Unique Nanotechnology Cored Wire
Nanoalloy 395 N
WIRE • Unique sub-microstructure with nano-like properties for enhanced anti-wear • Superior single-pass wear resistance • Outstanding hardness in one pass of 68 HRC with low dilution Second-pass hardness up to 71 HRC • High resistance to ultra-fine particle abrasion while maintaining toughness • Maintains hardness at high temperatures up to 1400°F (760°C) • Lasts significantly longer than most chrome carbide and complex carbide alloys
Abrasion Resistance ASTM G-65
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Relative Mass Loss
• A cost-effective alloy when compared to tungsten carbide welding wires
PROCEDURE AND TECHNIQUE:
Nanoalloy 395 N is the newest development in cored wire technology. A new generation of wearfacing products based on the science and engineering of ultra-fine, submicron grain structures. Weld deposits have a high volume fraction of ultra-hard borocarbides distributed in a mesomorphous* iron-alloy matrix. A transformation phase relating to, or existing in, a state of matter typically intermediate between a liquid and a crystal phase i.e. not fully crystalline or fully amorphous.
Power-Source Type: Nanoalloy 395 N is compatible with most conventional constant voltage/constant potential (CC/CV) power sources, including programmable & pulsedarc units. Note: Integrated wire feeders should be set up with a 4-roll, knurled-drive wire system, and the gun cable liner, with either a Teflon® or polyamide liner to reduce wire drag.
Nanoalloy 395 N weld deposits present a crystalline microstructure with nano-size crystals and high hardness carbides evenly spread throughout the matrix. The most important characteristic of 395 N is that it provides high hardness within a ductile matrix resistant to moderate impact.
TECHNICAL DATA: Operating Conditions: Current Type:..............................................DCEP (+) Voltage:.........................................................25-34 Amperage:...................................................170-300 Wire Stick-Out (MIG):..............................1/2” - 3/4” Wire Stick-Out (Open Arc): ...................1” - 1 1/4” Typical Mechanical Values: Typical Hardness 1st Pass: ....................68-70 HRC Typical Hardness 2nd Pass:...................69-71 HRC Temperature Limit ...................................1,400°F (760°C) Carbide Type: Complex borocarbide matrix of sub-micron, near-nano scale microstructure Parameters: Position: Pull Technique Shielding Gasses: a. Recommended gas mixture: 98% Ar + 2% O2 b. Alternative gas mixture: 75%Ar + 25% CO2 90%Ar + 10%CO2
Flow Rates: 30-35 SCFH (15-17 L/min.) Typical Coverage: 5.5lbs will cover 1 sq.ft. x 1/8” thick Note 1 - MIG or Open Arc: Nanoalloy 395 N wire works very well with or without shielding gas. When using extended welding parameters the shielding gas helps reduce heat build up in the welding gun assembly.
Availability: Package: 33 lb coils (15 kg) Wire Diameter: 0.045“ (1.2mm), 1/16“ (1.6mm)
Base Metal Preparation: Parts to be welded should be free of oil or grease. For optimum results a light grind to remove scale or other surface contamination, is advised. Also eliminate any previous weld metal and fatigued metal by mechanical means. Base material such as carbon steels, alloy steels, cast iron, and stainless steels can be welded with this product. Preheating Guide: The carbon and alloy content of the part to be welded normally dictates preheating levels. The ease at which a part air-hardens (air-hardenability) is another critical point along with considerations of work piece size, thickness, and shape. Preheating according to carbon contents of metal and thickness and configuration of the part to be welded. For a total carbon equivalent we recommend: • Up to 0.25%C: It is not necessary to preheat • From 0.25% to 0.45%C: Preheat to 200° - 400°F (100° - 200°C) • From 0.45% to 0.8%C: Preheat to 400° - 660°F (200° - 350°C) Buffer Layer Guide: To minimize any microfissuring tendencies, the use of an underlay is often a practical advantage. When welding manganese steel castings, or steels with a high hardenability, TeroMatec 688OA or 690OA offer an ideal cushion layer to further optimize the wear resistance of 395 N. Welding Technique: As indicated in the parameters, there are certain advantages in using either a “push” or “pull” method during welding. For most downhand welding the pull method is suggested with the wire positioned at a 70°80° angle. This will provide a clean, virtually spatter-free, high-crowned weld deposit. 395 N can be utilized as an open arc wire requiring no shielding gas. Note - If a second pass is required it should follow while the weld metal is still hot.
TYPICAL APPLICATIONS: • Bucket teeth • Mixers • Scrapers • Sinter crushers • Milling liners • Coal crushers
• Extruders • Fans • Bark crushers • Hammers • Knives • Central blades • Milling rolls • Conveyor screws • Pipes and elbows
YOUR RESOURCE FOR PROTECTION, REPAIR AND JOINING SOLUTIONS Eutectic Corporation N94 W14355 Garwin Mace Drive Menomonee Falls, WI 53051 USA P 800-558-8524 • F 262-255-5542 www.eutecticusa.com
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Statement of Liability: Due to variations inherent in speciﬁc applications, the technical information contained herein, including any information as to suggested product applications or results, is presented without representation or warranty, expressed or implied. Without limitation, there are no warranties of merchantability or of ﬁtness for a particular purpose. Each process and application must be fully evaluated by the user in all respects, including suitability, compliance with applicable law and non-infringement of the rights of others, and Eutectic Corporation and its afﬁliates shall have no liability in respect thereof. 395N 08-17-10 © 2008, Eutectic Corporation, ® Reg. T.M., Printed in the U.S.A.