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Welding MethodProduct MarkStandardCharacteristics and Applications
Shielded Metal Arc Welding

JL-E607R

NB/T 47018.2 E6215-G P
GB/T 32533 E6215-G P
ASME SFA-5.5 E9215-G		This electrode is used for welding 600 MPa grade crack-resistant steel and is a specialized electrode for large-scale petroleum storage tanks.
Submerged Arc WeldingJL-WH08Mn2Mo/JL-SJ101GB/T 36034 S62P3U CS-SUM31It is used for horizontal joint welding of 600MPa-grade steel in large oil storage tanks, involving multi-layer and multi-chain welding, such as 8MnNiVR and 12MnNiVR (WH610D2).
Active Gas Shielded Arc WeldingJL-G62-GGB/T 39281 G59A3 C1 N2MITThe 600MPa-grade copper-coated gas-shielded welding wire is specifically used for large-scale petroleum storage tank projects.
Electrogas WeldingJL-EG50
JL-EG60		JIS Z 3319 YFEG-22C
AWS A5.26 EG72T-G
refer to JIS Z 3319 YFEG-32C
refer to AWS A5.26 EG82T-Ni2		CO₂ gas-shielded flux-cored wire for electrogas welding. JL-EG50 is suitable for 500MPa-grade base materials, while JL-EG60 is suitable for 600MPa-grade base materials. It is suitable for high-efficiency vertical welding of tank side plates and can also be used for vertical joint welding of ship hull plates, various internal structures, and box girder plate overlays in bridges.
Submerged Arc WeldingJL-WH11Mn2Si/JL-HJ431GB/T 5293 S49A2 MS-SU31Carbon steel submerged arc welding wire combined with high-manganese, high-silicon, low-fluorine flux is used for submerged arc fillet welding of Q345 grade steel in large petroleum storage tanks.
Submerged Arc WeldingJL-WH08A/JL-HJ431GB/T 5293 S43A2 MS-SU08AThe combination of carbon steel submerged arc welding wire and silicon-manganese type flux is used for submerged arc horizontal welding of Q235 grade steel in large petroleum storage tanks.

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