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EFeCr-AlA簡介

牌號 EFeCr-AlA
W74011
對應(yīng)標準 AWS A5.13/A5.13M-2010
堆焊焊條規(guī)范 保護金屬電弧焊
Specification for Surfacing Electrodes for Shielded Metal Arc Welding
歸類 合金鋼
標簽 鐵基堆焊焊條
說明 Characteristics. Weld metal deposited by these electrodes will contain massive chromium carbides in an austenitic matrix providing excellent wear resistance and toughness. Surface checks are typical and give some degree of stress relief. Deposits cannot be machined and must be ground when finishing is required. To ensure the desired deposit composition, two layers are recommended. Additional layers invite spalling and must be applied with caution. Electrodes are suitable for welding on carbon, alloy, and austenitic steels as well as cast irons. The weld metal deposited by EFeCr-A1A electrodes generally provides greater resistance to impact but slightly less abrasion resistance than weld metal deposited by EFeCr-A4 electrodes.
Applications. Deposits frequently are used to surface parts and equipment involved in sliding and crushing of rock, ore, etc., such as bucket lips and teeth, impact hammers, and conveyors. Very low coefficients of friction develop as a result of scouring by earth products.
EFeCr-AlA 化學元素成分含量(%)
成分 C Si Mn P S Cr Mo 其他合計 更多
最小值 3.5 0.5 4 - - 20 - - Fe:余量
最大值 4.5 2 6 0.035 0.035 25 0.5 1
其他單個或其他合計化學成分包括表中未指定值的化學成分。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)進行分析。 碳當量計算
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