317/317L Stainless Steel Pipe

317L stainless steel pipe, also known as UNS S31703 and Grade 317L SS pipe, it is a low carbon high grade stainless steel pipe, with a good corrosion resistance and machine work performance. Compare to 317L, 317 stainless steel has a higher carbon content, it means that 317 stainless steel has a better heat resistance. Kaysuns supply both 317 and 317L stainless steel pipe, and dual grade 317/317L is available based on the requirement to ASTM A312 or EN10216-5 etc.

Chemical Composition of 317L Stainless Steel Tubing ASTM A312, ASTM A269, ASTM A213

Grade	C	Mn	P	S	Si	Ni	Cr	Mo	Weight %
TP317						11.00	18.00	3.00	Min.
	0.08	2.00	0.045	0.030	1.00	14.00	20.00	4.00	Max.
TP317L						11.00	18.00	3.00	Min.
	0.035	2.00	0.045	0.03	1.00	15.00	20.00	4.00	Max.

Mechanical Properties of 317L Stainless Steel Tubing ASTM A269, ASTM A213, ASTM A312

Grade	Tensile Strength, Min. Mpa	Yield Strength, Min. Mpa	Longitudinal
TP317	515	205	35
TP317L	515	205	35

Available Manufacturing and Dimension for 317L Stainless Steel Pipe

ASTM A312, ASTM A269, ASTM A213, ASTM A249, ASTM A358, EN10216-5, EN10217-7, DIN 17456, DIN 17455, GOST 9941, JIS G3459, JIS G3463 etc.

Features of 317/317L Stainless Steel Tubes

• In the point of chemical composition, the chromium, nickel and molybdenum contents of 317L stainless steel pipe are increased by 2%, 1%, and 1% compare to 316L stainless steel pipe. The threes are the main elements that determine the performance of stainless steel pipe. Reflected in the Pitting corrosion resistance, the performance of 317L stainless steel is better than 304L and 316L stainless steel.

• The corrosion resistance of 317L stainless steel is similar to 316L stianless steel . The high molybdenum content ensures that it has a better resistance to overall and local corrosion for most media – such as sulfuric acid, acid chlorine and phosphoric acid. In strong oxidizing acids such as nitric acid, 317L stainless steel is susceptible to corrosion.

• The performance of the 317L stainless steel is basically the same as 317 stainless steel. Due to the lower carbon content, the welding performance of 317L ss pipe and the intergranular corrosion resistance performance at high temperature (427~816 °C) are better than 317 ss pipe.

Material Comparision of 317/317L Stainless Steel ASTM / EN /JIS

China – GB		Japan	USA		KS	EN/DIN	AS	CNS	DIN
Grade	New(GB24511)	JIS	ASTM	UNS					Grade
S31708	06Cr19Ni13Mo3	SUS317	317	S31700	STS317	1.4449	317	317	X5CrNiMo1713
S31703	022Cr19Ni13Mo3	SUS317L	317L	S31703	STS317L	1.4438	317L	317L	X2CrNiMo18-15-4

Application

317 & 317L stainless steel are commonly used in flue gas desulfurization systems, chemical and petrochemical processing, food and beverage industries, petroleum refining, condensers for generator equipment, and paper industry etc. Kaysuns provides dual grade 317/317L stainless steel pipes with more than 10 year experiences.

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