EFeMn-A

2023-05-17 16:12:30 来源：钢铁之家阅读量：0

牌号	EFeMn-A
	W79110
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. Deposits made with EFeMn series electrodes nominally contain 14% manganese, although they may vary from 12% to 21%. This is an amount sufficient to yield austenitic weld deposits. Austenite is a nonmagnetic, tough form of steel. To preserve the toughness, excessive heat must be avoided during welding. Stringer beads and a block sequence are recommended. The additions of other elements, such as 4% nickel, are made to give more stability to the austenite; chromium, molybdenum, and vanadium are also added singly or in combination of 0.5%–8% to increase the yield strength. Abrasion resistance is only a little better than that of low-carbon steel unless there has been sufficient impact to cause work hardening. As-deposited surfaces generally are no harder than HRC 20, but can work harden to HRC 55. Since deposits are difficult to machine, grinding is preferred for finishing. Applications. These electrodes are used for the rebuilding, repair, and joining of Hadfield austenitic manganese steel. Ability to absorb high impact makes such deposits ideal for the rebuilding of worn rock crushing equipment and parts subject to impact loading, such as railroad frogs.

EFeMn-A 化学元素成分含量(%)

成分	C	Si	Mn	P	S	Ni	其他合计	更多
最小值	0.5	-	12	-	-	2.5	-	Fe:余量
最大值	1	1.3	16	0.035	0.035	5	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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