Type

Model

Chemical composition

Mechanical prosperities

Usage

SW.H08MnSiCuCrNiⅡ

C≤0.10
Mn0.90~1.30
Si0.35~0.65
Cu0.20~0.50
Cr0.20~0.50
Ni0.20~0.50

Rm≥440MPa
ReL≥340MPa
A≥22%
KV2(J)≥27(-40℃)

Used for welding atmospheric corrosion-resistant steel structures with corresponding strength, such as locomotive vehicles, offshore engineering, bridges, etc.

SW.MG49-1

ER49-1

C≤0.11
Mn1.80~2.10
Si0.65~0.95
Cu≤0.50
Cr≤0.20
Ni≤0.30

Rm≥490MPa
ReL≥372MPa
A≥20%
KV2(J)≥47(Room Temperature)

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

SW.MG50-3

ER50-3
(ER70S-3)

C0.06~0.15
Mn0.90~1.40
Si0.45~0.75
Cu≤0.50

Rm≥500MPa
ReL≥420MPa
A≥22%
KV2(J)≥27(-18℃)

1. Used for welding low-carbon steel thin plates.2. Used for welding low-carbon steel parts with thorough surface treatment.

SW.MG50-4

ER50-4
(ER70S-4)

C0.07~0.15
Mn1.0~1.5
Si0.65~0.85
Cu≤0.50

Rm≥500MPa
ReL≥420MPa
A≥22%
KV2(J)Not Specified(-29℃)

1. Used for welding sheet metal and thin plates.2. Used for welding steel pipes.

SW.MG50-6

ER50-6
(ER70S-6)

C0.06~0.15
Mn1.4~1.85
Si0.8~1.15
Cu≤0.50

Rm≥500MPa
ReL≥420MPa
A≥22%
KV2(J)≥27(-30℃))

1. Used for welding all kinds of 500MPa structural steel parts.2.Used for welding all kinds of 500MPa plates and pipes.

SW.MG50-Ti

ER50-G
(ER70S-G)

C≤0.15
Mn1.40-1.90
Si0.55-1.10
Ti+Zr≤0.30

Rm≥500MPa
ReL≥420MPa
A≥22%
KV2(J)According to Customers’Need(-30℃)

1. Used for welding all kinds of 500MPa structural steel parts, thick plates and thick pipelines.
2. Used for high speed welding on 500MPa base metals.

SW.MG60-G

ER60-G
(ER90S-G)

C≤0.10
Mn1.40~1.80
Si0.50~0.80
Ti≤0.12

Rm≥620MPa
ReL≥490MPa
A≥19%
KV2(J)≥47(-20℃)

Suitable for welding 600MPa high strength steel structures, such as construction machinery, pipelines, ships, pressure vessels, etc.

SW.MG60-Mo

ER60-G
(ER90S-G)

C≤0.10
Mn1.40~1.80
Si0.50~0.80
Ti≤0.12

Rm≥620MPa
ReL≥490MPa
A≥19%
KV2(J)≥47(-20℃)

Suitable for welding 600MPa high strength steel structures, such as construction machinery, etc.

SW.MG70-G

ER70-G
(ER100S-G)

C≤0.10
Mn1.40~1.80
Si0.50~0.80
Ti≤0.10

Rm≥690MPa
ReL≥610MPa
A≥16%
KV2(J)≥27(-20℃)

Suitable for welding 700MPa high strength steel structures, such as construction machinery, hoisting machinery, bridges, pipelines, ships, pressure vessels, etc.

SW.MG80-G

ER80-G
(ER110S-G)

C≤0.10
Mn1.40~1.80
Si0.50~0.80
Ti≤0.10

Rm≥690MPa
ReL≥610MPa
A≥16%
KV2(J)≥27(-20℃)

Suitable for welding high strength structures with tensile strength of 790MPa. It can be used for welding some key structures, such as pressure vessels, construction machinery, hoisting machinery, ships, mining machinery, etc.

SW.TH550-NQ-Ⅱ

ER55-G

C≤0.10
Mn1.20~1.60
Si≤0.60
Cr0.30~0.90

Rm≥550MPa
ReL≥450MPa
A≥22%
KV2(J)≥60(-40℃)

SW.YD212-1

C0.30~0.60
Mo≤4.00
Cr≤5.00

Suitable for the situation of impact-resistance and medium wear. Used for single layer or multi-layer surfacing welding and repairing of the surfaces of all kinds of worn-out parts, such as gears, dredge buckets, mining machinery, etc.