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Dynalloy

WIRE

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.

ultraband

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.

duraband1

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.

duraband1

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.

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Application

For oil and gas industry applications such as non – magnetic drill collars, stabilizers and MWD/LWD drilling tools and related components – optimized for improved wear resistance.

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.

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DYNACARB

Crushed tungsten carbide for your hardfacing applications

TUNGSTEN CARBIDE PELLETS

Dynalloy Tungsten Carbide Pellets increase the wear life of your hardfacing deposits. They are spherical in shape and have no thin edges or points to wear away which makes their application in the drilling industry "casing friendly."

Specification

RECOMMENDED WELDING PARAMETERS:

Diameter 1/16” (1.6mm)
Polarity Electrode Positive
Voltage 30(28 to 32)
Current 240(230 – 290)
Shielding Gas 98% Argon/2% Oxygen
Flow 35 CFH(32 to 37)
Stick-Out .75” – 1”
Offset .1”
Preheat Room Temp. – 100F min. required
Interpass 400F Max.
Post Welding Slow Cool to Room Temp

PACKAGING

25 lb. Spools are the standard packaging for Ultraband NM. Other packaging available upon request. Please call for more information.

Download spec sheet

Application

Hardbanding deposits are NON CRACKING, providing proper preheat, interpass and cooling temperature procedures are followed. The microstructure consists of a hard, but tough tool steel matrix with approximately 55Rc hardness. Deposits are extremely CASING FRIENDLY. Tuffband® NC can be applied over itself without removal, but only if the surface has been properly cleaned and inspected. Tuffband® NC can be applied over certain previously hardbanded competitive products providing that the worn deposit is 1/32” thick or less.

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DYNACARB

Crushed tungsten carbide for your hardfacing applications

TUNGSTEN CARBIDE PELLETS

Dynalloy Tungsten Carbide Pellets increase the wear life of your hardfacing deposits. They are spherical in shape and have no thin edges or points to wear away which makes their application in the drilling industry "casing friendly."

Specification

RECOMMENDED WELDING PARAMETERS:

Diameter 1/16” (1.6mm)
Polarity Reverse (DCEP)
Voltage 26 – 34
Amperage 250 – 350
Shielding Gas 98% Argon/2% Oxygen
Flow 35 CFH
Stick-Out .75” – 1.5”
Preheat 350/450F
Interpass 700F
Post Welding Slow Cool to Room Temp

PACKAGING

50 lb. Spools are the standard packaging for Tuffband NC. Other packaging available upon request. Please call for more information.

Download spec sheet

Application

DURABAND® NC 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. Typical hardness values of 57-60Rc can be expected when applied to new tools or properly rebuilt joints. Deposits are smooth and free of any slag. DURABAND® be applied over itself and over TUFFBAND® NC without removal, but only if the surface has been properly cleaned and inspected. Duraband NC can be applied over some competitive hardband products without removal.

YOU MIGHT ALSO NEED...

DYNACARB

Crushed tungsten carbide for your hardfacing applications

TUNGSTEN CARBIDE PELLETS

Dynalloy Tungsten Carbide Pellets increase the wear life of your hardfacing deposits. They are spherical in shape and have no thin edges or points to wear away which makes their application in the drilling industry "casing friendly."

Specification

RECOMMENDED WELDING PARAMETERS:

Diameter 1/16” (1.6mm)
Polarity Reverse (DCEP)
Voltage 26 – 33
Amperage 250 – 350
Shielding Gas 98% Argon/2% Oxygen
Flow 30 – 35 CFH
Stick-Out .75” – 1“ – 1.5”
Preheat 350/450F
Interpass 700F
Post Welding Slow Cool to Room Temp

PACKAGING

50 lb. Spools are the standard packaging for Duraband NC. Other packaging available upon request. Please call for more information.

Download spec sheet

Application

Frame fabrications, automotive structures, farm implements, construction equipment, pressure vessels, pipe fabrication, rail car construction and repair, general fabrication. Widely used in high-speed robotic and automotic welding applications and semi-automatic applications.

YOU MIGHT ALSO NEED...

DYNACARB

Crushed tungsten carbide for your hardfacing applications

TUNGSTEN CARBIDE PELLETS

Dynalloy Tungsten Carbide Pellets increase the wear life of your hardfacing deposits. They are spherical in shape and have no thin edges or points to wear away which makes their application in the drilling industry "casing friendly."

Specification

PHYSICAL PROPERTIES

Density Ibs/cu in 0.283

TYPICAL MECHANICAL PROPERTIES AS WELDED (GMAW)

Shielding Gas CO2 75%Ar/25%CO2 98%Ar/2%O2
Tensile Strength (psi) 80 – 85,000 85 – 90,000 85 – 90,000
Yield Strength (psi) 65 – 70,000 70 – 75,000 70 – 75,000
Elongation % in 2” 28.5% 28% 28%
Redcution of area 55 – 70% 55 – 70% 55 – 70%
Charpy V-notch ft. Ibs. 20 – 30 25 – 35 30 – 40

RECOMMENDED WELDING PARAMETERS

MIG Welding DC Reverse Polarity

Voltage 23 – 27 for .023”
24 – 28 for .030” and .035”
24 – 30 for .045”
24 – 32 for 1/16”
24 – 33 for 3/32”
Amperage 85 – 170 for .023”
135 – 230 for .030”
165 – 300 for .035”
200 – 375 for .045”
275 – 500 for 1/16”
300 – 600 for 3/32”
Argon/1-5% Oxygen 25 for .023” and .030”
30 for .035”
30 – 35 for .045”
40 for 1/16”
50 for 3/32”
Wire Feed ipm 360 – 620 for .023”
390 – 670 for .030”
360 – 520 for .035”
210 – 390 for .045
150 – 360 for 1/16”
75 – 125 for 3/32”

T.I.G. Welding 2% Thoriated Tungsten Electrode negative

Tungsten Diameter 1/16“ for 1/16” and 3/32”
3/32“ for 1/8” and 3/16”
1/8“ for 1/4”, 3/8”, and 1/2”
Filler Wire Size 1/16“ for 1/16”, 3/32”, and 1/8”
3/32“ for 3/32”
1/8“ for 1/4”, 3/8“, and 1/2”
Amperage 100 – 140 for 1/16”
100 – 160 for 3/32”
125 – 200 for 1/8”
150 – 250 for 3/16“ and 1/4”
150 – 275 for 3/8”
150 – 300 for 1/2”
Gas Cup 3/8 for 1/16“ and 3/32”
7/16 for 1/8“ and 3/16”
1/2 for 1/4“, 3/8”, and 1/2“
Argon(CFH) 20 for 1/16“, 3/32”, and 1/8“
25 for 3/16”, 1/4“, 3/8”, and 1/2“

nominal composition

C……………0.06-0.15 Fe……………..Balance
Si……0.80-1.15 max. Mn…………0.90-1.40
Ni…………..0.15 max. P………….0.025 max.
Mo…………0.15 max. V……………0.30 max.
Co………….0.50 max. Others…….0.50 max.
S………….0.035 max.
Cr……………0.15max.
Download spec sheet

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