Veer Flanges stands out as a top manufacturer and supplier of Low Temperature Carbon Steel LF6 Flanges right in Kolkata, India. We pride ourselves on delivering high-quality flange solutions that are designed for dependable performance in cryogenic and low-temperature settings. Crafted from a blend of carbon-manganese-silicon steel with a touch of nickel, our LF6 flanges meet ASTM A350 and ASME B16.5 standards, ensuring they offer optimal strength and notch toughness even in sub-zero conditions. These flanges find their place in refineries, LNG processing plants, chemical industries, and oil & gas pipelines, where temperature changes require materials that can hold up under pressure. At Veer Flanges, we provide LF6 flanges in a variety of sizes, pressure ratings, and face types.
LF6 flanges are made up of carbon (≤0.30%), manganese (0.60–1.35%), silicon (0.15–0.30%), nickel (0.40–1.00%), along with trace amounts of phosphorus and sulfur. They boast a tensile strength ranging from 485–655 MPa, a minimum yield strength of 250 MPa, and impressive impact toughness at -46°C (-50°F) or lower. Typically, LF6 is normalized and tempered to enhance its mechanical performance. The inclusion of nickel not only boosts toughness but also improves corrosion resistance, making these flanges perfect for low-temperature service environments where structural reliability and ductility are crucial.
| Material Specification Of : | ASTM A350 LF6 Flanges |
|---|---|
| South African Standard Flanges | SANSflanges And SABS flanges |
| Surface Finish | smooth, concentric serrated, stock |
| Gaskets Types | Full Face Gasket Flat Ring Gasket Metallic Ring Gakset |
| Advantages Of Pipe Flange | Used to Connect Pipe System Easy Repair Pipe System Assembled Without Welding |
| Standard Cover : | pressure ratings & temperature ratings, materials, marking, dimensions, weight, tolerances, testing |
| Contact Faces | RTJ (Ring Type Joint), FF (Flat Face), RF (Raised Face), T/G (Tongue And Groove ), M/F (Male And Female) |
| Size Chart | Normal Pipe Size 1/2 to NPS 24″ |
| Thickness | Normal Pipe Size ≤ 18 |
| Bore Diameter | Normal Pipe ≤ 10 |
| Flanges Standards | EN 1092-1, JIS, ASME B16.5, ASME B16.47 type A, UNI, DIN |
| Pressure Rating | Class 150 To Class 2500 |
| High Temperature | Above 200°C (400°F) For Class 150 Or Above 400°C (750°F) |
| Low Temperature | Above -29 Degree C (−20°F) |
| Common Types Of Flanges: | Slip On (SORF), Weld Neck (WNRF), Blind (BLRF), Lap Joint (Loose), Threaded (NPT), Socket-Weld (SWRF) |
| Special Types Of Flanges : | Nipoflange, Elboflange, Latroflange, Swivel Flange, Expanding Flange, Reducing Flange, Weldoflange |
| Marking Standard | Name of Manufacturer Schedule Type of Flange Facing Nominal Pipe Size Pressure Class ASME B16 Designation |
| Bolt Type | high strength bolts medium strength bolts low strength bolts |
| European Standard Flanges | JIS B2220 Flanges (5k to 30k) and KS1503 flanges |
| Russian-Standard Flanges | GOST 12820 / 12821-80, DIN, UNI, EN 1092-1 |
| 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 |
| Grade/Class | Tensile Strength | Yield Strength, minimum | Elongation, minimum | Hardness, maximum | ||
| ksi | MPa | ksi | MPa | % | HBW | |
| LTCS LF6 CL1 | 66–91 | 455–630 | 52 | 360 | 22 | 197 |
| LTCS LF6 CL2 | 75–100 | 515–690 | 60 | 415 | 20 | 197 |
| LTCS LF6 CL3 | 75–100 | 515–690 | 60 | 415 | 20 | 197 |
Veer Flanges, a leading supplier in Kolkata, India, offers an extensive selection of Low Temperature Carbon Steel LF6 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 LF6 Flanges are widely utilized in low-temperature applications across oil & gas transmission, LNG storage and transport, petrochemical plants, refrigeration systems, and power generation facilities. They are particularly well-suited for connections involving valves, pipes, pumps, and pressure vessels, where both impact resistance and dimensional stability are vital. LF6 flanges are the go-to choice for hydrocarbon processing, cryogenic service, and process piping that operates at sub-zero temperatures. Their high strength, leak-tight sealing capabilities, and versatility for welding or bolting make them essential in critical systems where temperature fluctuations are a constant concern.
Yes, we offer custom sizes for Low Temperature Carbon Steel LF6 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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