Mcneil Instruments is an established manufacturer, supplier, stockist, and exporter of Carbon Steel ASTM A105 Tube Fittings » , producing precision-machined components for high-pressure hydraulic, process, and industrial systems. ASTM A105 tube fittings are widely selected for demanding applications in oil and gas facilities, refineries, petrochemical plants, power generation units, and heavy engineering installations. Manufactured from carbon steel, ASTM A105 fittings provide a combination of tensile strength, hardness, wear resistance, and dependable performance under elevated pressure and temperature. These characteristics make them suitable for steam lines, process piping, compressor systems, hydraulic equipment, and industrial instrumentation networks