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牌號(hào) EFeCr-AlA
W74011
對(duì)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 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(xué)元素成分含量(%)
成分 C Si Mn P S Cr Mo 其他合計(jì) 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(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。
注:數(shù)據(jù)僅供參考!如有疑問,請(qǐng)?zhí)顚?我要糾錯(cuò)"!
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