1.2mm A18 TIG Filler Weld Star Pack 5Kg

1.2mm A18 TIG Filler Weld Star Pack 5Kg

Stock Code: FAW00002796
Manufacturer Part No: 3010300155
£30.00 (exc VAT) per Pack
Quantity: - +

Structural & General Engineering Applications

Weld Star A18 is a high-quality copper-coated TIG wire engineered with elevated levels of manganese and silicon. These additions enhance deoxidising performance and improve weldability on surfaces with residual scale or rust, where pre-cleaning is limited.

The high silicon content promotes a fluid weld pool, resulting in smooth bead appearance with minimal post-weld cleanup. Weld Star A18 also offers excellent mechanical strength and impact resistance at sub-zero temperatures.

Manufactured from virgin green wire for consistent weld quality and process reliability.

Key Features

  • High Mn and Si content for enhanced deoxidation and weld fluidity
  • Excellent weld bead appearance with minimal spatter
  • Good mechanical properties at temperatures down to -40°C
  • Ideal for structural and heavy fabrication work
  • Virgin raw materials for reliable wire quality and feedability

Typical Applications

  • Boilers and pressure vessels
  • Automotive and rail industry components
  • Structural and civil engineering
  • Heavy machinery and bridge fabrication
  • Shipbuilding and offshore fabrication

Suitable Base Materials Include

  • 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

Standards

  • EN ISO 636-A – W 42 4 3Si1
  • AWS A5.18 – ER70S-6

Chemical Composition % (Typical)

Element

%

C

0.07

Si

0.85

Mn

1.45

P

<0.020

S

<0.020

Cu

<0.25

Cr

<0.15

Ni

<0.15

Mo

<0.050

Al

0.200

V

<0.030

Zr+Ti

<0.15

Mechanical Properties (Typical)

  • Tensile Strength: 550 MPa
  • Yield Strength: 450 MPa
  • Elongation: >24%
  • Impact Strength: >80 J
  • Test Temperature: -40°C

Mechanical properties are approximate and may vary depending on shielding gas, welding parameters, and base material.

Shielding Gas

  • EN ISO 14175 – TIG: I1 (Argon)

Welding Positions

  • EN ISO 6947 – PA, PB, PC, PD, PE, PF
  • PF
Diameter1.2
Wire ClassificationA18: Mild steel to mild steel Cu-coated wire
BrandWeld Star
Weight5Kg

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