Lukies Flanges stands out as a top-notch manufacturer and supplier of AISI 4140 flanges in Midland, providing high-quality alloy steel products tailored for high-performance needs. With state-of-the-art manufacturing facilities and rigorous quality control measures, Lukies Flanges ensures that every precision-engineered flange meets international standards like ASTM, ASME, and ANSI. AISI 4140 flanges are well-known for their remarkable mechanical strength, durability, and resistance to wear and stress. The company caters to various industries, including oil and gas, petrochemical, power generation, and heavy machinery, guaranteeing that each flange delivers outstanding reliability even in high-pressure and high-temperature environments.
AISI 4140 flanges are crafted from a chromium-molybdenum alloy steel that contains about 0.38–0.43% carbon, 0.75–1.00% chromium, 0.15–0.25% molybdenum, and 0.75–1.00% manganese. This distinctive alloy mix endows AISI 4140 flanges with remarkable toughness, hardness, and wear resistance. They boast a tensile strength of roughly 655 MPa and a yield strength close to 415 MPa, along with impressive fatigue and impact resistance. The alloy retains its strength even at high temperatures and offers excellent machinability and weldability, making it perfect for heavy-duty industrial applications where reliability, precision, and durability are crucial.
| Size Chart | 1/2″ to 48″ |
|---|---|
| Pressure Rating | Class 150, 600, 300, 1500, 900, 2500 LBS |
| Pressure Calculation in DIN | 6/ 16/ 10/ 40/ 25Bar / PN6 PN16 PN10 PN40 PN25 PN64 |
| JIS | 5K, 16 K, 10 K, 30 K, 20 K, 63 K, 40 K |
| UNI | 6/ 16/ 10/ 40/ 25Bar |
| EN | 6/ 16/ 10/ 40/ 25Bar |
| Flange Face Type | Lap-Joint Face, Large Male-Female, Raised Face, Flat Face, Small Tongue, Small Male-Female, Ring Type Joint, Large Tongue & Groove Flanges manufacturer and Supplier |
| Flanges Marking | All Flanges are marked as follows: Supplier or Manufacturer’s Name, Size, Class, Bore, Dimension, Material, Heat No. Or according to the customer’s request. |
| Element | Content |
|---|---|
| Chromium | 0.80 Tp 1.10 |
| Manganese | 0.75 Tp 1.0 |
| Silicon | 0.15 To 0.30 |
| Carbon | 0.380 To 0.430 |
| Molybdenum | 0.15 To 0.25 |
| Sulfur | 0.040 |
| Phosphorous | 0.035 |
| Iron | Balance |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 655 MPa | 95000 psi |
| Bulk modulus | 140 GPa | 20300 ksi |
| Yield strength | 415 MPa | 60200 psi |
| Shear modulus | 80 GPa | 11600 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Elongation at break (in 50 mm) | 25.70% | 25.70% |
| Hardness, Knoop | 219 | 219 |
| Hardness, Rockwell B | 92 | 92 |
| Hardness, Brinell | 197 | 197 |
| Hardness, Rockwell C | 13 | 13 |
| Machinability | 65 | 65 |
| Hardness, Vickers | 207 | 207 |
Lukies Flanges, a leading supplier in Kinshasa, Congo, offers an extensive selection of AISI 4140 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.
AISI 4140 flanges find extensive use in oil and gas refineries, power plants, petrochemical facilities, as well as in the automotive and aerospace sectors. Their exceptional strength and heat resistance make them perfect for connecting pipes, valves, pumps, and pressure vessels that operate under extreme conditions. You’ll often see them in drilling equipment, hydraulic systems, heavy machinery, and high-pressure pipelines. In the automotive and aerospace industries, AISI 4140 flanges are prized for their load-bearing capabilities and resistance to fatigue. Their blend of mechanical strength and durability makes them a go-to choice for demanding applications.
Yes, we offer custom sizes for AISI 4140 Flanges to meet specific project needs. Our team at Lukies Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@lukiesflanges.com.
| STANDARD | UNS | WERKSTOFF NR. |
| AISI 4140 | G41400 | 1.7225 |
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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