Welding, Cutting & Safety Solutions

Weld Star – A30 (ER 70S-A1) TIG Wire (2.4mm) 5kg


£56.25 ex VAT £67.50 inc VAT

Product Model:
In Stock

  • Highly resistant to cold cracking for a stronger weld deposit
  • Designed for low alloy creep-resistant steels in high stress environments
  • Recommended for working temperatures up to 500°C
  • Produced using virgin raw materials for consistent reliability and quality
  • Applies to a wide variety of industries, such as shipbuilding and petrochemicals
  • Meets stringent EN ISO636-A and AWS A5 28 standards for superior performance
  • Description

    Weld Star – A30 (ER 70S-A1) TIG Wire (2.4mm) 5kg

    Features and Applications

    A copper-coated heat-resisting wire containing 0.5% molybdenum.

    Designed for welding low alloy creep-resistant steels that require a high tensile strength. The weld deposit is highly resistant to cold cracking. It is recommended for working temperatures of up to 500 degrees Celsius.

    Typically used on creep steels for construction of steam boilers, pressure tanks, gas pipes, shipbuilding sector, petrochemical industry, heat exchangers, building of cranes, bridges, etc.

    The green wire is produced using virgin raw materials sourced from specialized steel mills, which ensures consistent reliability and quality.

    Typical Base Materials

    P295GH, P355GH, 16Mo3, 17Mo3, 14Mo6, S275, S355, S420, A210, A285, A335, A516, S275Ml, S355M, S420M, S460 15Mo3, 10MnMo45, 11MnMo45, GS60, GS22Mo4, 20MnMoNi5-5, 15NiCuMoNd5S, 17MnMoV64*

    * Illustrative, not exhaustive list

    EN ISO636-A – W 2Mo
    AWS A5 28 – ER 70S-A1
    Chemical Composition % (Typical)
    0 090 601 20<0 015<0 015<0 25
    <0 15<0 100 50<0 030<0 020<0 050
    Mechanical Properties (Typical)
    Tensile Strength610 MPa
    Yield Strength520 MPa
    Impact Strength150 J>47 J
    Test Temperature+20 degC-40 degC

    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 60 mm
    2 40 mm
    3 20 mm
    1000 mm
    1000 mm
    1000 mm
    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

    A carriage charge is applied to orders, for standard 1-2 day shipments to mainland destinations within the United Kingdom. Other destinations and premium services are available but subject to additional freight charges.


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