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Copper-Base Filler Metal for Welding Aluminum Bronzes and for Dissimilar Metal Joining of Copper Alloys to Steels and Cast Irons ®

TigTectic 1851

TIG ROD • Ideal for hard-to-weld dissimilar combinations • Good for corrosion resistant cladding on bearing surfaces • Excellent comparative mechanical properties



TigTectic 1851 is particularly resistant to cracking when used for dissimilar metal joining. Weld deposits contain elements that inhibit inter-granular stress corrosion cracking when used to join and surface aluminum bronze castings.

Preparation: Remove all contaminants, particularly oil and grease. Lightly grind surfaces to remove superficial oxides. Prepare cracks to have a 60-75° V-groove. A root opening of 1/8- in. is recommended. If necessary, preheat to remove moisture.


Technique: Use a properly ground thoriated or lanthinated tungsten with the appropriate gas cup size for sufficient puddle coverage. Deposit 1851 with stringer beads only. Maintain shielding gas flow until solidification is complete.

• Aluminum bronze pump housings • Manganese bronze impellers • Ships propellers • Turbine runners • Press rams • Joining cast iron to steel • Tin plate mill rolls • Hydraulic pistons

Note: High frequency AC recommended for application thinner than 0.040 or where additional weld puddle cleaning is needed. Note: Make sure that the inter-pass temperature does not exceed 300°F.


Post-welding: Slow cool out of the way of drafts. 2

• Typical Tensile Strength 90,000 psi (620 N/mm ) • Typical Yield strength 38,000 psi (262 N/mm2) • Typical Hardness (BNH) 150 • Typical work hardened hardness: (BNH) 200 • Current & Polarity: DCEN (-) • Shielding Gas: Welding grade argon

WELD PARAMETERS: Filler Diameter


Cup Size

Shielding Gas

Flow Rate

1/16” (1.6mm)



100% Argon

35-40 scfh

3/32” (2.0mm)



100% Argon

40-55 scfh

HEALTH AND SAFETY: 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

Eutectic Canada 428, rue Aime Vincent Vaudreuil-Dorion, Quebec J7V 5V5 Phone: (800) 361-9439 Fax: (514) 695-8793

Eutectic Mexico KM 36.5 Autopista Mexico-Quertaro 54730 Cautitlan-Izcalli Estado de Mexico, Mexico Phone: 011 (52) 55-5872-1111 e-mail:

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. 1851 02-27-12 © 2008, Eutectic Corporation, ® Reg. T.M., Printed in the U.S.A.


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