Veer Flanges is a well-respected manufacturer and supplier of Low Temperature Carbon Steel LF3 Flanges, proudly based in Kolkata, India. They specialize in providing high-performance flange solutions specifically designed for cryogenic and sub-zero temperature applications. LF3 is a unique blend of carbon, manganese, and silicon steel that boasts exceptional impact toughness and corrosion resistance in chilly environments. These flanges are crafted according to ASTM A350, ASME B16.5, and other relevant standards, making them perfect for low-temperature pressure systems across various industries. Renowned for their outstanding notch toughness, weldability, and mechanical strength, LF3 flanges find extensive use in LNG facilities, refineries, petrochemical plants, and gas processing systems.
LF3 flanges are made up of carbon (≤0.20%), manganese (0.60–1.35%), silicon (0.15–0.35%), nickel (0.40–1.00%), along with trace elements like phosphorus and sulfur. The inclusion of nickel significantly boosts their low-temperature toughness and corrosion resistance. These flanges deliver a tensile strength ranging from 485 to 655 MPa, a yield strength of at least 250 MPa, and maintain Charpy impact toughness at -101°C (-150°F). Typically, LF3 materials undergo quenching and tempering or normalization to achieve the desired mechanical properties, making them perfect for pressure-retaining components in cold environments.
| Dimension | ANSI/ASME B16.5, B 16.47 Series A & B, EN-1092, BS4504, BS 10, B16.48, DIN, etc. |
| Standard | ASTM A350 LF3 Low Temperature Flange / LTCS Flange / LF1, LF3 CL1/CL2 |
| Size | 1/2″– 24″ |
| Type | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc |
| Class | 150#, 300#, 600#, 900#, 1500# & 2500# |
| Element | Composition |
|---|---|
| Carbon, maximum | 0.20 maximum |
| Manganese | 0.90 maximum |
| Phosphorus, maximum | 0.035 maximum |
| Sulfur, maximum | 0.040 maximum |
| Silicon [Note A] | 0.20–0.35 |
| Nickel | 3.3–3.7 |
| Chromium | 0.30 maximum [Note C] |
| Molybdenum | 0.12 maximum [Note C] |
| Copper | 0.40 maximum |
| Columbium | 0.02 maximum |
| Vanadium | 0.03 maximum |
Tensile Strength, minimum: | 70,000 psi (485 MPa] |
Minimum. Yield Point: | 36,000 psi [250 MPa] |
Reduction of area, minimum: | 30% minimum |
Hardness, HB, maximum | 187 |
Veer Flanges, a leading supplier in Kolkata, India, offers an extensive selection of Low Temperature Carbon Steel LF3 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.
Low Temperature Carbon Steel LF3 Flanges are perfectly suited for cryogenic and low-temperature applications across industries like oil & gas, LNG processing, refrigeration, petrochemical, offshore drilling, and chemical production. They excel in pipeline systems, storage tanks, heat exchangers, and pressure vessels where exceptional toughness is essential at temperatures below -100°C. LF3 flanges are utilized in both welded and bolted flange connections, ensuring leak-proof performance even under extreme thermal stress. Their enhanced corrosion resistance, weldability, and reliability in tough conditions make them the go-to choice for critical cold service applications.
Yes, we offer custom sizes for Low Temperature Carbon Steel LF3 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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