EFe7

2023-05-17 15:55:18 来源：钢铁之家阅读量：0

牌号	EFe7
	W77610
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. EFe7 series electrodes are essentially a higher carbon modification of EFe3 electrodes. Abrasion resistance of the weld deposit is improved with some sacrifice in resistance to impact. Deposits air harden, and a two-layer deposit can be expected to have a hardness of 60 HRC or higher. Stress-relief cracks (checks) typically occur through the overlay. Deposits cannot be machined. Applications. EFe7 electrodes are used for overlaying surfaces that require good low-stress abrasion resistance. Applications include cement chutes, fan blades, bulldozer blades, and other parts and equipment used for earthmoving or construction. Carbon and alloy steels, tool steels, and stainless steels are compatible base metals.

EFe7 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	1.5	-	0.5	-	-	4	-	-	Fe:余量
最大值	3	1.5	2	0.035	0.035	8	1	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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