Hardbanding, as a method for protecting drill pipe tool joints from premature abrasive wear, has been in wide spread use since the late 1930’s. Tungsten Carbide has traditionally been embedded into the overlay to further extend tool joint wear life. In open-hole conditions where casing wear is not a concern, Tungsten Carbide embedded in a tough, wear resistant matrix still provides the maximum wear resistance for tool joints.
POSTALLOY© ULTRABAND NM
Ultraband™NM is a hard, 100% crack free Hardband designed for non-mag drill collars and related components. Control of critical elements has resulted in a hardband alloy that meets magnetic permeability specifications and offers substantially improved wear resistance compared to conventional non-mag welding alloys, like 310 stainless – a 400% to 500% improvement. In addition, the abrasion resistance of Ultraband™NM is 400% to 500% better than drill collar base materials.
POSTALLOY© TUFFBAND© NC
Postalloy© Tuffband© NC is a high hardness hardbanding wire that may be used by itself for casing friendly hardband applications or used as a weld matrix with Tungsten Carbide (WC) when casing protection is not a factor.
POSTALLOY© DURABAND© NC
Postalloy© Duraband© NC is a 100% crack-free hardbanding wire that provides maximum protection of the tool joint and casing. It’s microstructure consists of a hard, but tough tool steel matrix with a high volume of tightly packed micro-constituents. This combination ensures excellent wear resistance in open hole drilling as well as being casing friendly. Duraband© NC is unique. It is *Fearnley Procter NS-1TM Certified for new applications and it is the only product to be certified for re-application over itself and certain other products. It is the only product for maximum protection that is applied crack-free.
DYNALLOY PROLONG 750CU
Prolong 750CU is a premium mild steel solid wire formulated to provide high quality welds and trouble-free performance from heavy duty, high-speed, spray transfer applications all the way to light duty low-speed, short-arc applications. Prolong 750CU is designed for use with various gas mixtures such as 100% CO2, 75/25 Ar/CO2 or 98/2 Ar/O2. Even in the most difficult applications, Prolong 750CU produces a smooth stable are with low spatter, producing a weld bead that ties in evenly with the sides and has a smooth finished appearance.