Seamless Alloy Steel Tube
Seamless Alloy Steel Tube Manufacturer & Supplier
At Emirerri Steel, we are a trusted manufacturer, supplier, and exporter of Seamless Alloy Steel Tubes, delivering world-class tubing solutions to industries worldwide. Seamless alloy steel tubes are engineered to withstand extreme conditions of temperature, pressure, and mechanical stress, making them a preferred choice in power generation, petrochemicals, refineries, and heavy engineering applications.
Unlike welded tubes, seamless tubes are produced from solid billets, ensuring uniform structure, excellent dimensional accuracy, and enhanced mechanical strength. When alloyed with elements such as chromium, molybdenum, nickel, vanadium, and manganese, these tubes exhibit improved corrosion resistance, high-temperature strength, and long service life.
ASTM A213 / ASME SA213
ASTM A335 / ASME SA335
ASTM A209 / SA209
ASTM A199 / SA199
ASTM A369 / ASME SA369
Properties & Advantages of Seamless Alloy Steel Tubes
High Strength & Durability – Capable of withstanding high pressures without deformation.
Thermal Resistance – Excellent performance at elevated temperatures in boilers, heat exchangers, and furnaces.
Corrosion & Oxidation Resistance – Alloying elements protect against scaling, pitting, and chemical attack.
Leak-Free Construction – Being seamless, they eliminate the risk of weld failures under extreme conditions.
Dimensional Accuracy – Manufactured to precise tolerances suitable for critical engineering projects.
Versatility – Available in a wide range of grades, sizes, and schedules for diverse applications.
Manufacturing Process
The production of seamless alloy steel tubes at Emirerri Steel involves advanced metallurgical techniques and strict quality control:
Billet Selection – High-quality alloy steel billets are chosen based on the required grade and specification.
Heating & Piercing – Billets are heated in a rotary furnace and pierced to form a hollow shell.
Hot Rolling / Cold Drawing – Tubes are elongated and rolled to achieve required diameter and wall thickness.
Heat Treatment – Normalizing, quenching, and tempering enhance mechanical properties.
Testing & Inspection – Each tube undergoes NDT (ultrasonic, eddy current, hydrostatic test) and dimensional checks.
Finishing – Tubes are straightened, cut, beveled, and surface treated as per customer requirements.
Applications
Power Plants – For boiler tubes, superheater tubes, reheater tubes.
Petrochemical Industry – Heat exchangers, reformer tubes, hydrocarbon processing.
Refineries – Furnace tubes, catalytic cracking units.
Oil & Gas Industry – High-pressure piping, offshore drilling, subsea pipelines.
Automotive & Aerospace – Precision-engineered parts requiring strength-to-weight efficiency.
Mechanical Engineering – Hydraulic cylinders, pressure vessels, heavy machinery.