Nickel is a component of the filler metal’s composition, this being present to enhance its wetting and bonding properties on tungsten carbide. It is suitable for use on carbide tips where the largest dimension does not exceed 20 mm.

Argo-braze™ 502 can be used to braze 300 series stainless steel where it offers a high degree of protection against interfacial corrosion. It can also be used on the 400 series materials, but it does not offer the same level of protection against interfacial corrosion as on the 300 series materials.

Argo-braze™ 502 will fill joint gaps of between 0.075mm and 0.20mm at brazing temperature.

Argo-braze™ 502 can be used on stainless steel, mild steel, tungsten carbide and non-ferrous alloys. It should be noted that on 400 series stainless steels freedom from interfacial corrosion cannot be guaranteed. One of its principal uses is as a filler metal for brazing tungsten carbide tools.

Information provided by Johnson Matthey Metal Joining