2014年8月14日星期四

P20 Tungsten Carbide Bar Introduction

P20 tungsten carbide bar flexural strength of not less than 1270 MPa, hardness of not less than 90.5HRA, density at 11.2g/cm³ into 12.0g/cm³ range. Mainly by a mix of tungsten carbide and cobalt powder metallurgy method by milling, ball milling, pressing, sintering, has good wear resistance and flexural strength. With WC amount in the range of 69% to 92%, the cobalt content of between 5% and 10%, the amount of titanium contained in the 5-15% plus or minus, containing tantalum content is 0% to 15% do not and so on. Ingredients for different purposes carbide strip of tungsten carbide and cobalt are not consistent, the use of a very wide range, the main component of tungsten carbide and cobalt alloys. Alloy strip is one of a number of materials, predominantly in a stripe shape. 

P20 tungsten carbide bar has excellent article by rigid, high hardness, wear resistance, good high elastic modulus, high compressive strength, chemical stability (acid, alkali, high temperature oxidation), impact toughness is low coefficient of expansion low thermal conductivity of iron and its alloys with similar characteristics.

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