Stainless Steel Flanges

Stainless Steel 304304L Flanges

Application:Petrochemical, Power Generation, Oil and Gas, Water Treatment, Food Processing

Color:Silver

Connection:Other, Welded, Threaded, Socket Weld, Slip-on, Blind, Lap Joint, Flange

Dimension (L*W*H):As per standard specifications and customer requirement

Feature:Corrosion resistance, high strength, durability

Grade:304/304L

Material:Stainless Steel 304/304L

Pressure:Class 150#, 300#, 600#, 900#, 1500#, 2500#

Product Type:Other, Flange

Purity:Greater than 99%

Shape:Round

Size:1/2 to 48 (DN15 to DN1200)

Standard:Other, ASME/ANSI B16.5, DIN, JIS, BS and other international standards

Surface:Other, Polished / Mirror / Matt finish

Technics:Other, Forged

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What Are Specification Stainless Steel 304/304L 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	1/2â³ (15 NB) to 48â³ (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 304/304L Flanges?

STANDARD	UNS	WNR.	AFNOR	EN	JIS	BS	GOST
SS 304	S30400	1.4301	Z7CN18â09	X5CrNi18-10	SUS 304	304S31	08Ð¥18Ð10
SS 304L	S30403	1.4306/1.4307	Z3CN18â10	X2CrNi18-9 / X2CrNi19-11	SUS 304L	304S11	03Ð¥18Ð11

Chemical Composition Of Stainless Steel 304/304L Flanges?

Grade	C	Mn	Si	P	S	Cr	Ni	N
SS 304	0.08 max	2 max	0.75 max	0.045 max	0.030 max	18 â 20	8 â 11	-
SS 304L	0.035 max	2.0 max	1.0 max	0.045 max	0.03 max	18 â 20	8 â 13	-

Mechanical Properties Of Stainless Steel 304/304L Flanges?

Grade	Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
SS 304/304L	8.0 g/cm3	1400 Â°C (2550 Â°F)	Psi â 75000, MPa â 515	Psi â 30000, MPa â 205	40 %

Exceptional Strength and Durability

Engineered from Stainless Steel 304/304L, these flanges offer a density of 7.93 g/cm and a hardness range between 160 and 210 HB, enabling them to perform in demanding environments like oil and gas, petrochemical, power generation, and water treatment. Their reliable composition ensures longevity, minimizing maintenance needs and downtime.

Versatile Application and Customization

Available in sizes ranging from 1/2 inch to 48 inches (DN15 to DN1200), with multiple face and connection types, these flanges can be tailored according to specific dimension, pressure, and finish requirements. Their adaptability allows seamless integration into new installations or existing systems, enhancing operational flexibility.

FAQs of Stainless Steel 304304L Flanges:

Q: How are Stainless Steel 304/304L flanges typically used in industrial applications?

A: These flanges are widely deployed in connecting pipes, valves, pumps, and other equipment across industries such as petrochemical, power generation, oil and gas, water treatment, and food processing. Their corrosion resistance and strength make them suitable for harsh and high-pressure environments.

Q: What benefits do 304/304L stainless steel flanges provide over other material grades?

A: 304/304L stainless steel flanges deliver superior corrosion resistance, excellent mechanical properties, high purity, and extended durability. These characteristics make them cost-effective in environments where chemical exposure and extreme temperatures are factors.

Q: When should I choose Raised Face, Flat Face, or Ring Type Joint flange face types?

A: Selecting the appropriate flange face depends on the application requirements: Raised Face (RF) for high-pressure sealing, Flat Face (FF) for systems with flat-faced mating parts, and Ring Type Joint (RTJ) for environments demanding enhanced leak protection under high temperature and pressure.

Q: Where are these flanges manufactured and how are they packaged for shipping?

A: Manufactured and supplied from India, these flanges are exported globally. To prevent damage during transit, each flange is marked with size, pressure, material grade, and heat number and securely packaged in wooden cases, pallets, or bubble wrap as required.

Q: What process is used to manufacture Stainless Steel 304/304L flanges?

A: These flanges are primarily produced by forging, according to international standards such as ASME/ANSI B16.5. This process ensures uniformity, mechanical strength, and a smooth finish, tailored to specific customer or industry specifications.

Q: How should I specify the correct flange for my project?

A: It is crucial to consider parameters such as flange face type, end connection, pressure class, size, material grade, and required finish. Sharing detailed application requirements with the supplier ensures the most suitable flange is provided for your system.

Q: What sealing method is recommended for Stainless Steel 304/304L flanges?

A: Sealing is typically achieved using gaskets compatible with the flange face type, ensuring a reliable, leak-proof connection suitable for the operating pressure and temperature range.

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Stainless Steel 321321H Flanges

Application:Oil & Gas, Petrochemical, Power Plant, Chemical Industry, Shipbuilding, Paper & Pulp

Color:Silver / Metallic

Connection:Other, Welded, Screwed, Threaded

Dimension (L*W*H):Custom as per Order

Feature:Corrosion Resistance, High Temperature Resistance, Durability, Precise Dimensions

Grade:321 / 321H

Material:Stainless Steel 321/321H

Pressure:150#, 300#, 600#, 900#, 1500#, 2500#

Product Type:Other, Flange

Purity:>99%

Shape:Round

Size:1/2 to 60 (DN15âDN1500)

Standard:Other, ASTM A182, ANSI B16.5, DIN, JIS, BS, GB, IS

Surface:Other, Polished / Machined

Technics:Other, Forged

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What Are Specification Stainless Steel 321/321H 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	1/2â³ (15 NB) to 48â³ (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 321/321H Flanges?

STANDARD	WERKSTOFF NR.	UNS	JIS	EN
SS 321	1.4541	S32100	SUS 321	X6CrNiTi18-10
SS 321H	1.4878	S32109	SUS 321H	X12CrNiTi18-9

Chemical Composition Of Stainless Steel 321/321H Flanges?

Grade	C	Mn	Si	P	S	Cr	N	Ni	Ti
SS 321	0.08 max	2.0 max	1.0 max	0.045 max	0.030 max	17.00 - 19.00	0.10 max	9.00 - 12.00	5(C+N) â 0.70 max
SS 321H	0.04 â 0.10	2.0 max	1.0 max	0.045 max	0.030 max	17.00 - 19.00	0.10 max	9.00 â 12.00	4(C+N) â 0.70 max

Mechanical Properties Of Stainless Steel 321/321H Flanges?

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1457 Â°C (2650 Â°F)	Psi â 75000 , MPa â 515	Psi â 30000 , MPa â 205	35 %

Precision Engineering & Robust Design

Each Stainless Steel 321/321H flange is forged with meticulous attention to dimensional accuracy and surface finish, available in polished or machined options. The combination of precise manufacturing techniques and strict quality control guarantees secure, leak-proof connections under severe temperature and pressure conditions.

Versatile Application Across Industries

With their exemplary corrosion and high-temperature resistance, these flanges are the preferred choice for industries including oil & gas, chemical processing, shipbuilding, and paper & pulp. Their adaptability to various connection types and custom dimensions ensures seamless integration into complex piping systems and infrastructure.

FAQs of Stainless Steel 321321H Flanges:

Q: How are Stainless Steel 321/321H flanges typically used in industrial settings?

A: These flanges are designed for connecting pipes, valves, and other equipment in critical applications, including oil & gas plants, petrochemical complexes, and power generation facilities. Their robust material properties allow them to withstand corrosive substances and high operational temperatures, ensuring safe and long-lasting piping systems.

Q: What standards and certifications do Stainless Steel 321/321H flanges comply with?

A: They adhere to globally recognized standards such as ASTM A182, ANSI B16.5, and are also compliant with DIN, JIS, BS, GB, and IS standards. Furthermore, they are NACE MR0175 and IBR approved, confirming their suitability for sour service and boiler regulations, respectively.

Q: When should you choose 321/321H grade stainless steel flanges over other types?

A: Select 321/321H flanges when the application demands excellent resistance to high temperatures, up to 870C, and strong performance in environments exposed to corrosive elements, such as acids or chlorides. These grades are ideal for systems requiring both mechanical robustness and stability at elevated temperatures.

Q: What are the available connection types and flange faces offered?

A: Connection options include welded, screwed, and threaded types, providing installation flexibility. Available flange faces include Raised Face (RF), Flat Face (FF), and Ring Type Joint (RTJ), each suited to specific sealing and operational requirements.

Q: How does the manufacturing process ensure the durability and precision of these flanges?

A: All flanges are produced through advanced forging techniques, followed by precise machining to obtain the required dimensions and finish. Rigorous inspection throughout production ensures each product meets stringent quality, hardness, and strength specifications.

Q: What are the main benefits of using Stainless Steel 321/321H flanges in piping systems?

A: The primary advantages include superior resistance to corrosion and oxidation, high temperature durability, structural reliability, and longevity in challenging operational environments. Their precise dimensions facilitate easy assembly and dependable, leak-tight joints.

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Stainless Steel 316Ti Flanges

Application:Petrochemical, Oil & Gas, Chemical Processing, Power Generation

Color:Silver / Metallic

Connection:Other, Welded / Bolted

Dimension (L*W*H):Varies as per size

Feature:High Corrosion Resistance, Excellent Strength, Durable

Grade:316Ti

Material:Stainless Steel 316Ti

Pressure:Class 150 to Class 2500

Product Type:Other, Flange

Purity:Premium quality with low carbon content

Shape:Round

Size:1/2 to 24 (DN15 to DN600)

Standard:Other, ASTM A182 / ASME SA182

Surface:Other, Polished / Smooth

Technics:Other, Forged / Casting

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STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
SS 316Ti	1.4571	S31635	SUS 316Ti	320S31	08Ch17N13M2T	Z6CNDT17â123	X6CrNiMoTi17-12-2

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
SS 316Ti	0.08 max	2 max	0.75 max	0.045 max	0.030 max	16.00 â 18.00	2.00 â 3.00	10.00 â 14.00	68.395 min

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1399 Â°C (2550 Â°F)	Psi â 75000 , MPa â 515	Psi â 30000 , MPa â 205	35 %

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Stainless Steel 317317L Flanges

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

Color:Silver

Connection:Other, Welded / Bolted

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

Feature:Corrosion Resistance, High Strength, Durable

Grade:317 / 317L

Material:Stainless Steel

Pressure:150# to 2500#

Product Type:Other, Pipe Flange

Purity:99%

Shape:Round

Size:1/2 to 24 (DN15-DN600)

Standard:Other, ASTM A182 / ASME SA 182

Surface:Other, Polished

Technics:Other, Forged

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

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

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Stainless Steel 310310S Flanges

Application:Petrochemical, Oil & Gas, Power Plants, Chemical Processing, Heat Exchangers, Furnace Parts

Color:Silver

Connection:Other, Welded, Screwed, Slip On, Socket Weld, Blind, Lap Joint, Threaded, Orifice

Dimension (L*W*H):As per standards

Feature:Corrosion resistant, Heat resistant, Durable

Grade:SS 310 / SS 310S

Material:Stainless Steel

Pressure:Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500

Product Type:Other, Flanges

Purity:99%

Shape:Round

Size:1/2 NB to 48 NB

Standard:Other, ANSI, ASME, DIN, JIS, BS, EN

Surface:Other, Bright, Polished

Technics:Other, Forged

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What Are Specification Stainless Steel 310/310S 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	1/2â³ (15 NB) to 48â³ (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 310/310S Flanges?

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
SS 310	1.4841	S31000	SUS 310	310S24	20Ch25N20S2	â	X15CrNi25-20
SS 310S	1.4845	S31008	SUS 310S	310S16	20Ch23N18	â	X8CrNi25-21

Chemical Composition Of Stainless Steel 310/310S Flanges?

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
SS 310	0.015 max	2 max	0.015 max	0.020 max	0.015 max	24.00 â 26.00	0.10 max	19.00 â 21.00	54.7 min
SS 310S	0.08 max	2 max	1.00 max	0.045 max	0.030 max	24.00 â 26.00	0.75 max	19.00 â 21.00	53.095 min

Mechanical Properties Of Stainless Steel 310/310S Flanges?

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

Exceptional Heat and Corrosion Resistance

Stainless Steel 310/310S flanges are renowned for their superior heat resistance, withstanding operating temperatures up to 1150C. Their high chromium and nickel content ensures long-term performance in corrosive environments, making them suitable for sectors like chemical processing and power generation. These properties significantly reduce maintenance and enhance safety in extreme conditions.

Versatile Applications and Customization

These flanges offer outstanding versatility in terms of end types (plain, beveled, raised face) and finishes (mirror, matte, or custom), catering to diverse industrial needs. Sourced in a broad range of sizes and compatible with various connection techniqueswelded, screwed, orificed, and morethey can adapt to a wide array of systems in petrochemical, oil & gas, and other heavy-duty applications.

FAQs of Stainless Steel 310310S Flanges:

Q: How are Stainless Steel 310/310S flanges typically used in industry?

A: These flanges are primarily utilized in high-temperature and corrosive environments such as petrochemical plants, oil & gas refineries, power plants, chemical processing facilities, heat exchangers, and furnace parts. Their robust construction ensures secure connections in piping systems, enabling safe processing under harsh conditions.

Q: What benefits do SS 310/310S flanges provide compared to other stainless steels?

A: SS 310/310S flanges offer superior heat and corrosion resistance, supporting temperatures up to 1150C and resisting oxidation and scaling. Their high strength and durability increase the longevity and safety of systems, making them preferable for applications requiring both toughness and thermal resilience.

Q: When should I opt for a mirror, matte, or custom finish on these flanges?

A: The finish type is determined by operational needs and aesthetic preferences. Mirror finishes provide enhanced corrosion resistance and an attractive appearance, ideal for visible or hygienic applications. Matte and custom finishes may be selected for environments requiring less reflectivity or specific technical criteria.

Q: Where are Stainless Steel 310/310S flanges manufactured and exported from?

A: These flanges are widely manufactured, exported, and supplied by trusted companies in India, adhering to international standards such as ANSI, ASME, DIN, JIS, BS, and EN. They are shipped globally in robust packaging like wooden cases and pallets to ensure safe delivery.

Q: What processes are involved in producing SS 310/310S flanges?

A: The flanges are typically forged, shaped, and machined according to precise standards. Quality control includes spectral analysis to verify material composition, dimensional checks, and surface finishing to achieve the required mirror, matte, or custom finishes. This manufacturing process ensures consistency, purity, and performance.

Q: How does the connection typesuch as welded or threadedaffect flange selection?

A: The connection type depends on the installation requirements. Welded flanges offer leak-proof integration and strength, while threaded or screwed options facilitate easy assembly and maintenance. Slip-on, socket weld, blind, lap joint, and orifice types accommodate different piping layouts and operational needs.

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Stainless Steel 316316L316H Flanges

Application:Chemical, Petrochemical, Power Plant, Oil & Gas, Water Treatment, Food Processing

Color:Silver

Connection:Other, Welded / Screwed / Threaded / Socket Weld / Slip-on

Dimension (L*W*H):As per standard or custom requirements

Feature:Corrosion Resistant, Durable, High Strength

Grade:316 / 316L / 316H

Material:Stainless Steel 316, 316L, 316H

Pressure:150# to 2500# (PN6-PN400)

Product Type:Other, Flange

Purity:High Purity Stainless Steel

Shape:Round

Size:1/2 NB to 48 NB (DN15-DN1200)

Standard:Other, ASTM A182 / ASME SA182, ANSI, DIN, JIS, BS, EN, GOST

Surface:Other, Bright, Polished, Anti-rust oil

Technics:Other, Forged / Cast

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STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
SS 316	1.4401 / 1.4436	S31600	SUS 316	316S31 / 316S33	-	Z7CND17-11-02	X5CrNiMo17-12-2 / X3CrNiMo17-13-3
SS 316L	1.4404 / 1.4435	S31603	SUS 316L	316S11 / 316S13	03Ch17N14M3 / 03Ch17N14M2	Z3CND17-11-02 / Z3CND18-14-03	X2CrNiMo17-12-2 / X2CrNiMo18-14-3
SS 316H	1.4401	S31609	-	-	-	-	-

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
SS 316	0.08 max	2 max	0.75 max	0.045 max	0.030 max	18 â 20	-	8 â 11	-
SS 316L	0.035 max	2.0 max	1.0 max	0.045 max	0.03 max	18 â 20	-	8 â 13	-
SS 316H	0.10 max	2.0 max	0.75 max	0.045 max	0.03 max	18 â 20	-	8 â 10.5	-

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1400 Â°C (2550 Â°F)	Psi â 75000 , MPa â 515	Psi â 30000 , MPa â 205	35 %
8.0 g/cm3	1399 Â°C (2550 Â°F)	Psi â 75000 , MPa â 515	Psi â 30000 , MPa â 205	35 %