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Concise Classification & Application Table for Low Alloy Steel Electrode

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Concise Classification & Application Table for Low Alloy Steel Electrode

No. Electrode Grade Coating Type Type of Welding Current Main Application
1 CHE502WCu Titania Calcium Type AC-DC Welding of Weather-resistant Steels for Railway Vehicles, such as 09MnTiPC u, 09CuTiR E
2 CHE505Mo cellulose Sodium Type DC For Backing Welding of Pressure Pipelines and Like Material Structures
3 CHE506NiCrCu Low Hydrogen Type AC-DC For Welding of Weather-resistant Steels, such as Q40ONQR 1
4 CHE506NiLH Low Hydrogen Type AC-DC Welding Low Alloy Steel Important Structures, such as Offshore Platforms, Ships etc
5 CHE506WCu Low Hydrogen Type AC-DC Welding Low Alloy Steel Important Structures, such as Offshore Platforms, Ships etc
6 CHE507NiLH Low Hydrogen Type DC+ Welding of Important Low Alloy Steel Structures, such as Boilers, Offshore Platforms etc.
7 CHE507RH Low Hydrogen Type DC+ Welding of Important Low Alloy Steel Structures, such as Boilers, Offshore Platforms etc.
8 CHE507CuP Low Hydrogen Type DC+ Welding Atmosphere & Sea Water Corrosion- Resistant Steels with Cu-P System
9 CHE507MnMo Low Hydrogen Type DC+ Welding H2S-resistant Steels, such as 14MnMoNbC u etc.
10 CHE507CrNi Low Hydrogen Type DC+ For Welding of Sea Water Corrosion Resistant Steels
11 CHE507FeNi Low Hydrogen Type DC+ For Medium Carbon Steels etc.
12 CHE508Ni Low Hydrogen Type AC-DC For Welding of Low Alloy Steels Structure of Same Grade
13 CHE508WI Low Hydrogen Type AC-DC For Welding of Weather-resistant Steels, such as Q40ONQR 1
14 CHE556NiCrCu Low Hydrogen Type AC-DC For Welding of Weather-resistant Steels, such as Q40ONQR 1
15 CHE556H Low Hydrogen Type AC-DC For Welding of High Performance, Fire- resistant and Weather-Resistant Construction Steels, such as WGJ510C2
16 CHE557 Low Hydrogen Type DC+ Welding Medium Carbon Steels and Low Alloy Steels such as15MnT I
17 CHE557RH Low Hydrogen Type DC+ Welding of Pressure Vessels, Bridges, Power Plant Downpipes and Offshore Engineerings
18 CHE557MoV Low Hydrogen Type DC+ Welding Medium Carbon Steels and Low Alloy Steels with Corresponding Strength
19 CHE557Ni Low Hydrogen Type DC+ Welding of Medium Carbon Steels such as Pressure Vessels, Bridges, Ships and Boilers, and Low Alloy Steel Structures with Corresponding Strength Level
20 CHE558 Low Hydrogen Type AC-DC Welding Medium Carbon Steels and Low Alloy Steels such as15MnT I、15Mn V
21 CHE558Ni Low Hydrogen Type DC+ For Welding of Low Alloy Steel Structures with Same Level, such as 15MnTi,15Mn V etc.
22 CHE558CrNiCu Low Hydrogen Type AC-DC Welding of Weather-resistant Steels such as ASTMA24 2, A58 8, Q450NQR 1
23 CHE62CFLH Low Hydrogen Type DC+ Welding 62C F Carbon Steels and Low Alloy Steels with Corresponding Strength
24 CHE606 Low Hydrogen Type AC-DC Welding Medium Carbon Steels and Low Alloy Steels with Corresponding Strength
25 CHE606NiCrCu Low Hydrogen Type AC-DC For Welding of Weather-resistant Steels, such as Q50ONQR 1
26 CHE607 Low Hydrogen Type DC+ Welding Medium Carbon Steels and Low Alloy Steels with Corresponding Strength
27 CHE607Ni Low Hydrogen Type DC+ Welding Steels Tend to Hot Re-tearing
28 CHE607RH Low Hydrogen Type DC+ Welding of Pressure Vessels, Bridges, Power Plant Downpipes and Offshore Engineerings. Matching CF60(62), WH610D Steels Very Well.
29 CHE707 Low Hydrogen Type DC+ Welding Low Alloy Steels with Corresponding Strength
30 CHE707Ni Low Hydrogen Type DC+ Welding Low Alloy Steels with Corresponding Strength
31 CHE757 Low Hydrogen Type DC+ Welding Low Alloy Steels with Corresponding Strength
32 CHE707RH Low Hydrogen Type DC+ Welding Low Alloy Steels with Corresponding Strength
33 CHE757Ni Low Hydrogen Type DC+ Mainly For Welding of Important Low Alloy Steels Structures with Corresponding Strength Grade. For Example, Welding Assemblies of Steels such as 14MnMoNb B and WEL-TEN8 0 etc.
34 CHE758 Low Hydrogen Type AC-DC Welding Low Alloy Steels with Corresponding Strength
35 CHE80C Low Hydrogen Type DC+ Welding WEL-TEN80 C Steels
36 CHE807 Low Hydrogen Type DC+ Welding WEL-TEN80 C Steels
37 CHE807RH Low Hydrogen Type DC+ Welding of Pressure Vessels, Bridge, power plant Downpipes and Offshore Engineerings. It is a Electrode Matched CF8 0 Steels Well.
38 CHE857 Low Hydrogen Type DC+ Welding Low Alloy Steels with Corresponding Strength
39 CHE857Cr Low Hydrogen Type DC+ Welding Low Alloy Steels with Corresponding Strength
40 CHE857CrNi Low Hydrogen Type DC+ Welding of Class E Steels
41 CHE858 Low Hydrogen Type AC-DC Welding Low Alloy Steels with Corresponding Strength
42 CHH107 Low Hydrogen Type DC+ For Welding of Perlite Heat Resistant Steels with Service Temperature below 510℃
43 CHH108 Low Hydrogen Type AC-DC For Welding of Perlite Heat Resistant Steels with Service Temperature below 510℃
44 CHH202 Titania Calcium Type AC-DC For Welding of Perlite Heat Resistant Steels with Service Temperature below 510℃
45 CHH207 Low Hydrogen Type DC+ The same as CHH202
46 CHH302 Titania Calcium Type AC-DC For Welding of Perlite Heat Resistant Steels with Service Temperature below 520℃
47 CHH307 Low Hydrogen Type DC+ For Welding of Perlite Heat Resistant Steels with Service Temperature below 520℃
48 CHH308 Low Hydrogen Type AC-DC For Welding of Low Alloy Steels(Chrome 1%,Molybdenum 0.5%) with Service Temperature below 520℃
49 CHH312 Titania Calcium Type AC-DC For Welding of Perlite Heat Resistant Steels with Service Temperature below 540℃
50 CHH317 Low Hydrogen Type DC+ For Welding of Perlite Heat Resistant Steels with Service Temperature below 540℃
51 CHH327 Low Hydrogen Type AC-DC+ For Welding of Perlite Heat Resistant Steels with Service Temperature below 570℃
52 CHH337 Low Hydrogen Type DC+ For Welding of Perlite Heat Resistant Steels with Service Temperature below 570℃
53 CHH347 Low Hydrogen Type DC+ For Welding of Heat Resistant Steels with Service Temperature below 620℃
54 CHH407 Low Hydrogen Type DC+ For Welding of Cr2.25M o Perlite Heat Resistant Steels
55 CHH408 Low Hydrogen Type AC-DC For Welding of Cr2.25M o Perlite Heat Resistant Steels
56 CHH417 Low Hydrogen Type DC+ For Welding of (Π11) Steels with Service Temperature below 620℃
57 CHH707 Low Hydrogen Type DC+ For Welding Cr9Mo Steel Structures and Overheated Pipelines etc.
58 CHH717 Low Hydrogen Type DC+ For Welding of Heat Resistant Steels Used in Pipelines of Super critical Steam Turbine ZG1Cr10MoVNb N and T91/P9 1
59 CHH717A Low Hydrogen Type DC+ For Welding of Heat Resistant Steels Used in Pipelines of Super critical Steam Turbine ZG1Cr10MoVNb N and T91/P9 1
60 CHH727 Low Hydrogen Type DC+ For Welding of Improved CrMoNiWVN b Heat Resistant Steels
61 CHL107 Low Hydrogen Type DC+ For Welding of Heat Resistant Steels Used in Pipelines of Super critical Steam Turbine ZG1Cr10MoVNb N and T91/P9 1
62 CHL607 Low Hydrogen Type DC+ For Welding of Steels Used in -60℃ Low Temperature Condition, such as 09Mn D Steel
63 CHL608 Low Hydrogen Type AC-DC For Welding of Low Alloy Steels Used in -60℃ Low Temperature Condition, such as 2.5N I etc.
64 CHL707 Low Hydrogen Type DC+ For Welding of Steels Used in -70℃ Low Temperature Condition, such as 2.5N I Steel
65 CHL708 Low Hydrogen Type AC-DC For Welding of Low Alloy Steels Used in -70℃ Low Temperature Condition, such as 2.5N I etc.
66 CHL807 Low Hydrogen Type DC+ For Welding of Steels Used in -80℃ Low Temperature Condition, such as 3.5N i Steel

Note: According to GB/T5118-1995 "Low Alloy Steel Electrode" It is Specified that:
1、Exxxx-For Type G Electrode, the Compliance of only One Deposited Metal of Chemical Composition with the Specification is Enough.
2、Exxxx- The Notched Charpy Impact Absorbing Energy of Type G Electrodes is not Specified and can be Determined on the Agreement of the Two Parties.

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