Item |
Main Applications |
D167 |
Used for surfacing welding on wornout parts of agricultural and construction machinery, etc., such as large type dozers, |
D207 |
Used for surfacing welding on worn-out parts of bulldozer blades, airscrews, etc. |
D212 |
Used for single layer or multilayer surfacing welding on the surfaces of all kinds of wornout parts, such as gears, buckets, |
D256 |
Used for surfacing welding on parts of all kinds of crushers, highmanganese steel rails, buckets, bulldozers, etc., which may |
D277 |
Suitable for surfacing welding on parts of water turbines wornout by atmospheric corrosion, such as blades and water blades |
D307 |
Able to be used for surfacing welding on cutter blanks made of mediumcarbon steel (such as 45 and 45Mn steel) to make blades |
D317 |
Suitable for surfacing welding on cold-punching dies, and also used for surfacing welding on general cutting tools. |
D507 |
This is a kind of universal electrode used for surface overlaying, used for surfacing welding on axles, valves, et. Made of |
D512 |
D512 is a kind of universal electrode used for surface overlaying. The surfacing layer is harder, more wearresistant and more |
D557 |
Suitable for surfacing welding high-pressure valve under tempeature of 600℃. |
D608 |
Used for welding parts of agricultural machinery, mining equipment, etc. which receive grit wear and slight impact. |
D707 |
Used for surfacing welding on intense rock wearresistant machinery elements, such as blades of concrete mixers, blades |
Item |
GB |
Type of Coating |
Current |
Hardness |
Chemical Composition of Deposited Metals(wt%) | ||||||||
C |
Mn |
Cr |
Mo |
W |
S |
P |
Si |
Others | |||||
D167 |
EDPMn6-15 |
Low-hydrogen Type |
DC+ |
HRC≥50 |
≤0.45 |
≤6.50 |
|
|
|
|
|
≤1.00 |
|
D207 |
EDPCrMnSi-15 |
Low-hydrogen Type |
DC+ |
HRC≥50 |
0.50~1.00 |
≤2.50 |
≤3.50 |
|
|
|
|
≤1.00 |
≤1.00 |
D212 |
EDPCrMo-A4-03 |
Lime-titania Type |
AC, DC |
HRC≥50 |
0.30-0.60 |
|
≤5.00 |
≤4.00 |
|
|
|
|
|
D256 |
EDMn-A-16 |
Low-hydrogen Type |
AC, DC+ |
HB≥170 |
≤1.10 |
11.0~16.0 |
|
|
|
|
|
≤1.30 |
≤5.00 |
D277 |
EDCrMn-B-15 |
Low-hydrogen Type |
DC+ |
HRC≈20 |
≤0.80 |
11.0~16.0 |
13.0~17.0 |
|
|
|
|
≤0.80 |
≤4.00 |
D307 |
EDD-D-15 |
Low-hydrogen Type |
DC+ |
HRC≥55 |
0.70~1.00 |
11.0~16.0 |
3.80~4.50 |
|
17.0~19.5 |
≤0.035 |
≤0.04 |
≤0.80 |
≤1.50 |
V: 1.0~1.5 | |||||||||||||
D317 |
EDRCrMoWV-A3-15 |
Low-hydrogen Type |
DC+ |
HRC≥50 |
0.70~1.00 |
|
3.00~4.00 |
3.00~5.00 |
4.50~6.00 |
≤0.035 |
≤0.04 |
|
≤1.50 |
V:1.5~3.0 | |||||||||||||
D507 |
EDCr-A1-15 |
Low-hydrogen Type |
DC+ |
HRC≥40 |
≤0.15 |
|
10.0~16.0 |
|
|
≤0.030 |
≤0.04 |
|
≤2.50 |
D512 |
EDCr-B-03 |
Lime-titania Type |
AC, DC |
HRC≥45 |
≤0.25 |
|
10.0~16.0 |
|
|
|
|
|
≤5.00 |
D557 |
EDCrNi-C-15 |
Low-hydrogen Type |
DC+ |
HRC≥37 |
≤0.20 |
2.0~3.0 |
18.0~20.0 |
|
|
≤0.030 |
≤0.04 |
5.0~7.0 |
Ni 7.0~10.0 |
D608 |
EDZ-A1-08 |
Graphite Type |
AC, DC+ |
HRC≥55 |
2.50~4.50 |
|
3.00~5.00 |
3.00~5.00 |
|
|
|
|
|
D707 |
EDW-A-15 |
Low-hydrogen Type |
DC+ |
HRC≥60 |
1.50~3.00 |
≤2.0 |
|
|
40.0~50.0 |
|
|
≤4.00 |
|