Weld Star - A18 (ER 70S-6) TIG Wire (1.0mm) 5kg

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Features and Applications

A copper coated wire containing high levels of manganese and silicon for stronger deoxidizing power where stringent cleaning procedures are not possible.

The high silicon content increases the fluidity of the weld pool, creating a smoother bead appearance and resulting in minimal post-weld grinding.

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

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

Green wire is produced using virgin raw materials sourced from specialised steel mills, which ensures consistent reliability and quality.

Test Certificates can be found online @wilkinsonstar247.com


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


EN ISO 636-A - W 42 4 3Si1
AWS A5.18 - ER 70S-6


Chemical Composition % (Typical)
C% Si% Mn% P% S% Cu%
0.07 0.85 1.45 <0.020 <0.020 <0.25
Cr% Ni% Mo% Al% V% Zr+Ti%
<0.15 <0.15 <0.050 0.200 <0.030 <0.15


Mechanical Properties (Typical)
Tensile Strength 550 MPa  
Yield Strength 450 MPa
Elongation >24%  
Impact Strength >80 J  
Test Temperature -40ºC  

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


Shielding Gases

EN ISO 14175 - TIG: I1 (Argon)


Welding Positions

EN ISO 6947 - PA, PB, PC, PD, PE, PF


Packaging Data



1.00 mm

1.20 mm

1.60 mm

2.40 mm

3.20 mm

1000 mm

1000 mm

1000 mm

1000 mm

1000 mm

5 Kg

5 Kg

5 Kg

5 Kg

5 Kg

Liability: Whilst all reasonable efforts have been made to ensure the accuracy of the information contained, this information is subject to change without notice and can be only considered as suitable for general guidance.