Brand , National Standard , D102 EDPMn2-03 It is used for surfacing or repairing the surface of wear parts of low carbon steel, medium carbon steel and low alloy steel, such as axle, gear and mixer blade D106 EDPMn2-16 It is used for surfacing or repairing the surface of wear parts of low carbon steel, medium carbon steel and low alloy steel, such as axle, gear and mixer blade D107 EDPMn2-15 It is used for surfacing or repairing the surface of wear parts of low carbon steel, medium carbon steel and low alloy steel, such as axle, gear and mixer blade D112 EDPCrMo-A1-03 It is used for the surface of worn low carbon steel, medium carbon steel and low alloy steel parts, especially for surfacing and repair of mining machinery and agricultural machinery D126 EDPMn4-16 It is used for surfacing the worn surface of low carbon steel, medium carbon steel and low alloy steel, such as axle, gear, traveling driving wheel, mixer blade, etc D127 EDPMn4-15 It is used for surfacing the worn surface of low carbon steel, medium carbon steel and low alloy steel, such as axle, gear, traveling driving wheel, mixer blade, etc D132 EDPCrMo-A2-03 Used for the surface of worn low carbon steel, medium carbon steel and low alloy steel parts, especially suitable for surfacing and repair of worn parts of mining machinery and agricultural machinery D167 EDPMn6-15 It is used for surfacing of worn parts of agricultural and construction machinery, such as large bulldozer, roller of power shovel, automobile ring chain, etc D172 EDPCrMo-A3-03 It is used for surfacing wear parts such as gears, dredgers, tractor scrapers, deep ploughshares and ploughs, mining machinery, etc D207 EDPCrMnSi-A1-15 Used for surfacing bulldozer blade, propeller and other worn parts D212 EDPCrMo-A4-03 It is used for single-layer or multi-layer surfacing of various worn parts, such as gear, bucket, mining machinery, etc D217 AEDPCrMo-A3-15 It is mainly used for surfacing high-strength wear-resistant parts
Such as surfacing and repair of 30CrMnSi and 35CrMnSi metallurgical rolls, ore crusher parts, , Welding repair of bucket teeth of mine 4m3 electric shovel and other excavators D227 EDPCrMoV-A2-15 It can be used for surfacing the surface of wear-resistant parts bearing a certain amount of impact load, such as the worn surface of roadheader disc hob D237 EDPCrMoV-A1-15 It is used for surfacing hydraulic machinery, dredger, mining machinery parts damaged by sediment wear and cavitation D256 EDMn-A-16EFeMn-A It is suitable for various parts of bulldozer, rail crusher and other parts vulnerable to impact and wear D266 EDMn-B-16EFeMn-B It is suitable for surfacing welding of various crushers, high manganese steel rails, buckets, bulldozers and other vulnerable parts D276 EDCrMn-B-16 It is suitable for surfacing the parts of hydraulic turbine damaged by cavitation erosion, such as the blade and guide vane of hydraulic turbine, and it is also suitable for requiring wear resistance and toughness , Surfacing of high manganese steel parts, such as railway turnout, screw conveyor, bulldozer blade, grab, crushing blade, etc D277 EDCrMn-B-16 It is suitable for surfacing the parts of hydraulic turbine damaged by cavitation erosion, such as the blade and guide vane of hydraulic turbine, and it is also suitable for requiring wear resistance and toughness , Surfacing of high manganese steel parts, such as railway turnout, screw conveyor, bulldozer blade, grab, crushing blade, etc D286A It is suitable for surfacing of high manganese steel
It is a special electrode for surfacing repair of railway high manganese rail and turnout
It can also be used for all kinds of crushers, , Impact surface such as bulldozer & mdash& mdash; Surfacing of worn parts D286B It is suitable for surfacing of high manganese steel
It is a special electrode for surfacing repair of railway high manganese rail and turnout
It can also be used for all kinds of crushers, , Surfacing of worn parts of impact surface such as bulldozer D307 EDD-D-15 The tool edge can be overlaid on the tool blank made of medium carbon steel (such as 45 and 45MN steel) to replace the overall high-speed steel, , It can also repair worn tools and other tools by surfacing D317 EDRCrMoWV-A3-15 It is suitable for surfacing of cold stamping die and general cutting tools D322 EDRCrMoWV-A1-03 It is used for surfacing all kinds of cold stamping dies and cutting tools
It can also be used to repair mechanical parts requiring high wear resistance D327 EDRCrMoWV-A1-15 It is used for surfacing all kinds of cold stamping dies and cutting tools
It can also be used to repair mechanical parts requiring high wear resistance D337 EDRCrW-15 It is used for surfacing forging die on cast steel or forged steel, and can also be used for repairing forging die D397 EDRCrMnMo-15 Hot forging die for surfacing cast steel or forged steel as blank, and also for repairing 5CrMnMo, 5CrNiMo and 5crnisiw Steel , Old forging die made of, or surfacing high-strength wear-resistant parts D502 EDCr-A1-03 This is a universal electrode for surface surfacing, which is used for surfacing carbon steel or alloy steel shafts and valves with working temperature below 450 ℃ D507 EDCr-A1-15 D507 is a 1Cr13 valve surfacing electrode with low sodium hydrogen coating, which adopts DC reverse connection
The surfacing metal is 1Cr13 semi ferritic high chromium steel The surfacing layer has the characteristics of air quenching
Generally, it does not need heat treatment and has uniform hardness
It can also be annealed and softened at 750 ~ 800 ℃
When heated , After air cooling or oil quenching at 900 ~ 1000 ℃, it can be hardened again D507Mo EDCr-A2-15 It is used for surfacing the sealing surface of medium temperature and high pressure stop valve with working temperature below 510 ℃
The welding rod shall be matched with d577 welding rod on the sealing surface of gate valve , Use (the above two welding rods are used for valve seat and valve disc respectively) D507MoNb It is used for surfacing welding of sealing surfaces of medium and low pressure valves with working temperature below 450 ℃ D512 EDCr-B-03D512 It is a universal electrode for surface surfacing
The surfacing layer is harder, more wear-resistant and more difficult to process than D502
It is used for surfacing carbon steel or low alloy , Steel shaft, valve parts for superheated steam, mixer paddle, screw conveyor blade, etc D516 MAEDCrMn-A-16 It is used for surfacing parts under the action of water, steam and petroleum media with working temperature below 450 ℃, such as No
25 cast steel and sealing surface of high and medium pressure valves D517 EDCr-B-15 For surfacing carbon steel or low alloy steel shafts, valves for superheated steam, mixer paddles, , D547 EDCrNi-A-15 It is used for surfacing welding of valve sealing surface and other sealing parts of power station high-pressure boiler device working below 570 ℃ D547Mo EDCrNi-B-15 It is used for surfacing welding of sealing surface of high-pressure valve with working temperature lower than 600 ℃ D557 EDCrNi-C-15 It is used for surfacing welding of sealing surface of high-pressure valve with working temperature lower than 600 ℃ D577 EDCrMn-C-15 It is used for surfacing the sealing surface of medium temperature and high pressure valve with working temperature below 510 ℃
If it is used with d507mo in gate valve, its service life is higher D608 EDZ-A1-08 It is used for agricultural machinery, mining equipment and other parts that bear sand wear and slight impact D628 It is used for surfacing the wear-resistant surface that bears slight impact load but requires good wear resistance to abrasive wear
Such as hammer head of hammer mill, , Impact plate of fan coal mill, etc D667 EDZCr-C-15 It is used for surfacing where strong wear, corrosion and cavitation resistance are required, such as centrifugal cracking pump shaft sleeve in petroleum industry and mine crusher , Components and valve covers on diesel engines D687 EDZCr-D-15 It is used in occasions requiring strong wear resistance, such as cone bit small shaft, coal hole excavator, lifting bucket, crusher roll, pump frame barrel, mixer blade, etc D707 EDW-A-15 For surfacing mechanical parts resistant to strong rock wear, such as concrete mixer blades, bulldozer and pump blades, dredger blades, , High speed sand mixing box, etc