DURABAND® NC for Maximum Wear Protection In All Drilling Conditions
Ultraband® NM Ultraband® NM U.S. Pat. No. 9,724,786 B2 Postalloy® Ultraband® NM is a hard, 100% crack free Hardband designed for non-mag drill collars and related components. Why is Ultraband NM better than conventional non-magnetic alloys? Control of critical elements has resulted in a hardband alloy that meets magnetic permeability specifications and offers a 400% to 500% improvement in wear resistance compared to non-mag welding alloys such as 310 stainless and conventional drill collar base materials. Advantages of Ultraband® NM include:
Able to use on non-mag base materials such as P530, AG17, 15-15LC, NMS-100 and others. Meets all requirements of API Specification 7 with a relative permeability of less than 1.01. Tests are carried out per ASTM A342 Method 3. It can be applied in multiple layers without spalling providing the interpass temperatures are properly controlled. Non-Cracking with a hardness of 40 Rc.

Ultraband NM is optimized for improved wear resistance in oil and gas industry applications such as non–magnetic drill collars, stabilizers and MWD/LWD drilling tools and related components. Ultraband NM can be applied directly on to non-mag tools and over previous layers of 310 stainless. Used by itself, Ultraband NM provides excellent wear resistance.

For additional wear protection. a non-magnetic “cast tungsten carbide” may be dropped into the weld. Recommended size is 20-30 or 30-40 mesh at a drop rate of approximately 40 grams per minute. Deposits are smooth and free of any slag. Re-application is easy providing the worn deposit is clean and free of defects. Please contact our Engineering Department for complete procedures.

For technical details please see the Ultraband™ NM Data Sheet or contact your Local Technical Center.

Progress through innovation
Duraband® NC Hardbanding
New Application to Tool Joints
Duraband® NC Hardbanding
Re-application to Tool Joints