Hardfacing

Techman offer a complete range of Hardfacings to suit all drilling conditions. Experience in the North Sea has assisted us to develop improvements on wear characteristics and matrix hardness.

HF 1000
Crushed tungsten carbide held in a nickel bronze matrix. The 3mm grain size ensures greater concentration of carbide which is ideal for soft formation drilling.

HF 2000
Trapezoidal tungsten carbide inserts held in a sintered carbide nickel bronze matrix. This will give a greater depth of carbide coverage - ideal for high deviation drilling in abrasive formations.

HF 3000
Tungsten carbide inserts set in a powder spray deposit ideal for abrasive formations. 97% bonding guaranteed, certified by ultrasonic report. Recommended for non-magnetic stabilizers

HF 4000
Tungsten carbide inserts (button type). The inserts have been developed to allow cold insertion and maintain close fit. A greater concentration of inserts on the bottom third of the blade and leading edge will increase surface contact to reduce wear in highly abrasive formations.

HF 5000
This oxy-acetylene process applies tough molten carbide particles of varying sizes held in a nickel chrome matrix which provides excellent bonding properties and greater surface wear characteristics. Surface hardness levels over 40HRC. Ideal for GEO-THERMAL applications over 350°C.

HF 7000
HF7000 Laser hardfacing produces impervious overlays tailored for specific wear applications in corrosive or non-corrosive environments. The metallurgical bond between the overlay and the part provides high resistance against interface corrosion and high bond strength. The low-heat input of the laser-process allows for the deposition of crack-free overlays for wear protection.