Type

Model

Chemical composition

Usage

SW102

EDPMn2-03

C≤0.20
Mn≤3.50

Used for surfacing welding or repairing of the surfaces of worn-out low-carbon, medium-carbon and low-alloy steel parts, such as axles, gears, blades of mixers, etc.

SW106

EDPMn2-16

C≤0.20
Mn≤3.50

Used for surfacing welding or repairing of the surfaces of worn-out low-carbon, medium-carbon and low-alloy steel parts, such as axles, gears, blades of mixers, etc.

SW107

EDPMn2-15

C≤0.20
Mn≤3.50

Used for surfacing welding or repairing of the surfaces of worn-out low-carbon, medium-carbon and low-alloy steel parts, such as axles, gears, blades of mixers, etc.

SW112

EDPCrMo-A1-03

C≤0.25
Mo≤1.50
Cr≤2.00

Used for welding the surfaces of worn-out low-carbon, medium-carbon and low-alloy parts, especially suitable for surfacing welding and repairing of mining machinery and agricultural machinery.

SW126

C≤0.20
Mn≤4.20

Used for surfacing welding on the surfaces of worn-out low-carbon, medium-carbon and low-alloy steel, such as axles, gears, driving wheels, blades of mixers, etc.

SW127

C≤0.20
Mn≤4.20

Used for surfacing welding on the surfaces of worn-out low-carbon, medium-carbon and low-alloy steel, such as axles, gears, driving wheels, blades of mixers, etc.

SW132

EDPCrMo-A2-03

C≤0.50
Mo≤1.50
Cr≤3.00

Used for welding the surfaces of worn-out low-carbon, medium-carbon and low-alloy parts, especially suitable for surfacing welding and repairing of the surface of worn-out parts of mining machinery and agricultural machinery.

SW146

EDPMn4-16

C≤0.50
Mo≤1.50
Cr≤3.00

Used for surfacing welding on the surfaces of all kinds of worn-out carbon steel parts and carbon steel switches.

SW156

C≈0.10
Mn≈0.70
Cr≈3.20
Si≈0.50

Suitable for surfacing welding on the parts of rolling mills, such as groove rolling machines, cast steel gear wheels and driving wheels, supporting wheels and track links of tractors.

SW167

EDPMn6-15

C≤0.45
Mn≤6.50
Si≤1.00

Used for surfacing welding on worn-out parts of agricultural and construction machinery, etc., such as large type dozers, idler wheels of power shovels, endless chains of automobiles, etc

SW172

EDPCrMo-A3-03

C≤0.45
Mn≤6.50
Si≤1.00

Used for surfacing welding on worn-out parts of gears, dredge buckets, tractor blades, deep digging blade ploughs, mining machinery, etc

SW207

EDPCrMnSi-A1-15

C0.50~1.00
Mn≤2.50
Si≤1.00
P≤0.035
Cr≤3.50

Used for surfacing welding on worn-out parts of bulldozer blades, airscrews, etc.

SW212

EDPCrMo-A4-03

C0.30~0.60
Mo≤4.00
Cr≤5.00

Used for single layer or multi-layer surfacing welding on the surfaces of all kinds of worn-out parts, such as gears, buckets, mining machinery, etc.

SW217A

EDPCrMo-A3-15

C≤0.50
Mo≤2.50
Cr≤2.50

Mainly used for surfacing welding on high strength wear-resistant parts, such as surfacing welding and repairing of 30CrMnSi and 35CrMnSi metallurgical rolls, parts of ore crushers, repair welding on mining 4M3 electric bucket teeth and other excavator bucket teeth, etc

SW256

EDMn-A-16
(EFeMn-A)

C≤1.10
Mn11.0~16.0
Si≤1.30

Used for surfacing welding on parts of all kinds of crushers, high-manganese steel rails, buckets, bulldozers, etc., which may easily be worn out due to impact.

SW266

EDMn-B-16
(EFeMn-B)

C≤1.10
Mn11.0~18.0
Si0.30~1.30
Mo≤2.50

Used for surfacing welding on parts of all kinds of crushers, high-manganese steel rails, buckets, bulldozers, etc., which may easily be worn out due to impact.

SW276

EDCrMn-B-16

C≤0.80
Mn11.0~16.0
Si≤0.80
Mo≤2.00
Ni≤2.00
Cr13.0~17.0

Suitable for surfacing welding on parts of water turbines worn-outby atmospheric corrosion, such as blades and water blades of water turbines, etc. At the same time, it is also suitable for surfacing welding on high-manganese steel parts requiring high w

SW277

EDCrMn-B-15

C≤0.80
Mn11.0~16.0
Si≤0.80
Mo≤2.00
Ni≤2.00
Cr13.0~17.0

Suitable for surfacing welding on parts of water turbines worn-out by atmospheric corrosion, such as blades and water blades of water turbines, etc. At the same time, it is also suitable for surfacing welding on high-manganese steel parts requiring high w

SW286A

EDMn-B-16

C≤0.12
Mn14.0~15.0
Si≤0.40
Mo1.50~2.50

Suitable for surfacing welding on high-manganese steel. It is specially used for surfacing welding and repairing of high-manganese rails and switches, and also used for surfacing welding on impacted and worn-out parts of all kinds of crushers, bulldozers, etc.

SW286B

EDMn-B-16

C≤0.12
Mn14.0~15.0
Si≤0.40
Ni3.00~4.00

Suitable for surfacing welding on high-manganese steel. It is specially used for surfacing welding and repairing of high-manganese rails and switches, and also used for surfacing welding on impacted and worn-out parts of all kinds of crushers, bulldozers,

SW307

EDD-D-15

C0.70~1.00
Cr3.80~4.50
V1.00~1.50
W17.0~19.5

Able to be used for surfacing welding on cutter blanks made of medium-carbon steel (such as 45 and 45Mn steel) to make blades so as to be used as substitute solid high speed steel, and also used for surfacing welding and repairing of worn-out cutters and other tools

SW317

EDRCrMoWV-A3-15

C0.70~1.00
Cr3.00~4.00
V1.50~3.00
W4.50~6.00
Mo3.00~5.00

Suitable for surfacing welding on cold-punching dies, and also used for surfacing welding on general cutting tools.

SW322

EDRCrMoWV-A1-03

C≤0.50
Cr≤5.00
V≤1.00
W7.0~10.0
Mo≤2.50

Used for surfacing welding on all kinds of cold-punching dies and cutting tools, and also used for repairing machinery elements requiring higher wear-resistance.

SW327

EDRCrMoWV-A1-15

C≤0.50
Cr≤5.00
V≤1.00
W7.0~10.0
Mo≤2.50

Used for surfacing welding on all kinds of cold-punching dies and cutting tools, and also used for repairing machinery elements requiring higher wear-resistance.

SW337

EDRCrW-15

C0.25~0.55
Cr2.00~3.50
W7.0~10.0

Used for surfacing welding on cast steel or forged steel to make forging dies, and also used for repairing forging dies.

SW397

EDRCrMnMo-15

C≤0.60
Cr≤2.00
Mo≤1.00
Mn≤2.50

Used for surfacing welding on cast steel or forged steel to make hot forging dies for blanks, and also used for repairing old forging dies made of 5CrMnMo, 5CrNiMo and 5CrNiSiW or surfacing welding on high strength wear-resistant parts.

SW502

EDCr-A1-03

C≤0.15
Cr10.0~16.0

This is a kind of universal electrode used for surface overlaying, used for surfacing welding on axles, valves, et. Made of carbon steel or alloy steel below 450℃.

SW507

EDCr-A1-15

C≤0.15
Cr10.0~16.0

This is a kind of universal electrode used for surface overlaying, used for surfacing welding on axles, valves, et. Made of carbon steel or alloy steel below 450℃.

SW507Mo

EDCr-A2-15

C≤0.20
Cr10.0~16.0
Mo≤2.50
Ni≤6.00

Used for surfacing welding on sealing faces of medium temperature high pressure stop valves below 510℃. When welding sealing faces of gate valves, it should be used together with D577 (valve seats and valve discs respectively match the above two kinds of electrodes).

SW507MoNb

EDCr-A1-15

C≤0.15
Cr10.0~16.0
Mo≤2.50
Nb≤0.50

Used for surfacing welding on sealing faces of medium and low pressure valves below 450℃.

SW512

EDCr-B-03

C≤0.25
Cr10.0~16.0

D512 is a kind of universal electrode used for surface overlaying. The surfacing layer is harder, more wear-resistant and more intractable than D502. Used for surfacing carbon steel or low-alloy steel axles, valves for overheated steam, blades of mixers,blades of screw conveyers, etc.

SW516MA

EDCrMn-A-16

C≤0.25
Cr12.0~14.0
Si≤1.00
Mn6.00~8.00

Used for surfacing welding on parts working in water, steam and petroleum below 450℃, such as cast steel 25 and sealing faces of high and medium pressure valves.

SW517

EDCr-B-15

C≤0.25
Cr10.0~16.0

D517 is a kind of universal electrode used for surface overlaying. The surfacing layer is harder, more wear-resistant and more intractable than D502. Used for surfacing carbon steel or low-alloy steel axles, valves for overheated steam, blades of mixers,blades of screw conveyers, etc

SW547

EDCrNi-A-15

C≤0.18
Cr15.0~18.0
Mn0.60~2.00
Ni7.00~9.00

Used for surfacing welding on sealing faces of valves of high pressure boilers below 570℃ in power stations and other sealing parts.

SW547Mo

EDCrNi-B-15

C≤0.18
Cr14.0~21.0
Mo3.5~7.0
Mn0.60~5.00
Ni6.5~12.0

Used for surfacing welding on sealing faces of high pressure valves below 600℃

SW557

EDCrNi-C-15

C≤0.20
Cr18.0~20.0
Mn2.00~3.00
Ni7.0~10.0

Used for surfacing welding on sealing faces of high pressure valves below 600℃.

SW577

EDCrMn-C-15

C≤1.10
Cr12.0~18.0
Mn12.0~18.0
Ni≤6.00

Used for surfacing welding on sealing faces of medium temperature high pressure valves below 510℃. When welding gate valves, its service life will be longer if used together with D507Mo.

SW608

EDZ-A1-08

C2.50~4.50
Cr20.0~35.0
Mo4.0~6.0

Used for welding parts of agricultural machinery, mining equipment, etc. which receive grit wear and slight impact.

SW628

C3.00~5.00
Cr3.00~5.00
Mo3.00~5.00

Used for surfacing welding on wear-resistant surfaces, which receive slight impact loads but have excellent abrasive wear-resistance, such as hammerheads of impact coal mills, strike plates of fan coal mills, etc.

SW667

EDZCr-C-15
(EFeCr-A1)

C2.50~5.00
Cr25.0~32.0
Mn≤8.00
Ni3.00~5.00

Used for surfacing welding on occasions requiring intense wear-resistance, corrosion-resistance and atmospheric corrosion-resistance, such as axle bushes of centrifugal cracking pumps in petroleum industry, parts of mining crushers, valve bonnets on diesel engines, etc.

SW707

EDW-A-15

C1.50~3.00
W40.0~50.0
Mn≤2.00

Used for surfacing welding on intense rock wear-resistant machinery elements, such as blades of concrete mixers, blades of bulldozers and pumps, blades of dredgers, high speed sand mixing boxes, etc.