Typemodel gbchemical composition (% )coordinated flux
Cmnsispcrnicu
Thm-43
Thg-43h08a
H08e
H08c0.100.30/0.600.030.030
0.020
0.0150.030
0.020
0.0150.20
0.10
0.200.30
0.10
0.300.20sj301 sj501 and hj431 and so on
Thm-43a
Thg-43ah08mna0.100.80/1.100.070.0300.0300.0200.300.020sj101sj127sj501 and hj431 and so on
Thm-43b
Thg-43bh10mn2
H10mn2a0.12
0.171.50/1.90
1.80/2.200.07
0.050.035
0.0300.0300.0200.300.020sj101sj127sj501 and hj431 and so on
Thm-50
Thg-50h08mn2si0.111.70/2.100.65/0.950.0350.0350.0200.300.020sj101sj201sj501 and hj431 and so on
Thm-50a
Thg-50ah08mn2sia0.111.80/2.100.65/0.950.0300.0300.0200.300.020sj201sj501and hj431 and so on
Note: thg-43 thg-43a thg-50 thg-50 are the welding wire of non-copper coating(low bright, antirust treatment)

Typemodel
Gbusage
Thm-43
Thg-43h08a
H08e
H08cfor welding low carbon steel and some low-alloy steel(16mn) structures with flux hj430, hj431, hj433.
Thm-43a
Thg-43ah08mnafor welding low carbon steel and low-alloy steel(16mn) structures with flux hj430, hj431, hj230, hj330.
Thm-43b
Thg-43bh10mn2
H10mn2afor welding low carbon steel or 50kg.F/mm 2 high-strength steel structures like boat, heavy-machines, pressure container and bridges.
Thm-50
Thg-50h08mn2sifor welding 50kg.F/mm 2 high-strength steel structures or sheet.
Thm-50a
Thg-50ah08mn2siaditto
Note:thg-43 thg-43a thg-50 thg-50 are the welding wire of non-copper coating(low bright, antirust treatment)