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For Hardfacing
   
Welding Rods for Hardfacing   堆焊焊条                                    
Item Code Type of Covering Equivalent Norm Welding Position Type of Current 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.

 

       
   
 

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Last modified: April 25, 2008