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Surfacing Welding of Stellite Alloy
11-09-2018, 04:05 PM
Post: #1
Surfacing Welding of Stellite Alloy
The Stellite Alloy 6 surfacing material contains about 60% of an alloy, and the matrix is strengthened by adding elements such as chromium, tungsten and carbon. It contains 26%-33% chromium and 3.5%-21% tungsten. Chromium mainly improves oxidation resistance, and tungsten improves the creep strength at high temperature, thereby ensuring good oxidation resistance, corrosion resistance and wear resistance. In addition, with the increase in carbon content, the resulting Cr7C3 gives it excellent anti-abrasive wear properties.
Cobalt alloy surfacing materials are in the form of welding rods, welding wire and welding powder.

Cobalt alloy surfacing electrodes mainly include ECoCr-A, ECoCr-B, ECoCr-C, etc., which are respectively welded with low carbon, medium carbon and high carbon cobalt chromium tungsten alloy as welding core. They are all titanium-calcium type medicines, which can be used for both AC and DC. It is recommended to use DC reverse connection, stable arc, good slag coverage and beautiful appearance. The surfacing layer has excellent corrosion resistance, wear resistance, and heat resistance, and can maintain these characteristics at a high temperature of 60 degrees Celsius or higher.

The cobalt alloy welding wire has cast low-carbon, medium-carbon, high-carbon cobalt-chromium-tungsten alloy surfacing welding wire, and the surfacing layer has good corrosion resistance, heat resistance and wear resistance, and can maintain these temperatures at temperatures above 600 degrees Celsius. characteristic.

Stellite 6 powders mainly include SHF221, SHF222 and SHF224. F222 and F224 are respectively high and high hardness cobalt chromium tungsten silicon boron alloy powder, F221 is medium hardness cobalt chromium tungsten silicon boron alloy powder, which has good red hardness and high temperature oxidation resistance, wear resistance and corrosion resistance. Sex, it has good wear resistance and corrosion resistance in the environment below 700 degrees Celsius, and can be cut and processed. F221 has good plasticity and can withstand the impact under hot and cold conditions, and is not easy to crack. F224 has poor impact resistance, and the finer the particle size of the cobalt-based alloy powder, the easier it is to melt. is a professional Stellite Alloy 12 manufacturer, welcome your visit.
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