Weld Star – A33|ER 90S-B3 TIG Wire (2.4mm) 5kg


SKU: 3010300369 Category: Tag: Brand:

Product Description

Features and Applications

Low alloy copper coated wire with 2.25% Cr and 1% Mo content used for the welding of heat-resistant steels.

Produces quality welds on pressure piping or boiler work.

Designed to sustain elevated temperatures within demanding work environments.

Recommended working temperatures of up to 600°C.

Typical applications include pressure piping in steam power generating plants, boiler and heat exchanger tubes, chemical and petrochemical processing equipment 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

Technical Specifications

Typical Base Materials

10CrMo9-10, GS 17CrMoV5 11, 10CrSiMoV7, 12CrSiMo8, GS12CrMo9 10, 10CrSiMoV7, 10Cr V63, 12CrSiMo8*
* Illustrative, not exhaustive list


EN ISO 21952-B – 2C1M
AWS A5.28 – ER 90S-B3


Chemical Composition % (Typical)
C% Si% Mn% P% S% Cu%
0.08 0.50 0.60 <0.012 <0.015 <0.25
Cr% Ni% Mo% Al% V% Fx ppm
2.40 <0.20 1.00 <0.020 <0.010 <15


Mechanical Properties (Typical)
Tensile Strength 640 MPa
Yield Strength 540 MPa
Elongation 22%
Impact Strength 90 J
Test Temperature -10ºC

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
Length Weight
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.



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