Type

Model

Chemical composition

Mechanical prosperities

Usage

SW6010

E4310
(E6010)

C≤0.20
Mn0.3~0.6
Si≤0.2
Cr~0.30

Rm≥420MPa
ReL≥330MPa
A≥22%
KV2(J)≥27(-30℃)

Used for butt welding of circumferential seam on all kinds of carbon steel pipes, and also suitable for vertical downward welding on general carbon steel structures.

SW7010

E5010-G
(E7010-G)

C≤0.20
Mn0.4~0.6
Si≤0.2
Mo~0.40

Rm≥490MPa
ReL≥400MPa
A≥20%
KV2(J)≥27(-30℃)

Used for butt welding of circumferential seam on all kinds of carbon steel pipes, and also suitable for vertical downward welding on general carbon steel structures.

SW8010

E5510-G
(E8010-G)

C≤0.20
Mn0.5~0.7
Si≤0.2
Mo~0.50

Rm≥540MPa
ReL≥440MPa
A≥17%
KV2(J)≥27(-30℃)

Used for filling and cosmetic welding of carbon steel and low-alloy steel pipelines with the same strength grades, and also suitable for vertical downward welding on general structures with the same strength grades.

SW507FeXG

E5048
(E7048)

C≤0.12
Mn0.8~1.3
Si≤0.75
Mo≤0.30

Rm≥490MPa
ReL≥400MPa
A≥22%
KV2(J)≥27(-30℃)

Suitable for downward welding, downward fillet welding and downward butt groove welding on round pipes with thickness lower than or equal to 9mm, and also used for downward backing weld on round pipes with thickness higher than 9mm.

SW507XG

E5015
(E7015)

C≤0.12
Mn0.8~1.3
Si≤0.75
Mo≤0.30

Rm≥490MPa
ReL≥400MPa
A≥22%
KV2(J)≥27(-30℃)

Suitable for downward welding, downward fillet welding and downward butt groove welding on round pipes with thickness lower than or equal to 9mm, and also used for downward backing weld on round pipes with thickness higher than 9mm

SW556FeXG

E5518-G
(E8018-G)

C≤0.12
Mn≥1.00
Si≤0.70

Rm≥540MPa
ReL≥440MPa
A≥17%
KV2(J)≥27(-30℃)

Suitable for filling welding and cosmetic welding on medium-carbon steel and low-alloy steel pipes with corresponding strength grades, and also used for downward fillet welding and downward butt groove welding on structural steel with the same strength grades.