Technical data sheetEN

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MIG/MAG welding wire for low alloy steels

MIG/MAGER80S-G · G MoSi

Description

It is a low alloyed MIG/MAG wire, used for welding creep resistant 0.5% Mo steels and fine grained steels. It gives a weld metal that is used in operating temperatures between −40 °C and 500 °C. It is used in the welding of steel construction applications, boiler and pressure vessels, gas pipes and turbine rotors.

Industry: Ship building, heavy machinery, petro-chemical, power generation, metal fabrication industry.

Classification

  • AWS A5.28: ER80S-G
  • EN ISO 14341-A: G 45 2 M21 0 / G 46 2 M21 Z
  • EN ISO 21952-A: G MoSi

Coating type

  • Copper coated
  • Bronze coated
  • Copper free

Approvals

  • CE

Shielding gases

  • M21: Ar + 15–25% CO₂
  • C1: 100% CO₂

Diameters

  • 0.80mm · .030 in
  • 0.90mm · .035 in
  • 1.00mm · .039 in
  • 1.20mm · .045 in
  • 1.60mm · .062 in

Packaging

⌀ mm0.600.800.901.001.201.60
Spool–✓✓✓✓✓
Drum–✓✓✓✓✓

Spool weight: 15 kg – 16 kg – 18 kgDrum weight: 250 kg – 300 kg – 450 kg

Welding positions

  • PAflat
  • PBhorizontal-vertical
  • PChorizontal
  • PEoverhead
  • PFvertical up
  • PGvertical down

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MIG/MAG welding wire for low alloy steels

Chemical analysis of the wire [%]

CMnSiCrMoCu
Value0.091.20.65< 0.150.5< 0.25

Mechanical properties of the weld metal

Gas M21
Yield strength Re530 MPa
Tensile strength Rm640 MPa
Elongation A526%
Impact test KV (−20 °C)90 J
Impact test KV (+20 °C)150 J

Materials to be welded

Fine grained steels
DIN: StE 255 – StE 460EN: S255N – S460NDIN: WStE 255 – WStE 460EN: P255NH – P460NHEN: S275ML; S355M – S420M
Pipe materials
DIN: StE 320.7 – StE 415.7EN: L320 – L415NBDIN: StE 360.7 TM – StE 480.7 TMEN: L360MB – L485MBDIN: X52, X56, X60, X65 (API 5LX)
Boiler & pressure vessel steels
DIN: 15Mo3, 17Mn4, 19Mn6EN: 16Mo3, P295GH, P310GHDIN: 22Mo4, 20MnMoNi55
Elevated temperature steels
DIN: St 35.8 – St 45.8EN: P235G1TH – P255G1TH
Cast steels
DIN: GS-45, GS-52, GS-60EN: GE240, GE260, GE300EN: G20Mo5
Creep resistant steels
DIN: 17MnMoV6-4, 15NiCuMoNb5EN: 20MnMoNi4-5