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Type

Model

Chemical composition

Mechanical prosperities

Usage

THY-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.

THY-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.

THY-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.

THY-58

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.

THY-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.

THY-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.

THY-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.

THY-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