SS 304 Flanges Supplier

Stainless Steel Flanges are piping components that connect pipes, valves, and other equipment in a plumbing system. They are available in different materials, such as stainless steel, carbon steel, and alloy steel. Stainless Steel 304 Flanges come in two types: weld neck and slip-on. Weld neck flanges are used when welding is necessary; they have a long tapered hub that allows for a smooth transition between the flange and pipe.

ANSI B16.5 Stainless Steel 304 Flanges, Stainless Steel 304L Flanges, Stainless Steel 304H Flanges, UNS S30400 Flanges, Stainless Steel 1.4301 Flanges, SS S30403 Flanges, Stainless Steel 304 Flanges, SS S30409 Flanges Stockist, 304 Stainless Steel Flange, Flange Ss 304, Alloy 304 Flanges, Ss 304 Flange Weight Chart, Ss 304 Flange Dimensions, ASTM A182 304L Stainless Steel Flanges Supplier in Mumbai, India.

Slip-on flanges are often used in low-pressure applications; they have an internal lip that helps seal the connection between the flange and pipe. Both stainless steel 304 flanges can be found with a raised or flat face option. The raised face provides a better sealing surface area for gaskets and seals than the flat face. At Metcore Steel, we pride ourselves on providing excellent customer service and offering a wide range of products, including Stainless Steel Flanges and Stainless Steel 310 Flanges.

304 Stainless Steel Slip-On Flanges, 304L Stainless Steel Weld Neck Flanges, AISI 304H Stainless Steel Blind Flanges, 1.4948 Stainless Steel Forged Flanges Exporter, Stainless Steel 1.4301 Threaded Flanges, ASME SA 182 Stainless Steel 304L Ring Type Joint Flange, Stainless Steel 1.4307 Socket Weld Flange, SUS 304H Loose Flanges, 304L SS Industrial Flanges, 304 Stainless Steel Flanges, Ansi 304 Stainless Steel Flange, Stainless Steel 304 Flanges Manufacturers, 304 Threaded Flange, Ss 304 Flange Price List, 304 SS Reducing Flanges Manufacturer in India.

Stainless steel 304L Flanges offer excellent corrosion resistance and strength at elevated temperatures. They are often used in chemical processing plants or other industrial settings where highly corrosive materials are processed or stored. They can also be used in steam systems where temperatures exceed 1000F without losing their strength or corrosion resistance properties—making them ideal for environments with high heat. In addition to our range of Stainless Steel Flanges we also offer a variety of Hastelloy C22 Flanges to meet your piping needs.

Stainless steel 304H Flanges offer superior strength and hardness compared to standard grade 304L stainless steels which makes them well-suited for applications that require superior mechanical properties, such as valves or fittings exposed to higher temperatures and pressures. Additionally, these high-carbon versions offer increased resistance to intergranular corrosion due to their higher chromium content—improving performance over time even when exposed to aggressive environments or chemicals.

All three types of Stainless Steel 304 Flanges, weld neck, slip-on, and high/low carbon variations offer excellent corrosion resistance and superior strength at elevated temperatures for any application requiring these properties. They are solid mechanical performance or superior corrosion protection from harsh environments, and all three types provide an ideal solution.


Stainless steel 304 flanges are a type of pipe fitting made from grade 304 stainless steel. This material is a popular choice for flanges due to its high corrosion resistance & ability to withstand high temperatures and pressures.
The size of an SS 304 blind flange can vary depending on the specific application, but they are commonly available in sizes ranging from 1/2 inch to 24 inches in diameter.
The rating of a 304L flange can also vary depending on the specific application, but they are typically rated for use in high pressure applications up to 1500 psi. However, it is important to note that a flange's rating depends on many factors, such as the size, temperature & material of the piping system.

SS 304 Flanges Specification

Specifications :

Dimensions :

Standard :

Size :

Class/Pressure :

Flange Face Type :

ASTM A182, ASTM A182

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

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

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

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

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

SS 304L Flanges Equivalent Grades

Grade UNS DIN JIS EN GOST AFNOR BS
SS 304 S30400 1.4301 SUS 304 X5CrNi18-10 08Х18Н10 Z7CN18‐09 304S31
SS 304L S30403 1.4306 / 1.4307 SUS 304L X2CrNi18-9 / X2CrNi19-11 03Х18Н11 Z3CN18‐10 3304S11
SS 304H S30409 1.4948 - - - - -

SS 304H Flanges Chemical Composition

Grade C Mn Si P S Cr Ni
SS 304 0.08 max 2.0 max 0.75 max 0.045 max 0.03 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
S 304H 0.10 max 2.0 max 0.75 max 0.045 max 0.03 max 18 – 20 8 – 10.5

SS 304 Flanges Mechanical Properties

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
8.0 g/cm3 1400 °C (2550 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %
8.0 g/cm3 1400 °C (2550 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %
8.0 g/cm3 1400 °C (2550 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 40 %


SS 304L Flanges Available Types

Stainless Steel 304 / 304L / 304H Slip On Flanges
  • Stainless Steel 304 Slip On Flanges
  • Stainless Steel 304L Slip On Flanges
  • Stainless Steel 304H Slip On Flanges
  • SS S30400, S30403, S30409 Slip On Flanges
  • 1.4301, 1.4307, 1.4948 Slip On Flanges
  • ASTM A182 SS 304 Slip On Flanges (SORF)
  • ASME SA 182 Stainless Steel 304L Slip On Flanges
Stainless Steel 304 / 304L / 304H Weld Neck Flanges
  • Stainless Steel 304 Weld Neck Flanges
  • Stainless Steel 304L Weld Neck Flanges
  • Stainless Steel 304H Weld Neck Flanges
  • SS S30400, S30403, S30409 Weld Neck Flanges
  • 1.4301, 1.4307, 1.4948 Weld Neck Flanges
  • ASTM A182 SS 304 Weld Neck Flanges (WNRF)
  • ASME SA 182 Stainless Steel 304L Weld Neck Flanges
Stainless Steel 304 / 304L / 304H Socket Weld Flanges
  • Stainless Steel 304 Socket Weld Flanges
  • Stainless Steel 304L Socket Weld Flanges
  • Stainless Steel 304H Socket Weld Flanges
  • SS S30400, S30403, S30409 Socket Weld Flanges
  • 1.4301, 1.4307, 1.4948 Socket Weld Flanges
  • ASTM A182 SS 304 Socket Weld Flanges (SWRF)
  • ASME SA 182 Stainless Steel 304L Socket Weld Flanges
Stainless Steel 304 / 304L / 304H Blind Flanges
  • Stainless Steel 304 Blind Flanges
  • Stainless Steel 304L Blind Flanges
  • Stainless Steel 304H Blind Flanges
  • SS S30400, S30403, S30409 Blind Flanges
  • 1.4301, 1.4307, 1.4948 Blind Flanges
  • ASTM A182 SS 304 Blind Flanges (BLRF)
  • ASME SA 182 Stainless Steel 304L Blind Flanges
Stainless Steel 304 / 304L / 304H Ring Type Joint Flanges
  • Stainless Steel 304 Ring Type Joint Flanges
  • Stainless Steel 304L Ring Type Joint Flanges
  • Stainless Steel 304H Ring Type Joint Flanges
  • SS S30400, S30403, S30409 Ring Type Joint Flanges
  • 1.4301, 1.4307, 1.4948 Ring Type Joint Flanges
  • ASTM A182 SS 304 Ring Type Joint Flanges (RTJ)
  • ASME SA 182 Stainless Steel 304L Ring Type Joint Flanges
Stainless Steel 304 / 304L / 304H Long Weld Neck Flanges
  • Stainless Steel 304 Long Weld Neck Flanges
  • Stainless Steel 304L Long Weld Neck Flanges
  • Stainless Steel 304H Long Weld Neck Flanges
  • SS S30400, S30403, S30409 Long Weld Neck Flanges
  • 1.4301, 1.4307, 1.4948 Long Weld Neck Flanges
  • ASTM A182 SS 304 Long Weld Neck Flanges
  • ASME SA 182 Stainless Steel 304L Long Weld Neck Flanges

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