An Alloyed Wire for Universal Joining and Cladding of High Strength Steels
MigTectic 680 ®
WIRE • Good for Tool & Die, Spring, Dissimilar and other hard-to-weld steels • Dense, porosity and spatter free deposits • Excellent for rebuilding or as cushioning for other coatings
DESCRIPTION:
INSTRUCTIONS FOR USE:
MigTectic 680 is a uniquely formulated wire for welding virtually all commonly used industrial steels, particularly those alloys requiring very high strength joining properties. Suitable for joining stainless steels of unknown composition.
Preparation: Clean weld area of scale and oxide. Remove grease and oil by using a suitable VOC-free solvent. Preheating is generally not needed when welding stainless steels. For hardenable tool steels check the preheat/inter-pass temperature guidelines in the Reference Section.
APPLICATIONS: Use as an under-bead cushion when surfacing tools & dies and for critical joining of composite die assemblies. Dissimilar metal welding of thin tubing, surgical instrument, dairy equipment,
TECHNICAL DATA: Typical Tensile Strength: 106,000 psi (730 MPa) Typical Yield Strength: 75,500 psi (520 MPa) Current & Polarity: DCEP (+) Shielding Gas & Flow: Ar + 2% O2 @ 30-40 scfh Stick out: 3/16 ± 1/16” Ferrite Number(FN) (WRC-92): 65
Technique: Start the arc by using impulse high-frequency or by using a copper startblock. Do not use a carbon block as this will contaminate the weld deposit! Deposit stringer beads. Do not weave more than 2x as wide beads can cause distortion. Post-welding: Parts which have been preheated should be wrapped or covered with heat –retardant material to help with slow cooling. Series 300 stainless steels should cool naturally in still air.
HEALTH AND SAFETY:
WELD PARAMETERS: Diameter
Amperage
Feed Rate
Voltage
.035”
140-220
150-300 ipm
23-28
.045”
180-260
180-325 ipm
24-29
Observe normal welding practices, respiratory protection and proper air flow pattern advised. For general welding practices, see AWS publications Z49.1 “Safety in Welding and Cutting and Allied Process”. Welding is a completely safe process when performed in accordance with proper safety measures. Become familiar with local safety regulations before beginning welding operations. DO NOT operate welding equipment or use welding materials before you have thoroughly read the proper instruction manual(s). Please refer to the Eutectic internet site for Material Safety Data Sheet (MSDS) information. DISREGARDING THESE INSTRUCTIONS, AND/OR THE INSTRUCTIONS OF WELDING EQUIPMENT OR MATERIAL MANUALS, MAY BE HAZARDOUS TO YOUR HEALTH.
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.eutectic.com
Eutectic Canada 428, rue Aime Vincent Vaudreuil-Dorion, Quebec J7V 5V5 Phone: (800) 361-9439 Fax: (514) 695-8793 www.eutectic-na.com
Eutectic Mexico KM 36.5 Autopista Mexico-Quertaro 54730 Cautitlan-Izcalli Estado de Mexico, Mexico Phone: 011 (52) 55-5872-1111 e-mail: eutectic@eutectic.com.mx
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. 680 08-24-12 © 2008, Eutectic Corporation, ® Reg. T.M., Printed in the U.S.A.