and low-alloy steel, such as axles, gears, walking drive wheels, mixer blades, etc. |
| D127 |
—— |
Low hydrogen type |
DC+ |
Used for surfacing worn surfaces of low carbon steel, medium carbon steel, and low-alloy steel, such as axles, gears, walking drive wheels, mixer blades, etc. |
| D132 |
EDPCrMo-A2-03 |
Titanium calcium type |
AC、DC |
Used for the surface of worn low carbon steel, medium carbon steel, and low-alloy steel parts, especially suitable for welding and repairing worn parts of mining and agricultural machinery. |
| D146 |
EDPMn4-16 |
Low hydrogen type |
AC、DC+ |
Used for surfacing various worn carbon steel parts and carbon steel turnouts. |
| D156 |
—— |
Low hydrogen type |
AC、DC+ |
Suitable for welding of steel rolling mill parts, such as groove rolling mills, cast steel large gears, tractor drive wheels, support wheels, and chain rail joints. |
| D167 |
EDPMn6-15 |
Low hydrogen type |
DC+ |
Used for welding on worn parts of agricultural and construction machinery, such as rollers of large bulldozers, power shovels, automotive chains, etc. |
| D172 |
EDPCrMo-A3-03 |
Titanium calcium type |
AC、DC |
Used for welding worn parts such as gears, dredgers, tractor scrapers, plows, mining machinery, etc. |
| D207 |
EDPCrMnSi-A1-15 |
Low hydrogen type |
DC+ |
Used for welding worn parts such as bulldozer blades and propellers. |
| D212 |
EDPCrMo-A4-03 |
Titanium calcium type |
AC、DC |
Used for single-layer or multi-layer welding of various worn parts surfaces, such as gears, excavators, mining machinery, etc. |
| D217A |
EDPCrMo-A3-15 |
Low hydrogen type |
DC+ |
Mainly used for welding high-strength wear-resistant parts. Such as welding and repair of 30CrMnSi and 35CrMnSi metallurgical rolling rolls, welding and repair of ore crusher components, mining 4M3 electric shovel bucket teeth, and other excavator bucket teeth. |
| D256 |
EDMn-A-16 |
Low hydrogen type |
AC、DC+ |
Suitable for welding on various crushers, high manganese steel rails, buckets, bulldozers, and other parts that are prone to wear due to impact. |
| D266 |
EDMn-B-16 |
Low hydrogen type |
AC、DC+ |
Suitable for welding on various crushers, high manganese steel rails, buckets, bulldozers, and other parts that are prone to wear due to impact. |
| D276 |
EDCrMn-B-16 |
Low hydrogen type |
AC、DC+ |
Suitable for welding parts of water turbines that are damaged by gas corrosion, such as turbine blades, guide vanes, etc. It is also suitable for welding high manganese steel parts that require high wear resistance and toughness, such as railway turnouts, screw conveyors, bulldozer blades, grab buckets, crushing blades, etc. |
| D277 |
EDCrMn-B-15 |
Low hydrogen type |
DC+ |
Suitable for welding parts of water turbines that are damaged by gas corrosion, such as turbine blades, guide vanes, etc. It is also suitable for welding high manganese steel parts that require high wear resistance and toughness, such as railway turnouts, screw conveyors, bulldozer blades, grab buckets, crushing blades, etc. |
| D286A |
EDMn-B-16 |
Low hydrogen type |
AC、DC+ |
Suitable for high manganese steel surfacing, it is a welding rod for repairing railway high manganese steel rails and turnouts. It can also be used for surfacing of various crushers, bulldozers and other impact surfaces - worn parts. |
| D286B |
EDMn-B-16 |
Low hydrogen type |
AC、DC+ |
Suitable for high manganese steel surfacing, it is a welding rod for repairing railway high manganese steel rails and turnouts. It can also be used for surfacing of various crushers, bulldozers and other impact surfaces - worn parts. |
| D307 |
EDD-D-15 |
Low hydrogen type |
DC+ |
It is possible to weld the cutting edge on tool blanks made of medium carbon steel (such as 45, 45Mn steel) to achieve the purpose of replacing integral high-speed steel, and it is also possible to weld repair worn cutting tools and other tools. |
| D317 |
EDRCrMoWV-A3-15 |
Low hydrogen type |
DC+ |
Suitable for cold stamping die welding, and can also be used for welding general cutting tools. |
| D322 |
EDRCrMoWV-A1-03 |
Titanium calcium type |
AC、DC |
Used for welding various cold stamping dies and cutting tools, and can also be used to repair mechanical parts that require high wear resistance. |
| D327 |
EDRCrMoWV-A1-15 |
Low hydrogen type |
DC+ |
Used for welding various cold stamping dies and cutting tools, and can also be used to repair mechanical parts that require high wear resistance. |
| D337 |
EDRCrW-15 |
Low hydrogen type |
DC+ |
Used for welding forging dies on cast or forged steel, and can also be used for repairing forging dies. |
| D397 |
EDRCrMnMo-15 |
Low hydrogen type |
DC+ |
Hot forging dies used for welding cast or forged steel bodies, as well as for repairing old forging dies made of 5CrMnMo, 5CrNiMo, 5CrNiSiW steel, or welding high-strength wear-resistant parts. |
| D502 |
EDCr-A1-03 |
Titanium calcium type |
AC、DC |
This is a universal surface welding rod used for welding shafts and valves made of carbon steel or alloy steel with a working temperature below 450 ℃. |
| D507 |
EDCr-A1-15 |
Low hydrogen type |
DC+ |
This is a universal surface welding rod used for welding shafts and valves made of carbon steel or alloy steel with a working temperature below 450 ℃. |
| D507Mo |
EDCr-A2-15 |
Low hydrogen type |
DC+ |
Used to weld the sealing surface of medium temperature and high pressure globe valves with a working temperature below 510 ℃. The sealing surface of the gate valve should use this welding rod in conjunction with D577 welding rod (the valve seat and valve disc should use the above two types of welding rods respectively). |
| D507MoNb |
EDCr-A1-15 |
Low hydrogen type |
DC+ |
Used for welding the sealing surface of medium and low pressure valves with a working temperature below 450 ℃. |
| D512 |
EDCr-B-03 |
Titanium calcium type |
AC、DC |
D512 is a universal surface welding rod used for welding. The welding layer is harder, more wear-resistant, and more difficult to process than D502. It is used for welding carbon steel or low-alloy steel shafts, valves for superheated steam, agitator blades, screw conveyor blades, etc. |
| D516MA |
EDCrMn-A-16 |
Low hydrogen type |
AC、DC+ |
Used for components subjected to water, steam, and petroleum media with welding working temperatures below 450 ℃, such as 25 # cast steel and high and medium pressure valve sealing surfaces. |
| D517 |
EDCr-B-15 |
Low hydrogen type |
DC+ |
D517 is a universal surface welding rod used for welding. The welding layer is harder, more wear-resistant, and more difficult to process than D502. It is used for welding carbon steel or low-alloy steel shafts, valves for superheated steam, agitator blades, screw conveyor blades, etc. |
| D547 |
EDCrNi-A-15 |
Low hydrogen type |
DC+ |
Valve sealing surfaces and other sealing components used for welding high-pressure boiler equipment in power plants operating below 570 ℃. |
| D547Mo |
EDCrNi-B-15 |
Low hydrogen type |
DC+ |
Used for welding the sealing surface of high-pressure valves with working temperatures below 600 ℃. |
| D557 |
EDCrNi-C-15 |
Low hydrogen type |
DC+ |
Used for welding the sealing surface of high-pressure valves with working temperatures below 600 ℃. |
| D577 |
EDCrMn-C-15 |
Low hydrogen type |
DC+ |
Used for sealing surfaces of medium temperature and high-pressure valves with welding working temperatures below 510 ℃. When used in conjunction with D507Mo in gate valves, the service life is longer. |
| D608 |
EDZ-A1-08 |
Graphite type |
AC、DC+ |
Used for parts of agricultural machinery, mining equipment, etc. that withstand sand abrasion and slight impact. |
| D628 |
—— |
Graphite type |
AC、DC+ |
Used for welding to withstand slight impact loads, but requiring a wear-resistant surface with good abrasive wear resistance. Such as the hammer head of a hammer type coal mill, the impact plate of a fan type coal mill, etc. |
| D667 |
EDZCr-C-15 |
Low hydrogen type |
DC+ |
Used for welding applications that require strong wear resistance, corrosion resistance, and gas corrosion resistance, such as centrifugal cracking pump shaft sleeves in the petroleum industry, mining crusher components, and valve covers on diesel engines. |
| D707 |
EDW-A-15 |
Low hydrogen type |
DC+ |
Used for welding mechanical parts that are resistant to strong rock wear, such as concrete mixer blades, bulldozer and pump blades, dredger blades, high-speed sand mixing boxes, etc. |
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