X2CrNiN18-7 1.4318 - NF EN 10296-2-2005

牌号	X2CrNiN18-7
	1.4318
对应标准	NF EN 10296-2-2005 机械和一般工程用焊接圆钢管-交货技术条件-第2部分:不锈钢管 Welded circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2 : stainless steel tubes
归类	奥氏体不锈钢

X2CrNiN18-7 化学元素成分含量(%)

成分	C	Si	Mn	P	S	Cr	Ni	N
最小值	-	-	-	-	-	16.5	6	0.1
最大值	0.03	1	2	0.045	0.015	18.5	8	0.2

碳当量计算

X2CrNiN18-7 机械性能

条件	抗拉强度 σ_b Mpa	屈服点 σ_s Mpa	断后伸长率或延伸率 δ %
钢管：	≥630	Rp0.2：≥330 Rp1.0：≥370	l：≥45 t：≥45

◎ l-纵向，t-横向

◎ 根据EN ISO 3651-2进行测试，抗晶间腐蚀：有

热处理指南

Steel grade		Heat treatment during fabrication and further processing		Hot working during further processing e.g. hot bending
Name	Number	Solution anneailing Temperature ℃ ①	Type of cooling ②	Temperature ℃	Type of cooling
X2CrNiN18-7	1.4318	1020 to 1100	w or a or g	1150 to 850	a or g

◎ a=air; w=water; g=gas.
① When heat treatment forms part of further processing of the product. an attempt should be made to achieve the lower values of the range for solution annealing. lf hot working has been carried out at a temperature of at least 850 °C or if the product has been cold worked, the temperature used for subsequent solution annealing may be 20 °C less than the lower limit stipulated for solution annealing.
② Cooling should be sufficiently rapid.

X2CrNiN18-7 对应不同标准

1	EN 10088-1-2005 不锈钢第1部分:不锈钢的清单
	X2CrNiN 18-7 1.4318
2	EN 10296-2-2005 机械工程和一般工程用焊接圆钢管.交货技术条件.第2部分:不锈钢
	X2CrNiN18-7 1.4318
3	ISO TS 15510-2003 技术规范不锈钢-化学成分
	X2CrNiN18-7
4	ISO 15510-2014 技术规范不锈钢-化学成分
	X2CrNiN18-7 4318-301-53-I
5	ISO 9328-7-2018 不锈钢承压扁钢制品
	X2CrNiN18-7
6	NF EN 10088-2-2005 普通用途不锈钢板和钢带的交货技术条件
	X2CrNiN18-7 1.4318
7	NF EN 10088-1-2005 不锈钢 - 第1部分：不锈钢清单
	X2CrNiN18-7 1.4318
8	NF EN 10028-7-2008 压力容器用不锈钢扁平产品
	X2CrNiN18-7 1.4318
9	NF EN 10296-2-2005 机械和一般工程用焊接圆钢管-交货技术条件-第2部分:不锈钢管
	X2CrNiN18-7 1.4318
10	NF EN 10028-7-2000 压力容器用不锈钢扁平产品
	X2CrNiN18-7 1.4318

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