Metco® Sprabronze AA Wire

Technical Bulletin #10-015

Issued October 2000Supersedes April, 1970

TM

Metco Sprabronze AA is an aluminum bronze alloy wire manufactured exclusively for flame spraying.It produces dense, wear-resistant coatings which are especially good for machine element work.

It is certifiable as meeting Department of Defense specification MIL-W-6712B, Table II, AluminumBronze.

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Metco Sprabronze AA has twice the strength and hardness of other bronzes. Although it sprays withcoarse atomization, the coatings are very dense, very wear-resistant, and machine easily to anexcellent finish.

It can be sprayed with any Metco metallizing gun, using any fuel gas.

Use Sprabronze AA for all general metallizing work with bronze. Successful applications include pumpimpellers, bronze castings, plungers, armature bushing and many other parts.

Copper 90.%Aluminum 9.%Iron 1.%

Melting point: 1615-1900ºFTypical macrohardness: Rb 82Density: gm/cc 7.06

Shrink: in./in. 0055Tensile Strength: psi 29,000

Parameters for spraying Metco Sprabronze AA wire are shown in the Metco Gun InstructionManual.

Spraying

#10-015 2Metco Sprabronze AA Wire

Metco® Sprabronze AA Wire

Applications

Typical Composition

Physical Properties

Coatings of Sprabronze AA can be machined or ground. Use the parameters shown in Vol. I of theFlame Spray Handbook under "Finishing".

The information provided in this document is for the convenience of Sulzer Metco’s customers for thepurpose of evaluation and proper use of the Sulzer Metco product(s) described herein. This documentand the information contained herein is the property of Sulzer Metco and shall not be used, disclosed,or reproduced in whole or in part for any purpose other than for the use of said product(s). Nor shallthis information be used in any way with goods not manufactured and sold by Sulzer Metco. SulzerMetco makes no warranties, express or implied, as to the information contained herein.

#10-015 3Metco Sprabronze AA Wire

Finishing