... steel U-channel Grade: AISI 304, 201 ,316 , 321 etc, Size: 6 #-24 # Surface: bright, polished, peeled ... bar , U channel , stainless steel channels,channel steellMaterial Grade: 201,301,304,304L,310,316,316L,321,2205, 416, 431, 430 etc ... . 201 (1Cr17Mn6Ni5N) 202 (1Cr18Mn8Ni5) 301 (1Cr17Ni7) 304 (0Cr18Ni9) 304L (00Cr19Ni10) 310 (1Cr25Ni20) 316 (0Cr17Ni12Mo2 ...