EFeCr-A4

2023-05-17 17:14:00 来源：钢铁之家阅读量：0

牌号	EFeCr-A4
	W74014
对应标准	AWS A5.13/A5.13M-2010 堆焊焊条规范保护金属电弧焊 Specification for Surfacing Electrodes for Shielded Metal Arc Welding
归类	合金钢
标签	铁基堆焊焊条
说明	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-A4 化学元素成分含量(%)

成分	C	Si	Mn	P	S	Cr	Mo	其他合计	更多
最小值	3.5	-	1.5	-	-	23	1	-	Fe:余量
最大值	4.5	1.5	3.5	0.035	0.035	29	1.3	1	Fe:余量

其他单个或其他合计化学成分包括表中未指定值的化学成分。只有在假定存在或在常规分析中，且有迹象表明其成分将超过规定值的情况下，才应进行分析。

碳当量计算

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