Flanges act as connecting mechanisms between pipes, tubes, and valves in various fluid systems. Choosing the right flange material and type is key in designing an effective piping system. Stainless steel flanges are popular due to their corrosion-resistant properties, strength, and durability. Stainless Steel 304 / 304L Flanges are a popular choice for many applications due to their numerous benefits, including high corrosion resistance, strength and durability, and are cost-effective in the long run. Excellent chemical composition and heat treatment capabilities offer maximum reliability and performance even in severe environments.
Stainless Steel 304 Flanges Features:
Stainless Steel 304 Flanges offer numerous features that make them popular for high-strength and durability applications. They comprise 18% chromium and 8% nickel, making them more malleable and stronger than other steel grades. These flanges can withstand temperatures up to 800°F and have a high resistance to scaling and oxidation.
Table Content
Stainless Steel 304L Flanges Corrosion Resistance
The resistance of Stainless Steel 304L Flanges to corrosion is one of their outstanding features. Compared to other materials, the 304L Flange is highly resistant to general corrosion from atmospheric exposure, acidic environments, and corrosive chemicals. They are also suitable for marine environments because they resist saltwater exposure.
Stainless Steel 304 Flanges Chemical Composition
The chemical composition of Stainless Steel 304 Flanges is based on several elements, with Chromium and Nickel being the key elements. They are present in high proportions, making the steel both strong and corrosion-resistant. Other elements that are also present include Carbon, Manganese, and Silicon. Combining these elements creates a steel alloy with exceptional strength, flexibility, and corrosion resistance.
Stainless Steel 304L Flanges Heat Treatment
Heat treatment plays a significant role in the durability and performance of Stainless Steel 304L Flanges. This treatment helps to improve the mechanical properties of stainless steel flanges and eradicate defects from the forging process. Heat treatment processes used for Stainless Steel 304L Flanges include annealing, quenching, and tempering.
Forging or Forming & Machining
Hole Drilling & Surface Treatment
Quality Control & Marking, Identification
Final Inspection and Packaging
| Standard | ASTM A182 / ASME SA182 |
| Dimensions | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
| Flange Size Chart | 1/2" (15 NB) to 48" (1200NB), DN10~DN5000 |
| Pressure Rating | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| JIS | 16 K, 5K, 10 K, 20 K, 30 K, 40 K, 63 K |
| Flange Connection / Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove, Flange Pipe. |
| Origin | West Europe / Japan / Indian / USA / Korean |
| Types of Flanges | Threaded / Screwed / Forged / Plate |
| Coating | Yellow Transparent, Zinc Plated, Anti-rust Paint, Oil Black Paint, Cold and Hot Dip Galvanized |
| Test Of Flange | Direct-reading Spectrograph, Ultrasonic flaw detector, Magnetic particle detector, X-ray detector, Hydrostatic testing machine. |
| Production technique Used | Heat treated, Forged and Machined |
| Equipment | Press machine, Bending machine, Pushing Machine, Sand-blasting machine, electric bevelling machine etc. |
| Test Certificates | EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report, etc |
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| STANDARD | UNS | WNR. | AFNOR | EN | JIS | BS | GOST |
| SS 304 | S30400 | 1.4301 | Z7CN18‐09 | X5CrNi18-10 | SUS 304 | 304S31 | 08Х18Н10 |
| SS 304L | S30403 | 1.4306/1.4307 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 | SUS 304L | 304S11 | 03Х18Н11 |
| Grade | C | Mn | Si | P | S | Cr | Mo | 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 | – |
| Grade | Density | Melting Point | Tensilee 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 % |
“ Check Bhansali Exports's offered stainless steel 304 & 304l Flanges Prices, Dimensions & Weight. Place an order or enquire about your requirements. We will glad to be service. ”
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