Type

Model

Chemical composition

Mechanical prosperities

Usage

SW-28

E501T-8
(E71T-8)

C≤0.09
Mn≤1.41
Si≤0.16
Al≤10.63

Rm≥581MPa
Rel≥515MPa
A≥29%
AKv≥69J(-30℃)

For welding structures like boat,bridge,platform and other out-door welding and repairing.

SW-29

E501T8-K6
(E71T8-K6)

C≤0.15
Mn0.50～1.50
Si≤0.80
Al≤1.8
Ni0.40～1.10

Rm490~620MPa
Rel≥400MPa
A≥20%
KV2(J)≥27(-30℃)

JC-29 is especially suitable for site welding on API X52 to X65 oil and gas pipelines highly requiring low temperature toughness.

SW-29Ni1

E501T8-Ni1
(E71T8-Ni1)

C≤0.12
Mn≤1.50
Si≤0.80
Al≤1.8
Ni0.40～1.10

Rm490~620MPa
Rel≥400MPa
A≥20%
KV2(J)≥27(-30℃)

Used for making welds requiring high toughness and needing nickel. Especially suitable for site welding on API X52 to X70 oil and gas pipelines highly requiring low temperature toughness. Also used for automatic and semi-automatic welding on general steel, atmospheric corrosion-resistant steel and high strength steel, such as oil and gas pipelines, ocean platforms, storage tanks, etc

SW-29Ni2

E501T8-Ni2
(E71T8-Ni2)

C≤0.12
Mn≤1.50
Si≤0.80
Al≤1.8
Ni1.75～2.75

Rm490~620MPa
Rel≥400MPa
A≥20%
KV2(J)≥27(-30℃)

Used for making welds requiring high toughness and needing nickel. Especially suitable for site welding on API X65 to X70 oil and gas pipelines highly requiring low temperature toughness. Also used for automatic and semi-automatic welding on atmospheric corrosion-resistant steel and high strength steel, such as oil and gas pipelines, ocean platforms, storage tanks, etc.

SW-29X

E501T8-K6
(E71T8-K6)

C≤0.15
Mn0.50～1.50
Si≤0.80
Al≤1.8
Ni0.40～1.10

Rm490~620MPa
Rel≥400MPa
A≥20%
KV2(J)≥27(-30℃)

JC-29X is used for site welding on general steel and high strength steel, such as high-rise buildings, blast furnaces, etc

JC-30

E81T8-Ni2

C≤0.12
Mn≤1.50
Si≤0.80
Al≤1.8
Ni1.40~2.75

Rm550-690MPa
Rel≥470MPa
A≥19%
KV2(J)≥27(-30℃)

SW-51A

E501T-1L

C≤0.05
Mn≤1.38
Si≤0.45

Rm≥573MPa
Rel≥490MPa
A≥27.4%
AKv≥128J(-40℃)

Used in shipbuilding, Bridges, buildings, vehicles, offshore platform structure and mechanical manufacturing with the carbon steel and the low alloy steel demand low temperature toughness welding structure.

SW-55

E500T-1
(E70T-5)

C≤0.07
Mn≤1.58
Si≤0.42

Rm≥531MPa
Rel≥442MPa
A≥32.3%
AKv≥132J(-30℃)

For welding carbon steel and low-alloy steel structures like boat,bridge,pressure container and machine.

SW-51B

E501T-1
(E71T-1)

C≤0.06
Mn≤1.39
Si≤0.44

Rm≥551MPa
Rel≥475MPa
A≥29%
AKv≥155J(-20℃)

For welding structures like boat,bridge.It has strong ability to prevent surface blowhole.

SW-A308LQ

E308LT1-1

C≤0.03
Mn≤1.37
Si≤0.62

Rm≥592MPa
A≥45.4%

Used for welding 00Cr19Ni10 stainless steel structure and 0Cr19NiTi working temperature below 300℃ corrosion resistant stainless steel structure.

SW-A316LQ

E316LT1-1

C≤0.036
Mn≤1.21
Si≤0.55

Rm≥573MPa
A≥38.8%

Used for welding low carbon 18%Cr-12%Ni-2%Mo stainless steel structure.

SW-A309LQ

E309LT1-1

C≤0.03
Mn≤1.28
Si≤0.61

Rm≥560MPa
Rel≥459MPa
A≥32%
AKv≥54.7J(-40℃)

Used for stainless steel and carbon steel and low alloy steel of the stainless steel clad plates, heterogeneous steel welding clad render welding.

SW-A002

E308LT0-3
(E308LY-3)

C≤0.04
Mn0.5-2.50
Si≤1.00
Cr18.1-21.0
Ni9.00-11.00

Rm≥520MPa
A≥35%

For welding structures like boat,bridge.It has strong ability to prevent surface blowhole.