SS 317 Flanges Supplier Mumbai, India

SS 317 flanges are high-alloy stainless steel components crafted to deliver exceptional resistance against corrosion, scaling, and chemical attack in the most demanding environments. Known for their higher molybdenum content compared to SS 304 and SS 316, these flanges stand out for their ability to handle aggressive chemicals, chlorides, and acidic media. Industries such as chemical processing, pulp and paper, food production, marine engineering, and oil refineries trust 317 flanges for their long-lasting reliability and safety. Designed for strength and precision, they ensure leak-proof pipeline connections while withstanding extreme pressure and temperature variations—making them the ideal choice for mission-critical applications.

Applications & Benefits
The power of SS 317 flanges lies in their adaptability across multiple industrial sectors. They are widely used in heat exchangers, evaporators, condensers, and process piping systems where resistance to pitting and crevice corrosion is essential. Available in diverse types like weld neck, slip-on, blind, threaded, socket weld, and lap joint, SS 317 flanges provide engineers and decision-makers with tailored solutions for specific project needs. Their advantages go beyond corrosion resistance: high tensile strength, excellent weldability, and low maintenance requirements translate into reduced downtime and cost savings. For industries where durability and hygiene are non-negotiable, SS 317 flanges deliver consistent performance, even in harsh and corrosive operating conditions.

Why Choose SS 317 Flanges
Choosing SS 317 flanges means investing in long-term reliability, operational safety, and global quality standards. These flanges not only extend the lifespan of piping systems but also enhance efficiency by minimizing leaks, failures, and replacements. With their proven track record in challenging industrial environments, 317 flanges offer organizations peace of mind and maximum return on investment. Whether you are designing new infrastructure or upgrading existing systems, SS 317 flanges provide a future-ready solution that ensures uninterrupted performance, compliance with international standards, and unmatched endurance. For industries that demand cutting-edge performance, SS 317 are more than a choice—they are a strategic advantage.

317/317L SS Flanges Equivalent Grades

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

SS 317/317L Slip On Flanges

Stainless Steel 317 SORF Flanges, UNS S31700 / S31703 Slip On, DIN 1.4449 SORF Flanges, ASME SA 182 SS F317L Slip-on Raised Face Flanges

SS 317/317L Weld Neck Flanges

ASME SA182 SS 317L WNRF Flanges, ASTM A182 Stainless Steel 317 Weld Neck Flanges, DIN 1.4449 Weld Neck Flanges, UNS S31700 Weld Neck Raised Face Flanges

SS 317/317L Blind Flanges

Stainless Steel ASTM A182 F317 Blind Flanges, UNS S31700 / DIN 1.4449 Blind Flanges, ASME SA182 SS 317L BLRF Flanges, SS 317/317L Blind Raised Face Flanges Supplier

SS 317/317L Threaded Flanges

DIN 1.4449 Threaded Flanges, UNS S31700 Screwed Flanges, ASME SA 182 Stainless Steel 317L Threaded Flanges, ASTM A182 317/317L SS Threaded Flanges

SS 317/317L Socket Weld Flanges

ASTM A182 F317L Stainless Steel Socket Weld Flanges, SS UNS S31700/ S31703 Socket Weld Flanges, SS DIN 1.4438 Socket Weld Flanges

SS 317/317L Lap Joint Flanges

UNS S31700 Lap Joint Flanges, SS 317 Lap Joint Flanges, ASTM A182 F317L Stainless Steel Lap Joint Flanges, ASME SA 182 SS 317/317L Lap Joint Flanges

SS 317/317L Ring Type Joint Flange

UNS S31700 Ring Type Joint Flange, ANSI B16.5 SS 317 RTJ Flanges, ASTM A182 F317L SS Ring Type Joint Flanges, ASME SA 182 SS 317/317L Ring Type Joint Flanges

SS 317/317L Orifice Flanges

UNS S31700 Orifice Flanges, B16.36 Stainless Steel 317 Orifice Flanges, ASTM A182 F317L Stainless Steel Orifice Flanges, ASME SA 182 SS 317/317L Orifice Flanges

SS 317/317L Long Weld Neck Flanges

UNS S31703 Long Weld Neck Flanges, SS 1.4438 Long Weld Neck Flanges, ASTM A182 F317L Stainless Steel Long Weld Neck Flanges, ASME SA 182 SS 317/317L Long Weld Neck Flanges

SS 317/317L Spectacle Blind Flanges

UNS S31703 Spectacle Blind Flanges, ANSI / ASME B16.5 Stainless Steel 317 Spectacle Blind Flanges, ASTM A182 F317L Stainless Steel Spectacle Blind Flanges, SA 182 SS 317/317L Spectacle Blind Flanges

SS 317/317L Forged Flanges

UNS S31703 Forged Flanges, B16.5 SS 317 Forged Flanges, ASTM A182 F317L Stainless Steel Forged Flanges, ASME SA 182 SS 317/317L Forged Flanges

SS 317/317L Plate Flanges

UNS S31700 Plate Flanges, ANSI B16.5 Stainless Steel 317 Plate Flanges, ASTM A182 F317L Stainless Steel Plate Flanges, ASME SA 182 SS 317/317L Plate Flanges

Stainless Steel Flanges Specification :

ASTM A182 / ASME SA182

Dimension Standard :

ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.

Standard :

ANSI, ASME, BS, DIN, EN Flanges, etc.

Size :

1/2" (15 NB) to 48" (1200NB)

Class / Pressure :

150, 300, 600, 900, 1500, 2500, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Flange Face Type :

Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

DIN Flanges :

DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673.

JIS Flanges :

JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K

BS Flanges :

BS4504 PN 6, BS 4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS 4504 PN 64, BS 4504 PN 100, BS 4504 PN 160, BS 4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H.

Chemical Composition of SS 317/317L Flanges

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 Steel 317/317L Flanges

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 SS Flanges

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