Alloy Steel Pipes Manufacturer & Exporter
Leoscor Alloy Pipes is a trusted supplier and exporter of high-quality Alloy Steel Pipes, manufactured using advanced technology and modern production equipment. We offer a wide range of alloy steel piping solutions designed to meet the demanding requirements of industries where strength, durability, and reliable performance are essential.
Our Alloy Steel Seamless Pipes are known for their excellent toughness, high yield strength, corrosion resistance, fatigue resistance, and superior wear resistance. These pipes are specially designed to perform effectively under high-pressure and high-temperature conditions, making them suitable for applications such as heat exchangers, boilers, process instrumentation, and general engineering systems.
At Leoscor Alloy Pipes, we provide customized surface finishing options for alloy steel pipes, including black painting, galvanized coating, anti-corrosion oil coating, and other finishes based on specific customer requirements. Our pipes are manufactured according to international quality standards to ensure consistent performance and long service life.
Our Alloy Steel Pipes are widely used in industries such as oil refineries, petrochemical plants, cement industries, automotive sectors, power plants, and heavy engineering applications. These pipes are designed to withstand challenging operating conditions while maintaining excellent mechanical properties.
We also supply high-quality Alloy Steel Welded Pipes, which contain alloying elements such as nickel, chromium, molybdenum, vanadium, tungsten, and silicon to enhance strength, toughness, and resistance to extreme environments. These pipes are available in different sizes, wall thicknesses, and end finishes to meet various industrial requirements.
Our range of Alloy Steel ERW Pipes is available in multiple shapes and forms, including round, square, rectangular, hollow, oval, and polished finishes. We also offer Alloy Steel EFW Pipes, which provide excellent fitment, reliable construction, and long-lasting performance for industrial piping systems.
With a strong focus on quality, precision, and customer satisfaction, Leoscor Alloy Pipes has established itself as a reliable Alloy Steel Pipes Supplier and Exporter. Contact us for customized alloy steel pipe solutions and competitive pricing for your industrial requirements.
Why Buy Alloy Steel Pipes from Leoscor Alloy Pipes
Leoscor Alloy Pipes is a trusted stockist, distributor, and supplier of Alloy Steel Pipes from India, with decades of experience serving global industries. Our focus on quality, reliable supply, and customer satisfaction ensures dependable piping solutions.
Key advantages of choosing us:
- Extensive inventory of standard sizes and grades
- Reliable sourcing from reputed manufacturers
- Strict quality control and experienced professionals
- Strong logistics and timely delivery support
- Modern infrastructure with large storage capacity
- ISO 9001:2015 certified company
Contact us for Alloy Steel Pipes–info@leoscoralloypipes.com
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What we hold in stock
| Specifications | Details |
|---|---|
| Standards | ASTM A335 (P5, P9, P11, P22, P91), ASTM A519 (AISI 4130), matching ASME SA specifications |
| Size Range | NPS 1/2″ to 24″ (15 mm to 600 mm NB) |
| Schedules | SCH 40, 80, 100, 120, 160, XXS |
| Forms | Seamless, ERW, EFW |
| Lengths | Single Random (5 to 7 m), Double Random (8 to 13 m), Cut to Length |
| End Finish | Plain End, Bevelled |
| Surface | Black, Painted, Anti-corrosion Oil, Galvanised on request |
| Certification | Mill Test Certificate as Standard, EN 10204 3.1/3.2 on Request |
OUR RANGE OF ALLOY STEEL PIPES
Choosing the right alloy steel grade
P5 to P91 are selected by service temperature and required creep strength. AISI 4130 is selected for a completely different reason — treat it as a separate decision, not a sixth option on the same list.
| Grade | Composition | Pick it when |
|---|---|---|
| P11 | 1 to 1.5% Cr, 0.5% Mo | Moderate elevated temperature, up to about 540°C. Entry point of the chrome-moly family. |
| P22 | 2 to 2.5% Cr, 1% Mo | Boiler superheater and reheader piping, power plant service up to about 580°C. The most widely used grade in this range. |
| P5 | 4 to 6% Cr, 0.5% Mo | Refinery and catalytic cracking service where higher chromium is needed for oxidation resistance, up to about 600°C. |
| P9 | 8 to 10% Cr, 1% Mo | Above P5’s range where more chromium is needed for oxidation resistance at similar or slightly higher temperatures. |
| P91 | 9% Cr, 1% Mo, plus V, Nb, N | Ultra-supercritical power plant service up to about 600 to 650°C. Higher allowable stress than P22 means a thinner wall for the same rating — the grade to specify when wall thickness and weight matter as much as temperature. |
| AISI 4130 | Cr-Mo, heat-treatable | Not a temperature-service question. Choose this for strength-to-weight ratio in structural or mechanical applications — drill pipe, hydraulic lines, tubing that needs to be heat-treated after fabrication. |
Sizes and wall thicknesses
P5 to P91 alloy steel pipe follows the same ASME B36.10M schedules as carbon steel. Density across the P-grades is close to 7.75 to 7.85 g/cm³: kg per metre = (OD minus WT) x WT x 0.0246, both dimensions in mm.
| NPS | OD (mm) | SCH 40 | SCH 80 | SCH 160 |
|---|---|---|---|---|
| 2″ | 60.3 | 3.91 | 5.54 | 8.74 |
| 4″ | 114.3 | 6.02 | 8.56 | 13.49 |
| 6″ | 168.3 | 7.11 | 10.97 | 18.26 |
| 8″ | 219.1 | 8.18 | 12.70 | 23.01 |