Alloy Steel Welded Pipes Manufacturer and Supplier in India
The Alloy Steel Welded Pipe has a special ability to endure high temperature and high pressure, thus providing high strength and durability. These pipes are fabricated by welding high-quality alloy steel plates/ coiled. These pipes contain high percentages of chromium and molybdenum and possess excellent creep strength, oxidation resistance, and high service life at elevated temperatures above 500 degrees. They are found extensively in power plants, in refineries, in petrochemical plants, in boilers, in heat exchangers, and in process piping. Alloy steel welded pipes are manufactured in a variety of sizes
(from 1/8" NB to 36" NB) and meet international standards for dimensional accuracy and performance. Amardeep Steel is a trusted Alloy Steel Welded Pipes manufacturer and supplier in India, providing ASTM/ASME compliant products in various grades, sizes and schedules with strict quality testing, competitive pricing and worldwide exports.
Technical Data
Specifications of Alloy Steel Welded Pipes
| Parameter | Specification Details |
|---|---|
| Specification | ASTM A691 / ASME SA691 |
| Dimensions | ASTM, ASME, and API |
| Outside Diameter | 6 mm – 2500 mm |
| Size | 1/8" NB to 30" NB |
| Wall Thickness | 0.3 mm – 50 mm (WT: 1 mm – 200 mm) |
| Schedules | SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules |
| Type | ERW / Welded Pipes |
| Form | Round, Square, Rectangular, Oval, Hydraulic, etc. |
| Length | Single Random, Double Random & Required Length |
| End Finish | Plain End, Beveled End, Threaded |
| Inspection & Test Reports | Mill Test Certificates (EN 10204 3.1), Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third-Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Reports, Non-Destructive Test Reports |
| Packing | Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per customer request |
| Customization | Custom sizes and specifications manufactured on request |
Chemical Compositions of Alloy Steel Welded Pipes
| ASTM A335 Low-Alloy Steel (Grades) | UNS equivalent | C≤ | Mn | P≤ | S≤ | Si≤ | Cr | Mo |
|---|---|---|---|---|---|---|---|---|
| P1 | K11522 | 0.10 ~ 0.20 | 0.30 ~ 0.80 | 0.025 | 0.025 | 0.10 ~ 0.50 | – | 0.44 ~ 0.65 |
| P2 | K11547 | 0.10 ~ 0.20 | 0.30 ~ 0.61 | 0.025 | 0.025 | 0.10 ~ 0.30 | 0.50 ~ 0.81 | 0.44 ~ 0.65 |
| P5 | K41545 | 0.15 | 0.30 ~ 0.60 | 0.025 | 0.025 | 0.5 | 4.00 ~ 6.00 | 0.44 ~ 0.65 |
| P5b | K51545 | 0.15 | 0.30 ~ 0.60 | 0.025 | 0.025 | 1.00 ~ 2.00 | 4.00 ~ 6.00 | 0.44 ~ 0.65 |
| P5c | K41245 | 0.12 | 0.30 ~ 0.60 | 0.025 | 0.025 | 0.5 | 4.00 ~ 6.00 | 0.44 ~ 0.65 |
| P9 | S50400 | 0.15 | 0.30 ~ 0.60 | 0.025 | 0.025 | 0.50 ~ 1.00 | 8.00 ~ 10.00 | 0.44 ~ 0.65 |
| P11 | K11597 | 0.05 ~ 0.15 | 0.30 ~ 0.61 | 0.025 | 0.025 | 0.50 ~ 1.00 | 1.00 ~ 1.50 | 0.44 ~ 0.65 |
| P12 | K11562 | 0.05 ~ 0.15 | 0.30 ~ 0.60 | 0.025 | 0.025 | 0.5 | 0.80 ~ 1.25 | 0.44 ~ 0.65 |
| P15 | K11578 | 0.05 ~ 0.15 | 0.30 ~ 0.60 | 0.025 | 0.025 | 1.15 ~ 1.65 | – | 0.44 ~ 0.65 |
| P21 | K31545 | 0.05 ~ 0.15 | 0.30 ~ 0.60 | 0.025 | 0.025 | 0.5 | 2.65 ~ 3.35 | 0.80 ~ 1.60 |
| P22 | K21590 | 0.05 ~ 0.15 | 0.30 ~ 0.60 | 0.025 | 0.025 | 0.5 | 1.90 ~ 2.60 | 0.87 ~ 1.13 |
| P91 | K91560 | 0.08 ~ 0.12 | 0.30 ~ 0.60 | 0.02 | 0.01 | 0.20 ~ 0.50 | 8.00 ~ 9.50 | 0.85 ~ 1.05 |
| P92 | K92460 | 0.07 ~ 0.13 | 0.30 ~ 0.60 | 0.02 | 0.01 | 0.5 | 8.50 ~ 9.50 | 0.30 ~ 0.60 |
Different Types Alloy Steel Welded Pipes
Alloy Steel EFW Pipes
Alloy Steel High Pressure Pipes
Alloy Steel Welded Pipes
Applications and Industrial Uses of Alloy Steel Welded Pipes
- Petrochemical Processing Plants
- Oil & Gas Exploration and Processing
- Chemical Manufacturing Industry
- Thermal and Nuclear Power Plants
- Energy Generation and Utility Sector
- Pharmaceutical and Biotechnology Industry
- Pulp, Paper, and Packaging Industry
- Food and Beverage Processing Industry
Frequently Asked Questions
1. What are Alloy Steel Welded Pipes?
Alloy Steel Welded Pipes are pipes manufactured by welding alloy steel plates or coils. They offer excellent strength, heat resistance, and corrosion resistance for demanding industrial applications.
2. What are Alloy Steel Welded Pipes used for?
Alloy Steel Welded Pipes are used in power plants, oil and gas, petrochemical, chemical processing, refineries, boilers, heat exchangers, and high-temperature piping systems.
3. What is the difference between alloy steel welded and seamless pipes?
Alloy Steel Welded Pipes are made by welding steel plates or coils, while seamless pipes are manufactured without a weld seam. Seamless pipes are generally preferred for extremely high-pressure applications, whereas welded pipes are more economical for many industrial uses.
4. What is the maximum operating temperature of Alloy Steel Welded Pipes?
The maximum operating temperature depends on the alloy grade, but many Chrome Moly Alloy Steel Welded Pipes can operate reliably at temperatures exceeding 500°C (932°F).
5. Are Alloy Steel Welded Pipes suitable for high-pressure applications?
Yes. Alloy Steel Welded Pipes are designed for high-pressure and high-temperature service and are widely used in boilers, steam pipelines, power plants, and petrochemical industries when manufactured to the appropriate ASTM or ASME standards.
