Standard & Typical Chemical Composition of Deposited Metal (%)
Hardness of Deposited Metal
HRC
Applications
C
Mn
Si
S
P
Cr
Ni
Mo
V
W
Nb
Other Elements
CHR107
Low hydrogen
Sodium
GB EDPMn2-15
F,V,
OH,H
DC+
≤0.20
0.089
≤3.50
2.80
—
—
—
—
—
—
—
—
—
—
HB≥220
300.6
Surfacing and repair welding of worn parts surface of low carbon, medium
carbon and low alloy steel.
CHR112
Lime titania
GB EDPCrMo-A1-03
F,V,
OH,H
AC or DC+
≤0.25
0.20
—
—
—
—
≤2.00
1.00
—
≤1.50
0.52
—
—
—
≤2.00
HB≥220
Surfacing and repair welding of worn parts surface of low carbon, medium
carbon and low alloy steel.
CHR127
Low hydrogen
Sodium
GB EDPMn4-15
F,V,
OH,H
DC+
≤0.20
0.11
≤4.50
3.60
—
—
—
—
—
—
—
—
—
≤2.00
≥30
41.1
Surfacing of worn surface of low and medium carbon steels or low alloy
steels.
CHR132
Lime titania
GB EDPCrMo-A2-03
F,V,
OH,H
AC or DC+
≤0.50
0.29
—
—
—
—
≤3.00
2.00
—
≤1.50
0.74
—
—
—
—
≥30
44.5
Surfacing and repair welding of worn surface of low and medium carbon steels
or low alloy steels.
CHR172
Lime titania
GB EDPCrMo-A3-03
F,V,
OH,H
AC or DC+
≤0.50
0.34
—
—
—
—
≤2.50
2.30
—
≤2.50
1.90
—
—
—
—
≥40
50.4
Surfacing of worn parts of gear wheel, mining machinery etc.
CHR207
Low hydrogen
Sodium
GB EDPCrMnSi-A1-15
F,V,
OH,H
DC+
0.30-1.00
0.90
≤2.50
2.00
≤1.00
0.67
≤0.035
0.007
≤0.035
0.025
≤3.50
3.00
—
—
—
—
—
≤1.00
≥50
55.2
Surfacing of worn parts of bulldozer blade propeller etc.
CHR212
Lime titania
GB/ 984 EDPCrMo-A4-03
F,V,
OH,H
AC or DC+
0.30-0.60
0.45
—
—
—
—
≤5.00
4.00
—
≤4.00
1.30
—
—
—
—
≥50
57.7
One layer and multi-layer surfacing of worn parts surface of gear wheel,
excavator and mining machinery etc.
CHR237
Low hydrogen
Sodium
GB/T 984 EDPCrMoV-A1-15
F,V,
OH,H
DC+
0.30-0.60
0.50
—
—
—
—
8.00-10.00
9.40
—
≤3.00
2.40
0.50-1.00
0.67
—
—
≤4.00
≥50
57.2
Surfacing of silt worn and atmosphere corrosive hydraulic machinery,
excavator and parts of mining machinery etc.
CHR256
Low hydrogen
Potassium
AWS A5.13 EFeMn-A
F,V,
OH,H
AC≥70V
or DC+
≤1.10
0.80
11.00-16.00
13.30
≤1.30
0.50
—
—
—
—
—
—
—
—
≤5.00
HB≥170
193.8
Surfacing of easy-impacted, easy-worn parts of crushers, rails, bulldozers
etc.
CHR266
Low hydrogen
Potassium
AWS A5.13 EFeMn-B
F,V,
OH,H
AC or DC+
0.5-1.0
0.80
12.00-16.00
13.00
≤1.30
0.51
—
—
—
—
0.50-1.50
1.30
—
—
—
≤1.00
0.78
HB≥170
199
It is suitable for hardfacing abraded parts of crusher machines, excavators,
bulldozers, switches of railway and so on.
CHR276
Low hydrogen
Potassium
GB/T 984 EDCrMn-B-16
F,HF
AC or DC+
≤0.80
0.65
11.00-18.00
12.58
≤1.30
0.72
—
—
13.00-17.00
14.30
≤2.00
0.052
≤2.00
1.00
—
—
—
≤4.00
HB≥210
212.6
Surfacing of high manganese steel structures.
CHR307
Low hydrogen
Sodium
GB/T 984 EDD-D-15
F,V,
OH,H
DC+
0.70-1.00
0.90
—
—
≤0.035
0.010
≤0.040
0.019
3.80-4.50
4.30
—
—
1.00-1.50
1.20
17.00-19.50
18.80
—
≤1.50
≥55
61.8
Surfacing of blade of semifinished cutting tool made of medium carbon steel,
and repair welding worn cutting tool or other tool.
CHR322
Lime titania
GB/T 984 EDRCrMo WV-A1-03
F,V,
OH,H
AC or DC+
≤0.50
0.42
—
—
≤0.035
0.011
≤0.040
0.026
≤5.00
4.30
—
≤2.50
2.00
≤1.00
0.60
7.00-10.00
8.60
—
—
≥55
60.3
Surfacing of blade of model and cutting, and repair welding of mechanical
parts requiring high function for wear resistance.
CHR326Ni
Low hydrogen
Potassium
DGS K 501.21-2004
VD,F,
OH
AC or DC+
≤0.50
0.36
—
—
—
—
≤5.50
3.56
1.30-2.80
1.72
≤2.50
0.96
≤1.50
1.40
6.00-9.00
7.39
—
—
≥45
57.4
Surfacing and repair welding high wear resistance parts, such as, edges of
cutting machines,models.
CHR327
Low hydrogen
Sodium
GB/T 984 EDRCrMo WV-A1-15
F,V,
OH,H
DC+
≤0.50
0.41
—
—
≤0.035
0.013
≤0.040
0.025
≤5.00
3.90
—
≤2.50
1.98
≤1.00
0.60
7.00-10.00
8.70
—
—
≥55
Surfacing of blade of model and cutting, and repair welding of mechanical
parts requiring high function for wear resistance.
CHR337
Low hydrogen
Sodium
GB/T 984 EDRCrW-15
F,V,
OH,H
DC+
0.25-0.55
0.43
—
—
≤0.035
0.008
≤0.040
0.019
2.00-3.50
2.90
—
—
—
7.00-10.00
9.40
—
≤1.00
≥48
59.3
Surfacing of forging model for cast steel and forge steel. Also repair
welding of forging model.
CHR397
Low hydrogen
Sodium
GB/T 984 EDRCrMnMo-15
F,V,
OH,H
DC+
≤0.60
0.46
≤2.50
1.00
≤1.00
0.62
≤0.035
0.006
≤0.040
0.019
≤2.00
1.20
—
≤1.00
0.64
—
—
—
—
≥40
55.2
Surfacing of cast steels and heat forging model. Also repair welding of worn
forging model.
CHR502
Lime titania
GB/T 984 EDCr-A1-03
F,V,
OH,H
AC or DC+
≤0.15
0.13
—
—
≤0.03
0.007
≤0.04
0.024
10.00-16.00
11.30
—
—
—
—
—
—
≥40
55.5
It is widely for hardfacing carbon steel and low alloy steel axis, shafts
and valves that working temperature is below 450℃.
CHR507
Low hydrogen
Sodium
JIS Z3251 DF-4A
GB/T 984 EDCr-A1-15
F,V,
OH,H
DC+
≤0.15
0.13
—
—
≤0.030
0.008
≤0.040
0.020
10.00-16.00
13.20
—
—
—
—
—
≤2.50
≥40
43.1
Surfacing of axles and valves made of carbon steel and alloy steel, working
temperature of which is below 450 ℃.
CHR507Mo
Low hydrogen
Sodium
GB/T 984 EDCr-A2-15
F,V,
OH,H
DC+
≤0.20
0.12
—
—
—
—
10.00-16.00
12.30
≤6.00
1.50
≤2.50
1.60
—
≤2.00
1.20
—
≤2.50
≥37
42.3
Surfacing of valves, which work temperature should be below 510 ℃.
CHR507MoNb
Low hydrogen
Sodium
DGS K 501.31-2004
F,V,
OH,H
DC+
≤0.15
0.13
—
—
≤0.030
0.005
≤0.040
0.019
10.00-16.00
12.60
—
≤2.50
0.85
—
—
≤0.50
0.30
≤2.50
≥37
45.8
Surfacing of sealing surface for middle and low pressure valves working
temperatures of which is below 450 ℃.
CHR517
Low hydrogen
Sodium
GB/T 984 EDCr-B-15
F,V,
OH,H
DC+
≤0.25
0.18
—
—
—
—
10.00-16.00
13.00
—
—
—
—
≤5.00
≥45
51.0
Surfacing of axles made of carbon steel and low alloy steel valves, working
temperatures of which is below 450 ℃.
CHR547Mo
Low hydrogen
Sodium
GB/T 984 EDCrNi-B-15
F
DC+
≤0.18
0.14
0.60-5.00
1.40
3.80-6.50
4.25
≤0.030
0.006
≤0.040
0.020
14.00-21.00
17.28
6.50-12.00
10.30
3.50-7.00
4.98
—
—
0.50-1.20
0.85
≤2.50
≥37
47.0
Surfacing and sealing surface for high pressure valves working temperature
of which is below 600 ℃.
CHR547MoA
Low hydrogen
Sodium
DGS K 501.41-2004
F
DC+
≤0.18
0.13
1.00-2.50
1.31
2.00-3.20
2.60
≤0.030
0.010
≤0.040
0.027
14.00-20.00
16.00
8.00-12.50
9.63
3.50-7.00
6.10
≤1.50
0.68
≤2.80
2.00
0.50-1.20
0.73
—
≥37
45.4
Surfacing and sealing surface for high pressure valves working temperature
of which is below 600 ℃.
CHR577
Low hydrogen
Sodium
JIS Z3251 DF-ME
GB/T 984 EDCrMn-C-15
F
DC+
≤1.10
1.00
12.00-18.00
13.70
≤2.00
1.24
—
—
12.00-18.00
14.30
≤6.00
0.13
≤4.00
3.30
—
—
—
≤3.00
≥28
32.2
Surfacing and sealing surface for middle temperature high pressure valves
working temperature of which is below 510 ℃.
CHR608
Graphite
GB/T 984 ED Z-A1-08
F,V,
OH,H
AC or DC+
2.50-4.50
2.80
—
—
—
—
3.00-5.00
4.80
—
3.00-5.00
4.20
—
—
—
—
≥55
59.2
Surfacing parts of agricaltural machinery and mining equipments worn and
inpacled by grits.
CHR618
Graphite
DGS K 501.51-2004
F,V,
OH,H
AC or DC+
≤4.00
1.00-2.50
—
≤0.030
≤0.050
15.00-25.00
—
3.00-6.50
—
—
—
≤6.00
≥48
Surfacing parts worn by grit, air, water at normal and middle temperature.
CHR646
Low hydrogen
Potassium
GB/T 984 ED ZCr-B-16
F
AC or DC+
1.50-3.50
2.20
≤1.00
0.12
—
—
—
22.00-32.00
29.00
—
—
—
—
—
≤7.00
≥45
51.2
Surfacing structures of high temperature and high temperature wear
resistance corrosion resistance. Such as hydraulic turbine vanes, parts of
high pressure pump, etc.
CHR648
Graphite
GB/T 984 ED ZCr-B-08
F
AC or DC+
1.50-3.50
2.20
≤1.00
0.15
—
—
—
22.00-32.00
28.00
—
—
—
—
—
≤7.00
≥45
53.0
Surfacing structures of high temperature and high temperature wear
resistance corrosion resistance. Such as hydraulic turbine vanes, parts of
high pressure pump, etc.
CHR678
Graphite
GB/T 984 ED Z-B1-08
F
AC or DC+
1.50-3.50
1.60
—
—
—
—
—
—
—
—
8.00-10.00
8.60
—
≤1.00
≥50
54.0
Surfacing of parts for mining machinery and crusher machinery.
CHR698
Graphite
GB/ 984 ED Z-B2-08
F
AC or DC+
≤3.00
1.70
—
—
—
—
4.00-6.00
5.13
—
—
—
8.50-14.00
11.24
—
≤3.00
≥60
63.0
Surfacing of mining machinery and mud pump.
CHR707
Low hydrogen
Sodium
GB/T 984 ED W-A-15
F
DC+
1.50-3.00
2.70
≤2.00
1.33
≤4.0
0.51
—
—
—
—
—
—
40.00-50.00
43.00
—
Fe
Rem.
≥60
64.6
Surfacing of rock strong wear resisting parts, such as concrete mixer vanes,
bulldozer and vanes, excavater vanes.