Rizwan Flanges stands out as a top-notch manufacturer and supplier of high-quality AISI 4140 flanges in Manama, Bahrain. Their products are known for their durability, precision, and impressive performance. With a strong emphasis on engineering excellence, the company produces flanges made from premium alloy steel, perfect for tough industrial settings. Rizwan Flanges caters to vital sectors like oil and gas, petrochemicals, power generation, and heavy machinery, ensuring that customers receive dependable and long-lasting solutions. Their dedication to quality, compliance with international standards, and a customer-first mindset have made them a go-to supplier in Bahrain’s expanding industrial landscape.
AISI 4140 flanges are crafted from chromium-molybdenum alloy steel, featuring around 0.4% carbon, 0.8–1.1% chromium, and 0.15–0.25% molybdenum, which together create a fantastic blend of strength and toughness. These flanges boast remarkable mechanical properties, including high tensile and yield strength, outstanding hardness, and excellent fatigue resistance. They also offer good impact toughness and stability when faced with high temperatures and pressures. Thanks to their reliable machinability and weldability, AISI 4140 flanges are perfect for heavy-duty applications that demand durability and consistent performance.
| 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 |
Rizwan Flanges, a leading supplier in Manama, Bahrain, 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.
You’ll often find AISI 4140 flanges in high-pressure piping systems, drilling equipment, and refinery operations, thanks to their exceptional strength and ability to withstand harsh conditions. They’re particularly well-suited for the oil and gas industry, petrochemical plants, hydraulic systems, and power generation units. In the heavy machinery and automotive sectors, these flanges support components that endure high stress and mechanical loads. Their durability, high-temperature performance, and reliability make AISI 4140 flanges crucial for critical systems that require a long service life and top-notch operational safety.
Yes, we offer custom sizes for AISI 4140 Flanges to meet specific project needs. Our team at Rizwan Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@rizwanflanges.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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