Harsh Metalloys stands out as a reliable manufacturer and supplier of Stainless Steel 253 MA Flanges, based in Mumbai, India. The 253 MA (UNS S30815) is a cutting-edge austenitic stainless steel alloy designed for exceptional high-temperature strength and resistance to oxidation. These flanges are perfect for tough environments where thermal stability and longevity are key. Harsh Metalloys provides a diverse selection of 253 MA flanges—including weld neck, slip-on, blind, socket weld, and threaded types—all crafted to meet global standards like ASTM A182 and ASME B16.5. Our precisely engineered flanges cater to industries such as power generation, petrochemical, furnace, and heat treatment.
Stainless Steel 253 MA Flanges are mainly made up of 20–22% chromium, 10–12% nickel, along with small yet significant amounts of cerium (~0.05%) and nitrogen (~0.15%), which boost their high-temperature performance and oxidation resistance. These flanges boast a tensile strength of around 600 MPa, a yield strength close to 310 MPa, and an elongation of about 40%. They maintain their structural integrity and resist scaling at temperatures up to 1150°C (2100°F). With excellent creep resistance, thermal fatigue strength, and oxidation protection, 253 MA flanges are ideal for extended high-temperature applications.
| Specifications | ASTM A182 / ASME SA182 |
| Flange size range | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
| Flanges Dimensions | ANSI/ ASME B16.5, B16.47 A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Flanges Standard | ANSI Flanges, AWWA Flanges, ASME Flanges, BS 10 Table D Flanges, Table E Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flanges. |
| Pressure Class / Rating | Class 150 LBS, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Flange Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Large Male-Female (LMF), Flat Face (FF), Small Male-Female (SMF), Lap-Joint Face (LJF), Small Tongue, Large Tongue & Groove |
| Specialized manufacturer of | Weld Neck Ring Flanges (WNRF), Slip-On Ring Flanges (SORF), Blind Ring Flanges (BLRF), Socket Weld Ring Flanges (SWRF), Lap Joint Ring Flanges (LJRF), Ring Type Joint Flanges (RTJF), Large Diameter Flanges, Orifice Flanges |
| Grade | C | Mn | Si | S | Fe | Ni | Cr | P | Ce |
| Stainless Steel 253MA | 0.05-0.10 max | 0.80 max | 1.40-2.00 | 0.030 max | Balance | 10.0-12.0 | 20.0-22.0 | 0.040 max | 0.03-0.08 |
| Tensile Strength | Elongation |
| 90,000-114,000 | 2 %F |
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SS 253 MA Socket Weld Flanges provide strong, high-temperature-resistant connections for piping systems. Made from stainless steel, they offer excellent corrosion resistance and durability for demanding industrial applications.
SS 1.4835 Ring Type Joint Flanges are designed for high-pressure and high-temperature applications. Made from durable stainless steel, they offer superior resistance to corrosion and ensure a tight, leak-proof seal.
Stainless Steel 253 MA Spectacle Blind Flanges are durable, high-temperature-resistant components used to block off piping systems. They offer exceptional resistance to corrosion, ensuring reliable performance in harsh industrial environments.
Stainless Steel 253 MA Flanges are a go-to choice for a variety of applications, including furnaces, heat exchangers, kilns, flue gas systems, combustion chambers, and other thermal processing equipment. Thanks to their exceptional heat resistance and strength, they play a crucial role in industries like metallurgy, cement, chemical processing, power generation, and refineries. These flanges really shine in oxidizing and carburizing environments, where standard stainless steels might struggle. You’ll also find 253 MA flanges in boilers, incinerators, and exhaust manifolds. Their ability to handle thermal cycling and high-stress situations guarantees long-lasting performance in high-temperature and corrosive conditions, making them a reliable and durable choice for critical systems.
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