Stainless Steel 304/304L/304H Flanges, ASTM A182 Stainless Steel 304L Slip On Flanges Dealer, Stainless Steel Flanges, SS Flange, Steel Plate Flanges Suppliers, SS Grades 304/304L/304H Industrial Flanges Stockists, Distributors of ASME SA182 Stainless Steel 304H Blind Flanges in Mumbai, India.

Neeka Tubes is one of the leading organisations supplying the best quality and highly corrosion-resistant SS 304/304L/304H Flanges to our valued clients.Stainless steel 304 is mainly known as the most frequent used ‘austenitic stainless steel’. It contains a high amount of chromium (approximately between 18-20 %) and nickel content (between 8 – 10.5 %) .You can also find other significant elements such as carbon, silicone and manganese and iron as a remainder chemical composition. SS 304 has great resistance to various range of atmospheric environments and numerous corrosive media. Another positive aspect is the corrosion-resistant in water with up to precisely about 400 mg/L chlorides at atmosphere temperatures ( reduces it to around 150 mg/L at 60°C).

It is the most versatile and flexible stainless steel as it can be used for various kind of household and industrial applications as for example screws, processing equipment’s and food handling, card headers and machinery parts. Additionally, it can also be used in the architectural field for exterior accents e.g water and outdoor space with fire features.

The Advantages of our SS 304 Flanges Suppliers

  • Cost-Effective and Affordable
  • Desirable Low-Temperature Properties
  • The Controlled Chemical Composition are carefully monitored 
  • High Resistance and Strength
  • Good Formability and Weldability 
  • Outstanding Response to Hardening by Cold Working
  • High Oxidation/Corrision Resistance

The Difference Between 304, 304L and 304H

SS 304, 304L and 304H  possess the same nickel and chromium, which means they also share the same corrosion resistance, ease of fabrication and weldability. 

Despite that , 304L is known as an ‘ultra carbon stainless steel’ , and the carbon component being down around to 0.03 %. In theory,  it is argued that 304L effects of stress corrosion resistance is better than 304, though in practice the effect is not evident or obvious.Key advantages of 304L is that it has excellent welding characteristics and the fact that you don’t require post-weld annealing.

Among the three , 304H has the highest carbon compounds , making it perfect for applications  which requires ‘good mechanical properties at elevated temperatures’.Whereas  304L has the lowest carbon compounds, and  SS 304 carbon componds is in the middle.

DIN 1.4301 Stainless Steel Flat Face Flanges, Werkstoff No 1.4306 / 1.4307 SS
Socket Weld Raised Face Flanges (SWRF) Traders, EN 1092-1 Stainless Steel 304 Reducing Flanges, SS SUS 304 Spectacle Blind Flanges Suppliers, SS 304L Square Flanges, Stainless Steel 304H BS4504 Tongue & Groove Flanges, 304L SS Weld Neck Raised Face Flanges (WNRF) Flanges Exporters.

Neeka Tubes is a suppliers & exporters of largest SS 304 / 304L Flanges in INDIA.

Standard Specification (SS 304/ 304L/ 304H)
Specifications : ASTM A182 / ASME SA182
Size : 1/2″ (15 NB) to 48″ (1200NB)
Standards : ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Class : 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.
Form : Orifice Flanges, Slip on Flanges (SORF), Spectacle Blind Flanges, Forged Flanges, Threaded Flanges, Blind Flanges, Socket weld Flanges, Lap Joint Flanges, Ring Type Joint Flanges, Spacer Ring Flanges, Plate Flanges, Long weld Neck Flanges, Nipo Flange, Nipolet Flanges, Weld neck Flanges (WNRF), Flat Flange

 Equivalent Grades
Standard SS 304 SS 304L
UNS S30400 S30403
Werkstoff Nr. 1.4301 1.4306/1.4307
EN X5CrNi18-10 X2CrNi18-9 / X2CrNi19-11
BS 304S31 304S11
GOST 08Х18Н10 03Х18Н11
JIS SUS 304 SUS 304L
AFNOR Z7CN18‐09 Z3CN18‐10

 Chemical Composition
Element Ni C Mn P S Si Cr
SS 304 8.0 – 11.0 0.08 2.0 max 0.045 max 0.03 max 1.0 max 18.0 – 20.0
SS 304L 8.0 – 13.0 0.35 2.0 max 0.045 max 0.03 max 1.0 max 18.0 – 20.0

Mechanical Properties
Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
SS 304 8.0 g/cm3 1400 °C (2550 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %
SS 304L 8.0 g/cm3 1400 °C (2550 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %


Types of Stainless Steel 304/304L Flanges

Images of Stainless Steel Flanges

Types of Flanges

Raised Face Slip On Flanges

           Slip On Flanges

Raised Face Weld Neck Flanges

         Weld Neck Flanges

Blind Flanges

         Blind Flanges

SS 304 Orifice Flanges

         Orifice Flanges

SS 304 Socket weld Flanges

       Socket weld Flanges

SS 304 Threaded Flanges

        Threaded Flanges

SS 304 Long weld Neck Flanges

       Long weld Neck Flanges

SS 304 Ring Type Joint Flanges

             RTJ Flanges

SS 304 Reducing Flanges

      Reducing Flanges

SS 304 Forged Flanges

         Forged Flanges




Stainless Steel Flanges Application Industries

  • Off-Shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals
  • Pharmaceuticals
  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers
  • Pulp and Paper Industry 

Other Great Products/Services