Type

Model

Chemical composition

Mechanical prosperities

Usage

SW350

C≤0.03
Mn0.20~0.50
Si0.20~0.50
Al≤0.05

Rm≥340MPa
A≥22%
KV2(J)≥80(normal temperature)

Specially used for welding inner parts of ammonia synthesis towers of micro-carbon and pure iron. Able to resist high temperature hydrogen, nitrogen and ammonia, and also used for welding or producing transition layers which require crack resistance but does not require uniform strength.

SW421

E4313
(E6013)

C≤0.10
Mo0.32-0.55
Si≤0.30

Rm440～570MPa
Rel≥355MPa
A≥22%
Akv≥47J(0℃)

For welding low carbon steel light-gauge sheet structures

SW421Fe

E4313
(E6013)

C≤0.12
Mn0.30~0.60
Si≤0.35
P≤0.040

Rm≥420MPa
Rel≥330MPa
A≥17%
KV2(J)—(normal temperature)

For welding general low-carbon steel structures, especially suitable for welding on thin plates, intermittent welding with short weld heads and cosmetic welding which requires the weld beads to be glossy.

SW421Fe16

E4324
(E6024)

C≤0.12
Mn0.30~0.60
Si≤0.35
P≤0.040

Rm≥420MPa
Rel≥330MPa
A≥17%
KV2(J)—(normal temperature)

Used for downhand welding and flat fillet welding on general low-carbon steel structures.

SW421Fe18

E4324
(E6024)

C≤0.12
Mn0.30~0.60
Si≤0.35
P≤0.040

Rm≥420MPa
Rel≥330MPa
A≥17%
KV2(J)—(normal temperature)

Used for downhand welding and flat fillet welding on general low-carbon steel structures.

SW421X

E4313
(E6013)

C≤0.10
Mo0.32-0.55
Si≤0.30

Rm≥420MPa
Rel≥330MPa
A≥17%
Akv≥27J(0℃)

Used for welding low carbon steel structure and galvanized steel, applications in thin made downward welding and intermittent welding

SW422

E4303

C≤0.10
Mo0.32-0.55
Si≤0.25

Rm≥420MPa
Rel≥330MPa
A≥22%
Akv≥27J(0℃)

For welding key structures of low carbon steel as well as low-alloy steel .

SW422Fe

E4303

C≤0.12
Mo0.30~0.60
Si≤0.25

Rm≥420MPa
Rel≥330MPa
A≥22%
Akv≥27J(0℃)

Suitable for welding key low-carbon steel structures.

SW422Fe16

E4323

C≤0.12
Mo0.30~0.60
Si≤0.25

Rm≥420MPa
Rel≥330MPa
A≥22%
Akv≥27J(0℃)

Used for welding key low-carbon steel structures.

SW422GM

E4303

C≤0.10
Mo0.32-0.55
Si≤0.25

Rm≥420MPa
Rel≥330MPa
A≥22%
Akv≥27J(0℃)

Suitable for welding key structures of low carbon steel and low-alloy steel.

SW423

E4301

C≤0.10
Mn0.32-0.55
Si≤0.30

Rm≥420MPa
Rel≥330MPa
A≥22%
Akv≥27J(-20℃)

For welding low carbon steel structures.

SW424

E4320
(E6020)

C≤0.12
Mn0.50~0.90
Si≤0.25

Rm≥420MPa
Rel≥330MPa
A≥22%
Akv—(normal temperature)

Able to weld key low-carbon structures, such as heavy machinery, construction machinery, etc.

SW425

E4311

C≤0.20
Mn0.30~0.60
Si≤0.30

Rm≥420MPa
Rel≥330MPa
A≥22%
Akv≥27(-30℃)

Suitable for butt welding, fillet welding and lap welding on thin plates, such as low-carbon steel structures like flues of power stations, air ducts, transformer oil tanks, hulls, exterior panels of cars, etc.

SW425X

E4310
E4311

C≤0.20
Mn0.32-0.60
Si≤0.30

Rm≥420MPa
Rel≥330MPa
A≥22%
Akv≥27J(-30℃)

Apply to low carbon steel tube, low alloy steel tube girth, all position from top to bottom welding. When the welding one-side welding double-sided molding, easy to operate.

SW426

E4316
(E6016)

C≤0.10
Mn≤1.25
Si≤0.90

Rm≥420MPa
Rel≥330MPa
A≥22%
Akv≥27J(-30℃)

For welding key structures of low carbon steel and low-alloy steel.

SW427

E4315

C≤0.12
Mn≤1.25
Si≤0.90

Rm≥420MPa
Rel≥330MPa
A≥22%
Akv≥27(-30℃)

Used for welding key steel structures under pressure and loads, low-carbon steel thick plate structures and low-alloy steel structures, such as machinery, shipbuilding, bridges, pressure vessels, etc.

SW427D

E4315

C≤0.12
Mn≤1.25
Si≤0.90

Rm≥420MPa
Rel≥330MPa
A≥22%
Akv≥27(-30℃)

Specially used for backing weld on carbon steel and low-alloy steel structures with corresponding strength

SW427Ni

E4315

C≤0.12
Mn0.50~0.90
Si≤0.50
Ni≤0.70

Rm≥420MPa
Rel≥330MPa
A≥22%
Akv≥27

Used for welding key low-carbon steel structures and key low-alloy steel structures with corresponding strength, such as ship steel (A, B, D and E of Q235 series), boilers, bridges, pressure vessels, other structures under moving loads and low temperature

SW501Fe

E5014
(E7014)

C≤0.12
Mn≤1.25
Si≤0.9

Rm≥490MPa
Rel≥400MPa
A≥17%
Akv≥27(0℃)

Used for welding carbon steel and low-alloy structures, such as welding on ships, vehicles and machinery structures of 16Mn type.

SW501Fe15

E4024
(E7024)

C≤0.12
Mn≤1.25
Si≤0.9

Rm≥490MPa
Rel≥400MPa
A≥17%
Akv≥27(0℃)

Used for welding carbon steel and low-alloy structures, such as A, B and D steel, ships, locomotive vehicles, boilers of 16Mn type, etc.

SW501Fe18

E4024
(E7024)

C≤0.12
Mn≤1.25
Si≤0.90

Rm≥490MPa
Rel≥400MPa
A≥17%
Akv≥47J(0℃)

The purpose is the same as THJ501Fe15, deposition efficiency is about 80%.

SW502

E5003

C≤0.10
Mn≤1.25
Si≤0.30

Rm≥490MPa
Rel≥400MPa
A≥20%
Akv≥27J(0℃)

For welding general structures of 16Mn and low-alloy steel.

SW503

E5001

C≤0.12
Mn0.5~0.9
Si≤0.30

Rm≥490MPa
Rel≥400MPa
A≥20%
Akv≥27(0℃)

Suitable for welding low-alloy steel, such as 16Mn, etc.

SW505

E5011

C≤0.20
Mn0.4~0.6
Si≤0.2

Rm≥490MPa
Rel≥400MPa
A≥20%
Akv≥27(-30℃)

Suitable for vertical downward welding and fillet welding on carbon and low-alloy steel structures, such as 16Mn, 15MnVN, etc.

SW506

E5016
(E7016)

C≤0.10
Mn≤1.60
Si≤0.75

Rm≥490MPa
Rel≥400MPa
A≥20%
Akv≥27J(-30℃)

For welding medium carbon steel structures and some key structures of low-alloy steel like 16Mn.

SW506D

E5016
(E7016)

C≤0.10
Mn≤1.60
Si≤0.75

Rm≥490MPa
Rel≥400MPa
A≥22%
Akv≥27J(-30℃)

For backing welding of medium carbon steel and low-alloy steel.

SW506Fe

E5018
(E7018)

C≤0.12
Mn≤1.60
Si≤0.75

Rm≥490MPa
Rel≥400MPa
A≥22%
Akv≥27J(-30℃)

High efficient welding electrodes for welding low-alloy steel structures.

SW506Fe-1

E5016-1
(E7018-1)

C≤0.12
Mn≤1.60
Si≤0.75

Rm≥490MPa
Rel≥400MPa
A≥20%
Akv≥27J(-46℃)

The purpose is the same as THJ506-1, medicine skin contains iron powder,it can improve the efficiency of the electrode deposition rates, process performance is good

SW506Fe16

E5028
(E7028)

C≤0.12
Mn≤1.60
Si≤0.75

Rm≥490MPa
Rel≥400MPa
A≥22%
Akv≥27(-20℃)

Used for downhand welding and flat fillet welding on carbon steel and low-alloy steel structures, such as 16Mn, 09Mn2Si and A, B, D and E steel for ships, etc.

SW506Fe18

E5028
(E7028)

C≤0.10
Mn≤1.60
Si≤0.75

Rm≥490MPa
Rel≥400MPa
A≥22%
Akv≥27(-20℃)

Used for downhand welding and flat fillet welding on carbon steel and low-alloy steel structures, such as 16Mn, 09Mn2Si and A, B, D and E steel for ships, etc.

SW506H

E5016-1
(E7016-1)

C≤0.12
Mn≤1.60
Si≤0.70

Rm≥490MPa
Rel≥400MPa
A≥22%
Akv≥27(-46℃)

Used for welding key carbon steel and low-alloy steel structures

SW506X

E5016
(E7016)

C≤0.12
Mn≤1.60
Si≤0.70

Rm≥490MPa
Rel≥400MPa
A≥22%
Akv≥27(-30℃)

Suitable for welding vertical downward fillet weld of carbon steel and low-alloy steel structures.

SW507

E5015
(E7015)

C≤0.12
Mn≤1.60
Si≤0.75

Rm≥490MPa
Rel≥400MPa
A≥22%
Akv≥47J(-30℃)

Suitable for welding key structures for medium carbon steel and 16Mn low-alloy steel structures.

SW507D

E5015
(E7015)

C≤0.12
Mn≤1.60
Si≤0.75

Rm≥490MPa
Rel≥400MPa
A≥22%
Akv≥27(-30℃)

Specially used for backing weld on groove bottom of carbon steel and low-alloy steel structures, such as 16Mn, 09Mn2Si and A, B, D and E steel for ships, etc.

SW507Fe

E5018
(E7018)

C≤0.12
Mn≤1.60
Si≤0.75

Rm≥490MPa
Rel≥400MPa
A≥22%
Akv≥27(-30℃)

Used for welding carbon and low-alloy steel structures, such as 16Mn, etc.

SW507Fe16

E5028
(E7028)

C≤0.12
Mn≤1.60
Si≤0.75

Rm≥490MPa
Rel≥400MPa
A≥22%
Akv≥27(-20℃)

Used for downhand welding and flat fillet welding on carbon steel and low-alloy steel structures, such as 16Mn, 09Mn2Si, 09Mn2V and A, B, D and E steel for ships, etc.

SW507H

E5015-1
(E7015-1)

C≤0.12
Mn≤1.60
Si≤0.75

Rm≥490MPa
Rel≥400MPa
A≥22%
Akv≥27(-46℃)

Used for welding key carbon steel and low-alloy steel structures.

SW507X

E5015
(E7015)

C≤0.12
Mn≤1.60
Si≤0.75

Rm≥490MPa
Rel≥400MPa
A≥22%
Akv≥27(-30℃)

Suitable for welding vertical downward fillet weld of carbon steel and low-alloy steel structures.