【 】 317 l chemical composition: carbon (C) 0.030 or less, manganese (Mn) of 2.00 or less, nickel (Ni) 11.0 ~ 15.0, silicon (Si) of 1.00 or less, phosphorus (P) of 0.045 or less, sulfur (S) of 0.030 or less, chromium (Cr) 18.0 ~ 20.0, molybdenum (Mo) 3.0 ~ 4.0
	
		【 Properties and Applications of 317L Stainless Steel 】 : 317L(00Cr19Ni13Mo3, UNS S31726) alloy is an austenitic stainless steel based on molybdenum. Compared with conventional chromium-nickel austenitic stainless steels such as 304 alloy, it has a stronger resistance to chemical corrosion. In addition, compared with conventional stainless steel, 317L alloy has higher ductility, stress corrosion resistance, compressive strength and high-temperature resistance. It is a low-carbon grade or L grade, which has the performance of resisting sensitization during welding and heat treatment.