MT SG3

General Descriptionmt sg3

MT SG3 is a copper coated gas metal arc welding wire in 15 kg spools or 250 kg drums. It is particularly designed for semi-automatic and full-automatic GMAW applications.
MT SG3 is suitable for GMA welding of un-alloyed structural steels with a tensile strength up to 540 N/mm², ship plates and fine-grained C-Mn steels. It gives high-strength weld metal at working temperatures varying between –50 and 450°C. It contains higher Si and Mn than MT SG2 welding wire. Increased silicon improves wettability.
100% CO2 or 80% Ar + 20% CO2 are used for gas shielding.

 

Classification and Chemical Composition (w%), Typical, Wire / Weld Metal
EN ISO 14341-A : G42 3CM G4Si1
AWS A5.18 : ER70S-6
C                 Si               Mn
0,08            1,00           1,70
0,06 (*)      0,60 (*)       1,20 (*)
(*) Weld Metal Composition, Typical (CO2 shielding gas)

 

Mechanical Properties, Typical, All Weld Metal
Yield Strength : 470 (N/mm²)
Tensile Strength : 570 (N/mm²)
Elongation (L=5d) : 25 (%)
Impact ISO-V : 60 (Joule) (–30°C)

 

Approvals ve Certificates
Certificates
CE TÜV GOST SEPRO

Shielding Gases (acc. ISO 14175 and EN 439)
C1 : 100% CO2
M21 : Ar + 15-25% CO2

 

Materials to be Welded
MT SG3 is suitable for GMA welding of un-alloyed structural steels with a tensile strength up to 570 N/mm², ship plates and fine-grained C-Mn steels. It gives high-strength weld metal at working temperatures varying between –50 and 450°C.
General Structural Steels :
DIN: St 44, St 44-2, St 44-3, St 52, St 52-3
EN: S275, S355
DIN: St 37-4, St 44-4, St 52-4
EN: P235TR2 - P355T2
DIN: St 50-2, St 60-2, St 70-2
EN: E295, E335, E360
DIN: C 10 - C 35 ; Ck 10 - Ck 35
EN: C10 - C35

Fine Grained Steels :
DIN: StE 255 - StE 420
EN: S255N - S420N
DIN: WStE 255 - WStE 355
EN: P255NH - P355NH

Elevated Temperature Steels :
DIN: St 35-8, St 45-8
EN: P235G1TH - P255G1TH

Boiler & Pressure Vessel Steels :
DIN: HI, HII
EN: P235GH, P265GH
DIN: 17 Mn 4, 19 Mn 6
EN: P295GH, P355GH

Ship Plates :
DIN: A, B, C, D, E
DIN: AH32 - EH36

Cast Steels :
DIN: GS-38, GS-45, GS-52
EN: GE200, GE240, GE260

Pipe Materials :
DIN: StE 210-7 - StE 415-7
EN: L210 - L415NB
DIN: X42, X46, X52, X60 (API 5LX)

 

Welding Parameters, Available Sizes and Packaging
Current Type and Polarity : DC (+)

Arc
Type
Diameter
(mm)
Current
(A)
Voltage
(V)
Spool / Drum Weight
(kg)
Short Arc 1.0 80 - 175 18 - 28 15 / 250
Short Arc 1.2 120 - 200 18 - 30 15 / 250
Short Arc 1.6 225 - 480 28 - 40 15 / 250

 

 

Welding Positions

welding wire welding position mt sg2

 

Akat Mah. Zeytinoglu Cad. Selçuklar Sk. Eti
Apt. B Blok No: 12 D:2
34335 Beşiktaş Istanbul/Türkiye

Phone: +90 212 28 28 100
Fax:      +90 212 28 26 200

info@mega-tel.com
chemicals@mega-tel.com

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