SS 317/317L Pipes – Enhanced Strength & Corrosion Protection

KVN offer premium-grade stainless steel 317 and 317L pipes and tubes, designed to meet demanding industrial needs across a variety of applications. Manufactured using top-quality raw materials and advanced processes, these products adhere to globally recognized standards for reliability and performance. Customers can choose from a wide range of configurations, including seamless, ERW, fabricated, and welded types, tailored in various lengths, thicknesses, diameters, and end finishes. We also provide customized solutions to suit specific project requirements. Every product undergoes stringent quality checks before dispatch to ensure compliance with client specifications and industry norms. We serve a broad client base across major regions, including India, UAE, Saudi Arabia, Kuwait, Qatar, Oman, Iran, and Iraq, through our well-established supply and distribution channels.

Technical Overview

Stainless steel grades 317 and 317L are molybdenum-bearing austenitic alloys known for their superior corrosion resistance and mechanical strength. The key distinction between the two lies in the lower carbon content of 317L, which enhances its resistance to intergranular corrosion, particularly in high-temperature welded environments. These materials offer a balanced combination of chemical elements, including higher percentages of nickel, chromium, and molybdenum, contributing to exceptional resistance against pitting and crevice corrosion. They also exhibit robust mechanical properties such as high tensile and yield strength, along with excellent ductility and thermal conductivity. The material’s metallurgical stability and resistance to oxidation make it ideal for fabrication and high-performance industrial use, especially in aggressive or corrosive atmospheres.

Applications & Industry Use

Stainless steel 317/317L and SS 904L Pipes and Tubes are widely used in industries where superior corrosion resistance and thermal performance are essential. These include offshore oil and gas platforms, chemical and petrochemical plants, power generation facilities, and pulp and paper processing units. Their strength and resistance to acids, salts, and harsh media make them a preferred choice in sectors like pharmaceuticals, food processing, fertilizers, cement production, and seawater equipment. Additionally, these pipes are commonly used in heat exchangers, condensers, pumps, reactors, shafts, and aerospace components. The durability, formability, and weldability of SS 317/317L make them ideal for precision-engineered systems where reliability under pressure and temperature extremes is critical. Their proven performance in challenging environments underscores their value across global industrial markets.

317/317L Stainless Steel Pipes and Tubes Equivalent Grades

STANDARD	UNS	WNR.	EN	JIS
SS 317	S31700	1.4449	-	SUS 317
SS 317L	S31703	1.4438	X2CrNiMo18-15-4	SUS 317L

SS 317/317L Seamless Pipes

ASME SA 312 Stainless Steel 317 Seamless Pipes, UNS S31700 Seamless Pipes, DIN 1.4449 Seamless Pipes, SS S31703 Seamless Piping, DIN 1.4438 Seamless Pipe

SS 317/317L Seamless Tubes

ASME SA213 SS 317 Seamless Tube, ASTM A213 Stainless Steel 317L Seamless Tubing, DIN 1.4449 Seamless Tubes, UNS S31700 / S31703 Seamless Tube

SS 317/317L Welded Pipes

Stainless Steel ASTM A312 TP317 Welded Pipes Supplier, UNS S31700 Welded Pipe, ASME SA312 SS 317L Welded Pipes, DIN 1.4449 / 1.4438 Welded Pipe

SS 317/317L Welded Tubes

DIN 1.4449 Welded Tubing, DIN 1.4438 Welded Tube, ASTM A213 / ASME SA 213 Stainless Steel 317L Welded Tubes, UNS S31700 / S31703 Welded Tubes

SS 317/317L EFW Pipes

ASME SA358 SS 317 EFW Pipes, ASTM A358 TP317 EFW Stainless Steel Pipe, SS UNS S31700 EFW Pipes, S31703 EFW Pipe, SS DIN 1.4449 / DIN 1.4438 EFW Pipe Exporter

SS 317/317L ERW Pipes & Tubes

UNS S31703 ERW Pipes, Stainless Steel 317 ERW Tubing, ASTM A213 TP317L Stainless Steel ERW Tubes, ASME SA 312 SS 317 ERW Pipe

Stainless Steel Pipe Specification :

ASTM A312, A358 / ASME SA312, SA358

SS Tube Specification :

ASTM A213, A269, A249, A511, A554 / ASME SA213, SA269, SA249, SA511, SA554

Pipe Size :

1/8” NB to 24” NB, 1/4” OD to 24” OD sizes.

Tube Size :

1/2" OD to 8" OD.

Thickness Range :

0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS

Type :

Seamless / ERW / Welded / Fabricated Pipes

Form :

Round, Square, Rectangular, Oval, Hydraulic Etc

Length :

Single Random, Double Random & Required Length

End :

Plain End, Beveled End, Treaded

End Protection :

Plastic Caps

Outside Finish :

2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements

Delivery Condition :

Annealed and Pickled, Polished, Bright Annealed, Cold Drawn

Inspection, Test Reports :

Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports

Packing :

Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests

Specials :

Sizes and Specifications other than above can be manufactured on request

Chemical Composition of Stainless Steel 317/317L Seamless Pipes And Tubes

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
317	0.08 max	2 max	1 max	0.040 max	0.03 max	18 – 20	3 – 4	11 – 14	-
317L	0.035 max	2 max	1 max	0.040 max	0.03 max	18 – 20	3 – 4	11 – 15	-

Mechanical Properties Of Stainless Steel 317/317L Seamless Pipes and Tubes

Density	8.0 g/cm3
Melting Point	1454 °C (2650 °F)
Tensile Strength	Psi – 75000 , MPa – 515
Yield Strength (0.2%Offset)	Psi – 30000 , MPa – 205
Elongation	35 %

Physical Properties of 317/317L Stainless Steel Pipes And Tubes

Physical Properties (Room Temperature)
Specific Heat (0-100°C)	500	J.kg-1.°K-1
Thermal Conductivity	14.6	W.m -1.°K-1
Thermal Expansion	16.5	mm/m/°C
Modulus Elasticity	193	GPa
Electrical Resistivity	7.4	μohm/cm
Density	7.99	g/cm3