Weston Stainless, based in Midland, UK, is a leading supplier of premium stainless steel products, catering to industries such as construction, marine, and manufacturing with high-quality, precision-engineered materials. Stainless Steel 316 Flanges, made from austenitic stainless steel, provide superior corrosion resistance, strength, and durability. These flanges are available in various shapes, including weld neck, slip-on, blind, socket weld, and threaded flanges, making them suitable for diverse piping applications. Composed of 16-18% chromium, 10-14% nickel, and 2-3% molybdenum, they offer excellent resistance to chloride environments, making them ideal for marine, chemical, and high-pressure industrial applications.

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Stainless Steel 316 Flanges are composed of iron, 16-18% chromium, 10-14% nickel, 2-3% molybdenum, along with small amounts of manganese, silicon, phosphorus, and sulfur, providing excellent corrosion resistance. Their mechanical properties include a tensile strength of 515 MPa, yield strength of 205 MPa, and elongation of 40%, ensuring durability and reliability under high-pressure conditions. Physically, they have a density of 8.0 g/cm³, a melting point of 1370-1400°C, and a thermal conductivity of 16.3 W/m·K, making them ideal for high-temperature, corrosive, and heavy-duty industrial applications in marine, chemical, and process industries.

Stainless Steel 316 Flanges Specifications

Specifications	ASTM A182 / ASME SA182
Size	1/8″ NB TO 48″ NB
Standards	ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Class / Pressure	150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Standard	ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Grades	S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61

Stainless Steel 316 Flanges Chemical Composition

SS	316
Ni	10 – 14
N	0.10 max
Cr	16 – 18
C	0.08 max
Si	0.75 max
Mn	2 max
P	0.045 max
S	0.030 max
Mo	2.00 – 3.00

Stainless Steel 316 Flanges Mechanical Properties

Grade	316
Tensile Strength (MPa) min	515
Yield Strength 0.2% Proof (MPa) min	205
Elongation (% in 50mm) min	40
Hardness
Rockwell B (HR B) max	95
Brinell (HB) max	217

We offer These Products as per DIN, ISO, JIS or ANSI Standard.

Stainless Steel 316 Flanges are widely used in industries requiring high corrosion resistance, strength, and durability. In chemical and petrochemical plants, they connect pipes and equipment, ensuring leak-proof fluid transport. The marine industry uses them in seawater systems and offshore structures due to their resistance to chloride corrosion. In food processing and pharmaceuticals, they ensure hygienic and contamination-free operations. They are also essential in power plants, oil and gas refineries, water treatment plants, and HVAC systems, providing secure connections in high-pressure, high-temperature, and corrosive environments for reliable industrial performance.

Why Choose Stainless Steel 301L Pipes from Weston Stainless?

Largest Inventory

Customer Support

On Time Deliveries

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Types of Stainless 316 Steel Flanges

SS 316 Slip-On Flanges

EEasy to install and typically used in low-pressure applications. They are available in a wide range of sizes from 1/2″ to 24″ in diameter. Made from stainless steel 316, they offer excellent corrosion resistance, making them ideal for marine and industrial environments.

Stainless Steel 316 Weld Neck Flanges

Long tapered hub, which provides added strength and reduces stress at the base of the flange. These flanges range in sizes from 1/2″ to 48″ and are designed for high-pressure systems. The stainless 316 composition ensures high corrosion resistance and durability.

SS 316 Blind Flanges

Used to seal the ends of piping systems or pressure vessel openings. Available in sizes from 1/2″ to 60″, these flanges can withstand high-pressure environments. Their stainless steel 316 material offers superior resistance to corrosion, making them suitable for harsh conditions.

Stainless 316 Steel Threaded Flanges

Designed for systems that require quick assembly and disassembly. They come in sizes ranging from 1/2″ to 24″. The 316 stainless steel construction provides excellent corrosion resistance, ideal for plumbing and water treatment applications.

SS 316 Socket Weld Flanges

Stainless steel fittings that allow pipes to be inserted into a recessed area before welding. They provide strong, leak-proof connections for small-diameter, high-pressure applications.

Stainless 316 Steel Lap Joint Flanges

Used with stub end fittings and are suitable for systems requiring frequent dismantling. These flanges range in sizes from 1/2″ to 24″. The 316 stainless steel provides exceptional corrosion resistance, making them ideal for use in corrosive environments

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Stainless Steel 316 Flanges Uses

Stainless Steel 316 Flanges come with test certificates such as Mill Test Certificates (MTC), third-party inspection reports, and compliance with ASTM, ASME, and EN standards, ensuring superior quality and performance. They are securely packaged in wooden crates, bubble wraps, or protective coverings to prevent damage during transit. With efficient logistics and timely delivery, these flanges are supplied worldwide, meeting the demands of industrial, marine, and high-pressure applications while ensuring product integrity and reliability.