Abulaila Flanges is a reputable manufacturer and supplier in Amman, Jordan, specializing in high‑strength AISI 4140 flanges for demanding industrial, oil and gas, and power generation applications. The company focuses on delivering precision‑engineered, heat‑treatable alloy steel flanges that provide exceptional strength, toughness, and wear resistance for critical piping systems. Supported by flexible sizes, adherence to international standards, and responsive service, Abulaila Flanges helps EPC contractors, fabricators, and maintenance teams source reliable AISI 4140 flanges for high‑pressure, high‑temperature, and cyclic loading environments.
AISI 4140 is a chromium‑molybdenum low‑alloy steel with typical composition of about 0.38–0.43% carbon, 0.75–1.00% chromium, 0.15–0.25% molybdenum, plus manganese and silicon. This alloy offers excellent hardenability, high tensile strength (often above 655 MPa), good yield strength, and superior fatigue and impact resistance when properly heat treated. AISI 4140 flanges are also weldable with appropriate procedures and post‑weld heat treatment, making them suitable for heavy‑duty, safety‑critical connections.
| 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 |
Abulaila Flanges, a leading supplier in Amman, Jordan, 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 are widely used in applications requiring robust performance under severe conditions, such as wellhead equipment, manifolds, choke and kill lines, drilling and completion tools, and high‑pressure process piping in oil and gas, petrochemical, and power plants. They are also preferred for hydraulic systems, heavy machinery, and structural joints where high strength, toughness, and wear resistance are essential. Proper heat treatment and inspection ensure these flanges deliver reliable, long‑term service in critical and safety‑sensitive environments.
Yes, we offer custom sizes for AISI 4140 Flanges to meet specific project needs. Our team at Abulaila Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@abulailaflanges.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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