Alloy Nickel 55

Technical Data Sheet


Chemical Composition Limits
Weight% C Mn Si Fe Ni
Nickel 55 0.05 0.25 0.15 43.6 55.9

Alloy Nickel 55 is used for the welding of cast iron. This filler metal is extensively employed to overlay cast iron rolls. It is also used to repair castings. The weld metal of Alloy Nickel 55 is harder than that of Alloy Nickel 99. However the machining can be accomplished by using carbide tipped tools. A preheat and interpass temperature of 350ºF (175ºC) minimum is recommended during welding, without which the weld and heat affected zones could develop cracks.

Typical Mechanical Properties

Material Ultimate Tensile Strength Offset Yield Strength 0.2 % Elongation (%)
psi MPa psi MPa
Alloy Nickel 55 89,500 620 62,000 430 35

Alloy Nickel 55 is available in TIG, MIG and SUB-ARC wire used for welding. For all stock availability contact Sales.

Return to Main Welding Page

At Aircraft Materials we specialise in the rapid turn-around of orders, with most stock items ready for shipping out the same day to anywhere in the world. For time-critical orders, such as AOGs use our AOG service desk (, the team are dedicated to processing and dispatching orders on the same day, even for cutting orders on bar and sheet products.

Our expertise in global logistics enables us to source material from anywhere in the world in a matter of days and provide fast shipping solutions to all our customers, whichever country they are in. We use a range of transport partners to ship overnight within the UK and Europe, and offer a full range of logistics solutions from priority express services to more cost-effective economy shipments all around the globe. To find out more about our services click here.

Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.