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Overview:
Namah Super Alloys is a trusted manufacturer, supplier, stockist, and exporter of premium Nickel Alloy and High-Performance Alloy products. With a commitment to quality and precision, we specialize in a wide range of products including Rods (Bright Bars), Sheets & Plates, Pipes & Tubes, Pipe Fittings (Flanges, Elbows, Tees, Reducers, Nipples, etc.), Fasteners (Nuts, Bolts, Studs), CNC Components, and Sheet, Plate & Coils.
Our materials are renowned for their exceptional strength, corrosion resistance, and thermal stability, making them suitable for critical applications across industries such as aerospace, oil & gas, petrochemicals, marine, power generation, and defense. We offer custom and standard sizes, ensuring optimal performance in both high-pressure and corrosive environments. With superior machinability, weldability, and dimensional accuracy, Namah Super Alloys delivers components that meet the most demanding international standards and client specifications.
Alloy 625 is a nickel-chromium-molybdenum alloy used for its high strength, excellent fabricability and outstanding corrosion resistance. Service temperatures can range from cryogenic to 980°C (1800°F). Alloy 625 strength is derived from the solid solution strengthening effect of molybdenum and niobium on its nickel-chromium matrix.
Thus, precipitation-hardening treatments are not required. This combination of elements is also responsible for superior resistance to a wide range of corrosive environments of unusual severity, as well as to high-temperature effects such as oxidation and carburization.
| AVAILABLE TUBE PRODUCT FORMS |
|---|
| Straight Tube | Straight Pipe | U - Tube | Coiled Tube |
| TYPICAL MANUFACTURING SPECIFICATIONS | |
|---|---|
| ASME SB-161 | ASTM B622/ASME SB622 |
| ASME SB-163 | ASTM B725/ASME SB725 |
| ASME SB-775 | ASTM B829/ASME SB829 |
| TYPICAL APPLICATIONS |
|---|
| WELLHEAD COMPONENTS |
| SHEATHING |
| DOWNHOLE EQUIPMENT FOR CORROSIVE / SOUR SERVICE |
| REACTOR CORE |
| CONTROL ROD COMPONENTS |
| GAS PIPELINE CONTROL LINES |
| HEAT EXCHANGERS |
| OIL REFINING |
| CHEMICAL PROCESSING |
| CONTROL AND INSTRUMENTATION TUBES |
| INDUSTRIES PREDOMINANTLY USING THIS GRADE | |
|---|---|
| CHEMICAL PROCESSES | |
| OIL AND GAS | |
| NUCLEAR AND POWER | |
Typical Specification
| Element | C | Si | Mn | P | S | Al | Cr | Fe | Mo | Nb | Ni | Ti |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | - | - | - | - | - | - | 20 | - | 8 | 3.150 | Balance | - |
| Max | 0.1 | 0.5 | 0.5 | 0.015 | 0.015 | 0.4 | 23 | 5 | 10 | 4.150 | Balance | 0.40 |
| PHYSICAL PROPERTIES (Room Temperature) | ||
|---|---|---|
| Specific Heat (0-100°C) | 460 | J.kg-1.°K-1 |
| Thermal Conductivity | 14.8 | W.m -1.°K-1 |
| Thermal Expansion | 12.4 | mm/m/°C |
| Modulus Elasticity | 207 | GPa |
| Electrical Resistivity | 10.3 | Ohm-cm |
| Density | 8.42 | g/cm3 |
| MECHANICAL PROPERTIES | ||||
|---|---|---|---|---|
| Temper | Annealed (Grade 1) | Solution-annealed (Grade 2) | ||
| Tensile Rm | 120 | ksi (min) | 100 | ksi (min) |
| Tensile Rm | 827 | MPa (min) | 690 | MPa (min) |
| R.p. 0.2% Yield | 60 | ksi (min) | 40 | ksi (min) |
| R.p. 0.2% Yield | 414 | MPa (min) | 276 | MPa (min) |
| Elongation (2” or 4D gl) | 30 | % (min) | 30 | % (min) |