Weld Star SG2 (G3Si1) MIG Welding Wire 15kg

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Product Overview

Manufacturer: Weld Star

  • Weld star SG2 (G3Si1) MIG welding wire is manufactured using green wire which is produced with virgin raw materials and sourced from specialised steel mills. The results are a consistent quality and reliable MIG welding wire with good welding characteristics.  

    A copper coated solid wire suitable for single pass and multipass applications.

    Suitable for the welding of unalloyed and low-alloyed carbon-manganese steels.

    Good mechanical properties at sub-zero temperatures down to -40°C.

    Vacuum-sealed plastic bag packaging to prevent moisture absorption.

    Precision layer wound for superior wire feeding characteristics

    Typically used on boilers, industrial machinery, bridges, shipbuilding, automotive, rail, structural and engineering fabrications etc.

    Supplied on high quality BS300 wire spool, when mounting on to the welding machine there are no additional adaptors required. These spools meet the present and future demanding environmental requirements.

    The BS300 spools are fitted with an innovative alignment hole clip which helps ensure smooth feeding when compared with traditional wire spools.


    EN/ISO-Standard – 14341-A AWS-Standard – A5.18

    EN/ISO-Classification – G 42 3 C1/42 4 M21 3Si1 AWS-Classification – ER70S-6

    Typical Base Materials:

    S185, S235, S275, S355 – Grade A, B, D, AH32 to DH36 – L210, L240, L290,

    L360, L240NB, L290NB, L360NB, L360QB, L240MB, L290MB, L360MB,

    L415MB – X42, X46, X52, X60 – P235T1, P235T2, P275T1 – P275T2, P355N

    – P235GH, P265GH, P295GH, P355GH – S275, S355, S420, S275M, S275ML,

    S355M, S355ML, S420M, S420ML*

    * Illustrative, not exhaustive list

    Welding Positions:

    EN ISO 6947 – PA, PB, PC, PD, PE, PF, PG

    Approximate Welding Parameters.

    ø (mm) 0.80               

    Amps   60 – 180        

    Volts    18 – 22          

    ø (mm) 1.0

    Amps   80 – 230

    Volts   20 – 28

    ø (mm) 1.2

    Amps   220 – 350

    Volts    26 – 34

    Mechanical specifications (Typical)-C1

    Tensile Strength (N/mm²) 540

    Yield strength (N/mm²)  440

    Elongation (%) 30

    Impact Strength (J) 70

    Test temperature -30ºC

    Mechanical Properties (Typical) – M21

    Tensile Strength (N/mm2) 580

    Yield Strength (N/mm2) 460

    Elongation (%) 26

    Impact Strength (J) 90

    Test Temperature -40ºC

    Mechanical properties are approximate and may vary based on the heat, shielding gas, welding parameters and other factors.

    Typical Chemical Composition %

    C – 0.07%, Si – 0.85%, Mn – 1.45%, P – <0.025%, S – <0.025%, Cu%a – <0.35%, Cr – <0.15%, Ni – <0.15%, Mo – <0.15%, Al – <0.020%, V – <0.030%, Zr+Ti – <0.15%.