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发表于 2015-03-17 17:23 |只看楼主

不锈钢304牌号鉴定1、案例背景
该不锈钢产品的使用领域的食品接触材料领域，产品主要用于制作汤锅、水壶等。委托方要求分析该材料是否符合美国标准ASTM A276-2013 304牌号的要求，以确定其所使用的材料是符合《GB 9684-88 不锈钢食具容器卫生标准》条款。

2、分析方法简述

a、对样品进行XRF半定量分析，分析结果如下：

元素'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	Mn'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	Cr'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	Ni'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	Cu'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	Mo'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*
含量'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	1.05%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	18.01%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	8.02%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	0.10%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	0.23%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*

从XRF定性半定量结果上分析，初步可以判定该材料应属于GB 9684-88所规定的奥氏体不锈钢。于是参考不锈钢分析标准对材料进行准确定量分析。

b、依据《GB/T 20123-2006 钢铁总碳硫含量的测定高频感应炉燃烧后红外吸收法(常规方法)》，采用纳克CS3000碳硫分析仪对该材料进行C和S含量分析，结果如下：

元素'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	C'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	S'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*
含量'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	0.065%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	0.018%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*

c、依据《JIS G1258-2-2007 中文版铁及钢—ICP发光光谱分析方法—第2部：锰、镍、铬、钼、铜、钨、钒、钴、钛及铌定量方法—硫酸磷酸分解法》，采用OPTIMA8000对该材料进行Si、Mn、P、Cr、Ni、Cu、Mo等元素进行定量分析，结果如下：

元素'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	Si'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	Mn'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	P'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	Cr'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	Ni'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	Mo'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	Cu'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*
含量'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	0.587%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	1.15%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	0.035%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	18.28%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	8.34%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	0.43%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	0.21%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*

3、结果分析与讨论
通过对该不锈钢材料进行成分分析，并对照ASTM A276-2013 304不锈钢材料成分含量要求发现，该不锈钢材料符合304不锈钢要求，属于《GB 9684-88 不锈钢食具容器卫生标准》所要求的奥氏体不锈钢。

元素'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	材料成分含量'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	304牌号成分要求'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*
C'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	0.065%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	0.08%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*
S'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	0.018%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	0.030%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*
Si'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	0.587%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	1.00%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*
Mn'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	1.15%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	2.00%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*
P'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	0.035%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	0.045%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*
Cr'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	18.28%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	18.0%-20.0%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*
Ni'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	8.34%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	8.0%-11.0%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*
Cu'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	0.21%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	—'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*
Mo'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	0.43%'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	—'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*
Fe'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	余量'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*	—'²A8bbs.3c3t.com,Fm:Â@* '²A8bbs.3c3t.com,Fm:Â@*

4、参考标准'²A8bbs.3c3t.com,Fm:Â@*

GB/T 20123-2006 钢铁总碳硫含量的测定高频感应炉燃烧后红外吸收法(常规方法)'²A8bbs.3c3t.com,Fm:Â@*

JIS G1258-2-2007 中文版铁及钢—ICP发光光谱分析方法—第2部：锰、镍、铬、钼、铜、钨、钒、钴、钛及铌定量方法—硫酸磷酸分解法'²A8bbs.3c3t.com,Fm:Â@*

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