Stainless Steel 317317L Flanges

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Stainless Steel 317317L Flanges Specification

Feature
Corrosion Resistance, High Strength, Durable

Grade
317 / 317L

Dimension (L*W*H)
As per ASME/ANSI B16.5

Application
Petrochemical, Chemical Industry, Oil & Gas, Power Plants

Purity
99%

Product Type
Pipe Flange

Material
Stainless Steel

Standard
ASTM A182 / ASME SA 182

Shape
Round

Surface
Polished

Connection
Welded / Bolted

Technics
Forged

Pressure
150# to 2500#

Size
1/2 to 24 (DN15-DN600)

Color
Silver

About Stainless Steel 317317L Flanges

What Are Specification Stainless Steel 317/317L Flanges?

Specifications List	ASTM A182 / ASME SA182
Class / Pressure Rating	150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Size Chart	1/2 (15 NB) to 48 (1200NB)
ASTM Standards	ANSI/ASME B16.5, B16.48, BS4504, B 16.47 Series A & B, BS 10, EN-1092, DIN, etc.
Standard s	ANSI, ASME, BS, DIN, EN etc.

Equivalent material Of Stainless Steel 317/317L Flanges?

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

Chemical Composition Of Stainless Steel 317/317L Flanges?

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	Fe
SS 317	0.08 max	2.0 max	1.0 max	0.045 max	0.030 max	18.00 - 20.00	3.00 - 4.00	11.00 - 15.00	57.845 min
SS 317L	0.035 max	2.0 max	1.0 max	0.045 max	0.030 max	18.00 - 20.00	3.00 - 4.00	11.00 - 15.00	57.89 min

Mechanical Properties Of Stainless Steel 317/317L Flanges?

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
7.9 g/cm3	1402 C (2555 F)	Psi 75000 , MPa 515	Psi 30000 , MPa 205	40 %

Wide Range of Types and Sizes

Our Stainless Steel 317/317L flanges are available in Slip On, Blind, Weld Neck, Socket Weld, Threaded, and Lap Joint variants. Ranging from 1/2 to 24 inches (DN15DN600), these round flanges are manufactured as per ASME/ANSI B16.5 dimensional standards, ensuring precise fit for various industrial applications.

Superior Corrosion Resistance

Engineered from high-purity 99% stainless steel, Grade 317/317L, these flanges are designed for maximum corrosion resistance. This makes them ideal for harsh environments found in petrochemical plants, chemical industries, oil & gas operations, and power generation facilities.

High Temperature and Pressure Endurance

With a melting point between 1398C and 1454C and a temperature range up to 870C, these flanges reliably operate under extreme thermal conditions. They also support pressure ratings from 150# to 2500#, accommodating a variety of piping requirements efficiently.

FAQs of Stainless Steel 317317L Flanges:

Q: How are Stainless Steel 317/317L Flanges manufactured?

A: These flanges are produced through a hot forged and machined process, followed by polishing to ensure a smooth, corrosion-resistant surface. Each piece is crafted to meet ASTM A182 / ASME SA 182 standards, guaranteeing quality and precision.

Q: What industries commonly use 317/317L flanges?

A: Stainless Steel 317/317L flanges are widely deployed in sectors like petrochemical, chemical, oil & gas, and power plants due to their impressive corrosion resistance and ability to handle high temperatures and pressures.

Q: When should I choose a Raised Face (RF), Flat Face (FF), or Ring Type Joint (RTJ) flange?

A: Choose RF for general-purpose, moderate-pressure applications; FF when connecting to equipment with flat-faced flanges; and RTJ for high-pressure systems requiring a robust seal. Selection depends on your operating conditions and compatibility needs.

Q: Where are these flanges typically installed?

A: These flanges are primarily installed within pipelines and equipment connections in refineries, chemical plants, oil & gas extraction sites, and power generation facilities, serving as essential connectors for safe, leak-proof operations.

Q: What are the main benefits of using 317/317L flanges in industrial applications?

A: Key benefits include excellent resistance to corrosion and chemicals, high mechanical strength, durability in extreme temperatures up to 870C, and compliance with international standards, ensuring long service life and low maintenance costs.

Q: How does the schedule (SCH 10, SCH 40, SCH 80, SCH 160) affect flange selection?

A: The schedule denotes wall thicknesshigher schedules support greater pressure and are chosen based on system demands. Select the schedule that matches your pipelines pressure, flow requirements, and safety standards.

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