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EFeCr-A7簡介

牌號 EFeCr-A7
W74017
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 鐵基堆焊焊條
說明 Characteristics. These are a higher carbon version of EFeCr-A5 electrodes. The deposit contains hexagonal chromium carbides in an austenitic carbide matrix and has a hardness of 50–60 HRC. Deposits develop stress-relief checks. The addition of molybdenum increases wear resistance to high stress abrasion. The weld metal may be applied on carbon, alloy, or austenitic manganese steel base metal.
Applications. Weld metal is frequently used for applications involving low stress abrasive wear combined with moderate impact.
EFeCr-A7 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 0.5 - - 23 2 - Fe:余量
最大值 5 2.5 1.5 0.035 0.035 30 4.5 1
其他單個或其他合計(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。 碳當(dāng)量計(jì)算
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