Flux-cored wire TMW4 (TM.WELTEC). ТУУ 28.7-31749248-008:2004

TMW4

TUU 28.7-31749248-008-2004

EN ISO 17632-A: T 42 2 R NO 3
EN ISO 17632-B: T 49 2 T5 0 NO

Welding process: G – in shielding gas	Wire diameter, mm	Recommended shielding gases and fluxes
G	1,2-2,4	С1 (100% СО₂)

General characteristics

Gas-shielding (G) flux-cored wire for mechanized arc welding, surfacing and filling-up patching of defects in metal structure castings made of low-carbon and low alloyed steels.

Application

It is used at welding of building metal structures, technological vessels and pipelines, parts and components of agricultural machinery, as well as for surfacing of mining equipment and parts of railroad cars etc.

Weld Positions

Ø 1,2-1,8 мм:

Ø 2,0-2,2 мм:

Ø 2,4-2,6 мм:

Welding technology

The welding is performed at reverse polarity of welding current- DC(+).

Welding and technological properties

The formation of the weld bead	satisfactory
Separation of the slag crust	good
Stability of arc burning	good
Sectional shape and appearance of the seam	satisfactory
Resistance to cracking and pore formation	high
Wind Resistance	high
Deposition rate, kg/h	1,5–8,0
Wire consumption per 1 kg of deposited metal, kg	1,1–1,25

Deposit composition (Weld metal), %

C	Si	Mn	S	P
0.1	0.2	1.2	≤0.03	≤0.03

Welding Alloys Analog

Brand of the wire	Distance, %	virobnik	C	Mn	Si	Mo
ROBOFIL R 71+ (52)	0.21	Welding Alloys	0.04	1.2	0.4
ROBOFIL B 71 (56)	0.29	Welding Alloys	0.06	1.4	0.4
ROBOFIL KX71T1+ (53)	0.32	Welding Alloys	0.05	1.3	0.5
ROBOFIL M 71 (55)	0.36	Welding Alloys	0.07	1.4	0.5
ROBOFIL M Mo (70)	0.54	Welding Alloys	0.06	1.2	0.4	0.5

Typical mechanical properties of the weld metal

Ultimate tensile strength, MPa	Yield Strength, MPa	Elongation (l = 5×d), %	Impact strength, KCV, J/cm² at T °C
minimum			+20°		-20°
510	400	20	≥80	-	≥35

Modes of the welding process

Wire diameter, mm	Welding process:	Current, A	Voltage, V	Surfacing rate, m/h	Wire overhang, mm mm	Gas consumption l/min
1,2	G	150 – 300	20 – 30	8 - 13	15 - 20	6 - 12
1,6	G	180 – 350	22 – 31	10 - 15	15 - 25	8 - 14
2,0	G	200 - 400	24 – 32	12 - 18	15 - 25	8 - 16
2,4	G	240 - 450	25 – 33	15 - 20	20 - 35	10 - 18

Delivery type (More)

Wire diameter, mm	Cardboard barrel			Molded skeins of frameless type		Frame drum (B)	Coil (S), (BS)
	Cardboard barrel			Hank in the corrugation box	Metallic barrel	Frame drum (B)	Coil (S), (BS)
	To 100 kg	To 150 kg	To 300 kg	To 30 kg	To 70 kg	To 25 kg	To 15 kg
1.2	X	X	X	X	X	X	X
1.6	X	X	X	X	X	X	X
2.0	X	X	X	X	X	X	X
2.4	X	X	X	X	X	X	X

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