| 摘要 |
The present invention relates to a cemented carbide with excellent properties for oil and gas applications including resistance to the combined erosion and corrosion synergistic effects at temperatures between -50 and 300 DEG C., preferably 0-100 DEG C. The cemented carbide contains, in wt %, 2.5-4.5 (Co+Ni) with a weight ratio Co/Ni of about 3, 0.25-0.6 Cr and 0.1 Mo wherein essentially all of the WC grains have a size <1 mu m and wherein the total carbon content is in the interval of 6.13-(0.061+/-0.008)xbinder phase (Co+Ni) content (wt-%). |
