Veer Flanges is a well-respected manufacturer and supplier of Stainless Steel 253MA Flanges based in Kolkata, India. We specialize in providing high-strength, oxidation-resistant flanges that are specifically crafted for extreme temperature applications. The 253MA alloy is an austenitic stainless steel that boasts remarkable high-temperature strength, oxidation resistance, and creep resistance, all thanks to its thoughtfully balanced chemistry, which includes rare earth metals. Our flanges are produced in accordance with ASTM A182, ASME B16.5, and other international standards, ensuring they are durable and dimensionally accurate. SS 253MA flanges are perfect for use in thermal processing, heat treatment plants, petrochemical equipment, and industrial furnaces that require reliable performance at elevated temperatures.
Stainless Steel 253MA Flanges generally consist of 21% chromium, 11% nickel, 0.05% carbon, 1.6% silicon, and rare earth elements (REM) that boost oxidation resistance. These flanges deliver a tensile strength of around 600 MPa, a yield strength of about 310 MPa, and an elongation of 40%. They can withstand oxidation up to 1150°C (2102°F) and offer excellent creep strength. 253MA is known for its structural stability, maintaining strength even at high temperatures, and it also provides good resistance to sulfidation, making it ideal for high-temperature applications involving sulfuric gases and thermal cycling.
| Standards | ANSI/ASME B16.5, EN Flanges, BS 10, B16.47 Series A & B, EN-1092, ASME Flanges, BS Flanges, B16.48, DIN, DIN Flanges, GOST Flanges, ANSI Flanges, BS4504. |
| Size | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
| Pressure Rating | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| Production technique | Forged, Heat treated and machined |
|
Special design |
As per your drawing |
| AS, ANSI, BS, DIN and JIS | |
| 15 NB (1/2″) to 200 NB (8″) | |
| Equal and Reducing Configurations | |
| Connect Type/ Flange Face Type | Ring Type Joint (RTJ), Small Tongue, Raised Face (RF), Lap-Joint Face (LJF), Small Male-Female (SMF), Flat Face (FF), Large Tongue & Groove, Large Male-Female (LMF). |
| Largest Bore Diameter Sizes | NPS ≤ 10 |
| Minimum & Maximum Size | 1/2″ To 48″ |
| Origin | Indian / Japan / Korean / West Europe / USA |
| JIS Standard | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K |
| A182 Flange EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
|
Test Certificates |
EN 10204/3.1B |
| Raw Materials Certificate | |
| 100% Radiography Test Report | |
| Third Party Inspection Report, etc. | |
| Application | Gas, Power, Chemical, Metallurgy, Petroleum, Shipbuilding, Construction etc. |
| Grade | C | Ni | Si | N | S | Mn | P | Cr | Ce | Fe |
| 253 MA | 0.05 – 0.10 | 10.00-12.0 max | 1.40 -2.00 max | 0.14-0.20 max | 1.40-2.00 max | 0.80 max | 0.04 max | 20.00 – 22.00 | 0.03 – 0.08 | Balance |
| Tensile Strength | Elongation | Yield Strength (0.2%Offset) | Hardness |
| 600 | 40% | 310 | 95(Rockwell B) |
Veer Flanges, a leading supplier in Kolkata, India, offers an extensive selection of Stainless Steel 253MA flanges, including weld neck flanges, slip-on flanges, blind flanges, threaded flanges, and lap joint flanges. Designed for diverse industrial applications, our high-quality inventory and commitment to exceptional service make us a trusted choice for flange products in the region.
| STANDARD | WERKSTOFF NR. | UNS |
| 253 MA | 1.4835 | S30815 |
Stainless Steel 253MA Flanges find extensive use in high-temperature settings like industrial furnaces, kilns, recuperators, burners, heat exchangers, and power station boilers. Their outstanding oxidation and creep resistance make them a top choice for thermal processing units, petrochemical industries, incinerators, and combustion chambers. These flanges are particularly favored in systems that experience frequent thermal cycling, carburizing, and sulfidizing conditions. They are also well-suited for cement plants, waste gas systems, and other environments where mechanical stress and extreme heat are constant challenges.
| Nominal Size | Outside Diameter (OD) | Min. Thickness (T) | RF Dia. (R) | No. of Bolt Holes | Diameter of Holes | Bolt Circle (BC) | SO Bore ID (SB) | WN Bore ID (WB) | Dia. Hub Base (HB) | Dia. of Hub Top (HT) | SO LTH (SL) | WN LTH (WL) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1⁄2 | 3.50 | 0.38 | 1.38 | 4 | 0.62 | 2.38 | 0.88 | 0.62 | 1.19 | 0.84 | 0.56 | 1.81 |
| 3⁄4 | 3.88 | 0.44 | 1.69 | 4 | 0.62 | 2.75 | 1.09 | 0.82 | 1.50 | 1.05 | 0.56 | 2.00 |
| 1 | 4.25 | 0.50 | 2.00 | 4 | 0.62 | 3.12 | 1.36 | 1.05 | 1.94 | 1.32 | 0.62 | 2.12 |
| 11⁄4 | 4.62 | 0.56 | 2.50 | 4 | 0.62 | 3.50 | 1.70 | 1.38 | 2.31 | 1.66 | 0.75 | 2.19 |
| 11⁄2 | 5.00 | 0.62 | 2.88 | 4 | 0.62 | 3.88 | 1.95 | 1.61 | 2.56 | 1.90 | 0.81 | 2.38 |
| 2 | 6.00 | 0.69 | 3.62 | 4 | 0.75 | 4.75 | 2.44 | 2.07 | 3.06 | 2.38 | 0.94 | 2.44 |
| 21⁄2 | 7.00 | 0.81 | 4.12 | 4 | 0.75 | 5.50 | 2.94 | 2.47 | 3.56 | 2.88 | 1.06 | 2.69 |
| 3 | 7.50 | 0.88 | 5.00 | 4 | 0.75 | 6.00 | 3.57 | 3.07 | 4.25 | 3.50 | 1.12 | 2.69 |
| 31⁄2 | 8.50 | 0.88 | 5.50 | 8 | 0.75 | 7.00 | 4.07 | 3.55 | 4.81 | 4.00 | 1.19 | 2.75 |
| 4 | 9.00 | 0.88 | 6.19 | 8 | 0.75 | 7.50 | 4.57 | 4.03 | 5.31 | 4.50 | 1.25 | 2.94 |
| 5 | 10.00 | 0.88 | 7.31 | 8 | 0.88 | 8.50 | 5.66 | 5.05 | 6.44 | 5.56 | 1.38 | 3.44 |
| 6 | 11.00 | 0.94 | 8.50 | 8 | 0.88 | 9.50 | 6.72 | 6.07 | 7.56 | 6.63 | 1.50 | 3.44 |
| 8 | 13.50 | 1.06 | 10.62 | 8 | 0.88 | 11.75 | 8.72 | 7.98 | 9.69 | 8.63 | 1.69 | 3.94 |
| 10 | 16.00 | 1.12 | 12.75 | 12 | 1.00 | 14.25 | 10.88 | 10.02 | 12.00 | 10.75 | 1.88 | 3.94 |
| 12 | 19.00 | 1.19 | 15.00 | 12 | 1.00 | 17.00 | 12.88 | 12.00 | 14.38 | 12.75 | 2.12 | 4.44 |
| 14 | 21.00 | 1.31 | 16.25 | 12 | 1.12 | 18.75 | 14.14 | 13.25 | 15.75 | 14.00 | 2.19 | 4.94 |
| 16 | 23.50 | 1.38 | 18.50 | 16 | 1.12 | 21.25 | 16.16 | 15.25 | 18.00 | 16.00 | 2.44 | 4.94 |
| 18 | 25.00 | 1.50 | 21.00 | 16 | 1.25 | 22.75 | 18.18 | 17.25 | 19.88 | 18.00 | 2.62 | 5.44 |
| 20 | 27.50 | 1.62 | 23.00 | 20 | 1.25 | 25.00 | 20.20 | 19.25 | 22.00 | 20.00 | 2.81 | 5.62 |
| 22 | 29.50 | 1.75 | 25.25 | 20 | 1.38 | 27.25 | 22.22 | 21.25 | 24.25 | 22.00 | 3.07 | 5.82 |
| 24 | 32.00 | 1.81 | 27.25 | 20 | 1.38 | 29.50 | 24.25 | 23.25 | 26.12 | 24.00 | 3.19 | 5.94 |
| Standard | Class | Diameter | Bolt Circle Diameter | Number of Bolts | Bolt Size | Diameter of Bolt Hole |
|---|---|---|---|---|---|---|
| AS4087 | PN14 | 95 | 67 | 4 | M12 | 14 |
| AS 2129 | Table C | 95 | 67 | 4 | 13 | 14 |
| Table D | 95 | 67 | 4 | 13 | 14 | |
| Table E | 95 | 67 | 4 | 13 | 14 | |
| Table F | 95 | 67 | 4 | 13 | 14 | |
| Table H | 114 | 83 | 4 | 16 | 17 | |
| Table J | 114 | 83 | 4 | 16 | 17 | |
| ANSI B16.5 | ANSI 150 | 89 | 60 | 4 | 13 | 16 |
| ANSI 300 | 95 | 67 | 4 | 13 | 16 | |
| ANSI 600 | 95 | 67 | 4 | 13 | 16 | |
| ANSI 900 | 121 | 83 | 4 | 19 | 22 | |
| ANSI 1500 | 121 | 83 | 4 | 19 | 22 | |
| ISO 7005 (DIN) | PN6 | 80 | 55 | 4 | M10 | 11 |
| PN10 | 95 | 65 | 4 | M12 | 14 | |
| PN16 | 95 | 65 | 4 | M12 | 14 | |
| PN20 | 90 | 60.5 | 4 | M14 | 16 | |
| PN25 | 95 | 65 | 4 | M12 | 14 | |
| PN40 | 95 | 65 | 4 | M12 | 14 |
Yes, we offer custom sizes for Stainless Steel 253MA flanges to meet specific project needs. Our team at Veer Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@veerflanges.co.in.
We are renowned for delivering products with precise, accurate dimensions. Each product undergoes thorough testing, both destructive and non-destructive, to ensure quality before being shipped to our customers.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
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