409 409 Stainless Steel Properties and Applications: 409 stainless steel, the cheapest model (BAR), commonly used as automobile exhaust pipe, is a ferritic stainless steel (chrome steel). 409 steel chemical composition ①: Carbon C: ≤0.08 Mn Mn: ≤1.00 Si Si: ≤1.00 chromium Cr: 10.5 ~ 11.75 Nickel Ni②: ≤0.50 phosphorus P: ≤0.045 sulfur S: ≤0.03 Titanium Ti: (6C ~ 0.75) Note: ① single value except otherwise stated, are the highest value; ② pipe technology for some time, and some types of austenitic stainless steel containing nickel content must be slightly higher than the values ??shown in the table; ③ random; ④ containing Ta highest amount of 0.10%; ⑤ the highest content of 0.75%; ⑥ highest content of 0.70% Chuan sharp metal: Shenzhen, Huizhou, Heyuan, Guangdong Dongguan Changan stainless excellence Chuan sharp metal: Taiyuan, Hangzhou, Wuhu Huangyan Lishui stainless excellence Chuan sharp metal: Dezhou, Dongying, Jinan, Laiwu Liaocheng stainless excellence Chuan sharp metal: Hanzhong, Shaanxi Xi'an Yingkou Shenyang Yangzhou stainless excellence Chuan sharp metal: Hebi Luoyang Xinxiang Xinyang Yancheng Laiwu steel excellence Chuan sharp metal: Chuzhou, Anhui Wuhu, Huzhou, Ningbo, Weihai stainless steel excellence Chuan sharp metal: Ganzhou 饶宜春 Wenzhou Changzhou stainless excellence Chuan sharp metal on Nanchang: Changzhou, Jiangsu Huaian, Nanjing, Nantong sunshine stainless excellence Chuan sharp metal: Changshu, Taicang, Wujiang Luoyang Yantai stainless excellence Chuan sharp metal: Wuxi Jiangyin Yixing Xuzhou Yancheng Jiaxing excellence Chuan sharp stainless steel metal: Jiang Yin Wujiang, Wuxi, Hangzhou, Huzhou Suqian stainless excellence Chuan sharp metal: Jinhua, Yiwu, Nanchang, Qingdao, Zibo, Dongying stainless excellence Chuan sharp metal: Yuyao Yixing, Shanghai, Xi'an, Taizhou Chuan sharp metal stainless excellence: Shaoxing, Taizhou Huangyan Changshu Yuyao Lishui River excellence sharp stainless steel metal: Stainless excellence Hefei, Nanjing, Xiamen, Wenzhou Yueqing Ryan Chuan sharp metal: Jining, Shandong Binzhou Dezhou, Jinan, Dongying stainless excellence Chuan sharp metal: Weihai, Yantai, Zibo, Weifang, Qingdao Jiaxing excellent quality stainless steel sharp metal Chuan: If Suzhou, Kunshan, Changshu, east Rugao Tongzhou excellence Chuan sharp stainless steel metal: Jing Jiang Taixing Wuxi, Xuzhou, Jiangyin Yixing excellence Chuan sharp stainless steel metal: Yizheng Gaoyou jiangdu Jurong Zhenjiang, Danyang excellence Chuan sharp stainless steel metal: Jiangyan rooftop Wenling Yong Kang, Dongying, Yantai excellent quality stainless steel ------------------------------