ARK Stainless Inc. is a trusted manufacturer and supplier of premium-quality Alloy Steel Forged Fittings, designed using advanced technology and high-grade alloy materials to provide superior strength, durability, and enhanced performance. These fittings are engineered to meet the stringent demands of various industrial applications, ensuring reliable service in high-pressure and high-temperature conditions.
Our Alloy Steel fittings are crafted from a combination of carbon, nickel, chromium, molybdenum, and other key elements, offering exceptional corrosion resistance, thermal stability, and mechanical properties. These fittings are available in various configurations such as Socket Weld, Threaded, and 90-degree Elbow, designed to serve industries like petrochemical, oil and gas, power generation, pharmaceuticals, and marine. Manufactured in accordance with ASTM A182, these fittings are offered in different sizes, finishes, and pressure ratings to suit the specific needs of the applications they are used in.
| Element | Composition (% by Weight) |
|---|---|
| Carbon (C) | 0.30 - 0.60 |
| Manganese (Mn) | 0.60 - 1.20 |
| Chromium (Cr) | 0.80 - 1.20 |
| Molybdenum (Mo) | 0.15 - 0.25 |
| Nickel (Ni) | 0.40 - 0.90 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
| Silicon (Si) | 0.15 - 0.40 |
| Vanadium (V) | ≤ 0.10 |
| Aluminum (Al) | ≤ 0.10 |
| Property | Value | Property | Value | Property | Value |
|---|---|---|---|---|---|
| Tensile Strength (min) | 70 ksi (485 MPa) | Elongation (min) | 20% in 8 inches (200 mm) | Hardness (max) | HB 255 |
| Yield Strength (min) | 30 ksi (205 MPa) | Impact Strength (min) | 15 ft-lb (20.3 J) at -50°F (-45°C) | Modulus of Elasticity | 29 x 106 psi (200 GPa) |
| Poisson’s Ratio | 0.29 |
Alloy Steel Buttweld Fittings are widely used across various industries such as pharmaceutical, gas processing, chemical and pharmaceutical equipment, offshore oil drilling, heat exchangers, condensers, seawater equipment, petrochemicals, power generation, food processing, paper and pulp industries, rail components, road transportation components, pumps, shafts, and even military applications. These fittings are specifically designed to withstand challenging environments such as high annealing temperatures and chloride environments without deformation. Additionally, they offer resistance to general corrosion types including crevice corrosion, stress corrosion cracking, pitting corrosion, and impact corrosion.
To ensure the highest quality and performance, our Alloy Steel Buttweld Fittings undergo several rigorous tests post-production, including flaring, mechanical, hardness, macro and micro, hydrostatic, radiography, ultrasonic, and flattening tests.
