Stainless Steel 304304L Flanges

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Stainless Steel 304304L Flanges Specification

Grade
304/304L

Feature
Corrosion resistance, high strength, durability

Purity
Greater than 99%

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

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

Product Type
Flange

Material
Stainless Steel 304/304L

Standard

Shape
Round

Surface
Polished / Mirror / Matt finish

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

Technics
Forged

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

Size
1/2 to 48 (DN15 to DN1200)

Color
Silver

About Stainless Steel 304304L Flanges

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	1/2 (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 304/304L Flanges?

STANDARD	UNS	WNR.	AFNOR	EN	JIS	BS	GOST
SS 304	S30400	1.4301	Z7CN1809	X5CrNi18-10	SUS 304	304S31	081810
SS 304L	S30403	1.4306/1.4307	Z3CN1810	X2CrNi18-9 / X2CrNi19-11	SUS 304L	304S11	031811

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 20	8 11	-
SS 304L	0.035 max	2.0 max	1.0 max	0.045 max	0.03 max	18 20	8 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 C (2550 F)	Psi 75000, MPa 515	Psi 30000, MPa 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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