Type

Model

Chemical composition

Usage

THM-43

H08A
(EL12)

C≤0.10
Si≤0.03
Mn0.30-0.60

For welding low carbon steel and some low-alloy steel(16Mn) structures with flux HJ430,HJ431,HJ433.

THM-43A

H08MnA
(EM12)

C≤0.10
Si≤0.07
Mn0.80-1.10

For welding low carbon steel and low-alloy steel(16Mn) structures with flux HJ430,HJ431,HJ433.

THM-43B

H10Mn2
(EH14)

C≤0.12
Si≤0.07
Mn1.50-1.90

For welding low carbon steel or 50kg.f/mm2 high-strength steel structures like boat,heavy-machines,pressure container and bridges.

THM-43C

H10MnSi

C≤0.14
Si0.60-0.90
Mn0.80-1.10

For welding important low carbon steel and low-alloy steel structures.

THM-08Mn2SiA

H08Mn2SiA

C≤0.11
Si0.65-0.95
Mn1.80-2.10

For welding 50kg.f/mm2 high-strength steel structures like boat, heavy-machines, pressure container and bridges.