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ECoCr-E簡介

牌號 ECoCr-E
W73021
對應(yīng)標(biāo)準(zhǔn) AWS A5.13/A5.13M-2010
堆焊焊條規(guī)范 保護(hù)金屬電弧焊
Specification for Surfacing Electrodes for Shielded Metal Arc Welding
歸類 合金鋼
標(biāo)簽 鈷基堆焊焊條
說明 Characteristics. Welds made using ECoCr-E electrodes have very good strength and ductility at temperatures up to 1600°F [870°C]. Deposits are resistant to thermal shock, and oxidizing and reducing atmospheres. Early applications of these types of alloys were found in jet engine components such as turbine blades and vanes.
The deposit is a solid-solution-strengthened alloy with a relatively low weight-percent carbide phase in the microstruc-ture. Hence, the alloy is very tough and will work harden. Deposits possess excellent self-mated galling resistance and also are very resistant to cavitation erosion.
Applications. Welds made using ECoCr-E electrodes are used where resistance to thermal shock is important. Typical applications, similar to those of ECoCr-A deposits, include guide rolls, hot extrusion and forging dies, hot shear blades, tong bits, and valve trim.
ECoCr-E 化學(xué)元素成分含量(%)
成分 Fe C Si Mn P S Cr Ni Mo W 其他合計(jì) 更多
最小值 - 0.15 - - - - 24 2 4.5 - - Co:余量
最大值 5 0.4 2 1.5 0.03 0.03 29 4 6.5 0.5 1
其他單個(gè)或其他合計(jì)化學(xué)成分包括表中未指定值的化學(xué)成分。只有在假定存在或在常規(guī)分析中,且有跡象表明其成分將超過規(guī)定值的情況下,才應(yīng)進(jìn)行分析。
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