... :AISI,ASTM, 1.Description:stainless steel seamless pipe2.Grade:201,202,301,304,304L,310,316,316L,321,430 etc ... 201 (1Cr17Mn6Ni5N) 202 (1Cr18Mn8Ni5) 301 (1Cr17Ni7) 304 (0Cr18Ni9) 304L (00Cr19Ni10) 310 (1Cr25Ni20) 316 (0Cr17Ni12Mo2) 316L ( ... 00Cr17Ni12Mo2) 321H (1Cr18Ni11Ti) 321 (0Cr18Ni11Ti)3.Material:304,304L,321,316,316L,2520,1Cr13,2Cr13,3Cr13,4Cr13,42CrMo ...