The system divides the filler metals into eight classes. The class to which a filler metal is assigned is based in most cases on the major element present but in some instances, it has been decided by the similarity ofthe filler metal to others in the same class.
The eight classes are as follows.
1) al: filler metals containing aluminium as the major element.
2) ag: filler metals containing silver as a significant addition, even ifnot the major element.
3) cp: filler metals containing copper as the major element with an addition ofphosphorus.
4) cu: filler metals containing copper as the major element, not elsewhere classified.
5) ni: filler metals containing nickel as the major element.
6) co: filler metals containing cobalt as the major element.
7) pd: filler metals containing palladium, in any amount.
8) au: filler metals containing gold, in any amount.
The code for each flller metal consists ofthe two letters for the class followed by three digits, allocated sequentially, starting at 101. Some classes have been sub-divided, with the digits starting at 101 for the first sub-division, 201 forthe second, etc.
1
Type model
Gb chemical composition(%)mechanical properties
Cmnsispotherr el /r p 0.2 mpar m
Mpaa
%a kv
421e43130.100.32/0.550.300.0350.04-330420170 íp c
Th422e43030.100.32/0.550.250.0350.040-330420220 íp c
Th422gme43030.100.32/0.550.250.0350.040-330420220 íp c
Th423e43010.100.32/0.550.300.0350.040-33042022-20 íp c
Th426e43160.101.250.900.0350.040-33042022-30 íp c
Th502e50030.100.50/1.250.300.0350.040-400490200 íp c
Th506e50160.101.600.750.0350.040-40049022-30 íp c
Th506de50160.101.600.750.0350.040-40049022-30 íp c
Th506fee50180.101.600.750.0350.040-40049022-30 íp c
Th507e50150.101.600.750.0350.040-40049022-30 íp c
Typemodel gb(aws)usage
421e4313for welding low carbon steel light-gauge sheet structures .
Th422e4303for welding key structures of low carbon steel as well as low-alloy steel with same strength.
Th422gme4303suitable for cosmetic welding of key structures of low carbon steel ad low-alloy steel
Th423e4301for welding low carbon steel structures.
Th426e4316for welding key structures of low carbon steel and low-alloy steel with same strength
Th502e5003for welding general structures of 16mn and low-alloy steel with same strength
Th506e5016for welding medium carbon steel structures and some key structures of low-alloy steel like 16mn and etc.
Th506de5016for kacking welding and back sealing weiding is not necessary.
Th506fee5018high efficient welding electrodes for welding low-alloy steel structures.
Th507e5015suitable for welding key structures for medium carbon steel and 16mn low-alloy steel structures.
Typetypemodelabsbvccsdnvgllrnkkr
Carbon steel weldingj421e4313222222mkmw2
Thj422e4303333333mkmw3rmw3
Thj506e43033yh103yhh3yh103yh103yh103ymh15kmw53hhrmw53hh
Thj507e50153yh103yhh3yh103yh103yh103ymh15kmw53hhrmw53hh
Thj506fee50183yh103yhh3yh103yh103yh103ymh15kmw53hh
Thj501fe15e50242y
Thj501fe18
Flux cored welding wirethy 55e500t 53ysah10sa3yhh3ys h10iii yms ( h10 )3yh10s3ysh10
Thy 51be501t 13ysah10sa3yhh3ys h10iii yms (h10)3yh10s3ysh10ksw53g (c)h10
Co2welding wirethq 50cer50 63ysa h10sa3ymhh3ys h103ys h103yh10s3ysh15ksw53g (c) h10
Submerged welding wirethm 43h08a3tm
Thm 43ah08mna3tm
Soldersj101f4a4 h08mna3tm
F5a4 h10mna
Sj301f4a2 h08mna3tm
Stainless steel welding tha022e316l 16as 1 b
Tha102e30 8 16a s2 a
Tha302e30 9 16as 2 a
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)
The flux-cored welding wire is intended to inert-gas shielded fusion welding of titanium and its alloys and includes a metal coating or tubular casting of titanium or its alloys and a powder flux core containing (per cent by weight):
Baf2 -- 5 to 10,
Fluoride of a rare-earth element -- 18 to 20,
Caf2 -- 40 to 50,
Srf2 -- the rest,
The ratio of the weight content of the powder flux to the total weight content of titanium in the wire being from 0.3: 1 to 1: 1.