Carbon Steel Seamless Pipes and Tubes Supplier
Amardeep Steel Centre is India's leading carbon steel seamless pipes and tubes supplier and exporter based in Mumbai, India. We provide carbon steel seamless pipes and tubes to refinery, power plant, petrochemical and pipeline projects in 60 countries. We stock ASTM A106 Grade B, ASTM A106 Grade C, ASME SA106, ASTM A53 Grade B, API 5L Grade B through X70, and ASTM A333 Grade 6 for low temperatures services, all made without a longitudinal seam for best pressure integrity. Seamless pipes are not subject to weld seam, so codes such as ASME B31.1 Power Piping and ASME B31.3 Process Piping require them to be used in Class 1 high pressure and high temperature lines. ERW pipes are suitable for low pressure structural applications, but they cannot be replaced easily in these service applications.
Table of Contents
- Carbon Steel Seamless Pipes and Tubes Supplier
- What is Carbon Steel Seamless Pipe?
- Carbon Steel Seamless Pipes and Tubes Specifications
- Chemical Composition of Seamless Carbon Steel Pipe
- Dimension Tolerance of CS Seamless Pipe
- Manufacturing Process of Seamless Carbon Steel Pipe
- Applications of Carbon Steel Seamless Pipes and Tubes
- Why Choose Us for Carbon Steel Seamless Pipes and Tubes
- Supply Forms, Size Range, and Inspection for Carbon Steel Seamless Pipes
- Available Grades of Carbon Steel Seamless Pipes and Tubes
- Further Reading: Technical Guides and Blogs
- Frequently Asked Questions (FAQ)
What is Carbon Steel Seamless Pipe?
A carbon steel seamless pipe exists as a single continuous piece of carbon steel material which lacks welding or joining seams. The seamless construction makescarbon steel pipesmore durable and stronger than welded pipes. Carbon steel seamless pipe finds wide application in manufacturing because it offers corrosion resistance along with chemical stability and good formability at a reasonable cost and easy fabrication capabilities.
The Sch 40 Seamless Carbon Steel Pipeconsists of carbon steel material which follows a 40 schedule. The seamless structure produces a pipe with reduced absolute roughness. The pipe shows easy installation features together with medium pressure capabilities and smooth operation. The manufacturing pipes are available with different surface finishes and polishing options. Our inventory includes 16" SCH 40 Carbon Steel Pipe alongside SCH 160 Carbon Steel Pipe and SCH 80 Carbon Steel PipeandSCH 10 Carbon Steel Pipe.
Need Carbon Steel Seamless Pipes Fast?
We maintain ready stock of Carbon Steel Seamless and Welded Pipes & Tubes in multiple sizes, schedules, and specifications for industrial and export requirements. Third-party inspection, mill test certificates, and prompt delivery available.
Request a QuoteCarbon Steel Seamless Pipes and Tubes Specifications
| Standard | ASTM A53, A106, API 5L, A179, A192, A210, A519, DIN2391, 2448/1629 /1630, etc |
|---|---|
| ASME Equivalent | ASME SA106 |
| ASME Equivalent | ASME SA53 |
| Material | Gr. A, Gr. B, ST52, etc |
| Size | 10.3- 610mm OD, 1.0-40mm Wall Thickness, 12000mm longest length |
Chemical Composition of Seamless Carbon Steel Pipe
| Elements | Composition % |
|---|---|
| Carbon (C) | 0.10% to 0.30% |
| Manganese (Mn) | 0.30% to 1.65% |
| Phosphorus (P) | 0.04% (max) |
| Sulfur (S) | 0.05% (max) |
| Silicon (Si) | 0.10% to 0.60% |
| Iron (Fe) | The balance |
Dimension Tolerance of CS Seamless Pipe
| TYPE | OD | Thickness |
|---|---|---|
| SEAMLESS | 1/4 inch - 36 inch | 1.25mm - 50mm |
| ERW | 1/8 inch - 24 inch | Max 26.5mm |
| LSAW | 219mm - 3120mm | 3mm - 25mm |
| SSAW | 16 inch - 64 inch | 3mm - 25mm |
Manufacturing Process Of Seamless Carbon Steel Pipe
The production of seamless carbon steel pipe occurs through pipe mills which process billets and coils. Within the manufacturing process a solid billet undergoes heating as the stretching operation uses mandrels to create uniform weld-free pipes with defined diameter and wall thickness. The manufacturing process depends on four main methods which the mill selects based on its production capabilities and product requirements.
Application of Carbon Steel Seamless Pipes and Tubes
Carbon Steel Seamless Pipes and Tubes are extensively applied in the nuclear device, gas conveyance, petrochemical, shipbuilding and boiler industries:
- Oil and Gas Pipelines: API 5L Grade B through X70 seamless pipes are the standard specification for onshore and offshore transmission lines, gathering lines, and injection systems.
- Boilers and Power Generation: ASTM A106 Gr B/C and ASME SA106 seamless pipes are the primary material for high-pressure steam headers, superheater tubes, and economiser circuits. IBR approved grades are also stocked.
- Petrochemical Refineries: Process piping in hydrocracking and reforming units operates at high pressures. ASTM A106 Gr B seamless is specified by ASME B31.3 for these lines.
- Heat Exchangers: Heat exchanger tubes are used extensively in shell and tube configurations for cooling water and process fluid service.
- Structural and Pressure Vessel Service: Seamless carbon steel pipes are used in structural columns and pressure vessel nozzles where dimensional accuracy is required.
- Low-Temperature Service: ASTM A333 Grade 6 seamless pipes are mandated for cryogenic pipelines and LNG plant piping operating as low as -50°C.
Why Choose Us for Carbon Steel Seamless Pipes and Tubes
At Amardeep Steel Center, we are a leading supplier of carbon steel seamless pipes and tubes in India. Our carbon steel seamless pipes and tubes are manufactured to the highest industry standards, ensuring superior strength, resistance to corrosion, and long-lasting performance. We provide a wide range of carbon steel seamless pipes and tubes in various specifications and sizes to meet your exact needs. Choose us for top-quality carbon steel seamless pipes and tubes for your project requirements.
Supply Forms, Size Range, and Inspection for Carbon Steel Seamless Pipes
We maintain comprehensive ready stock and can arrange production runs for non-standard sizes. All material is traceable to origin with mill test certificates per EN 10204 3.1 or 3.2.
| Specification | Details |
|---|---|
| Outer Diameter Range | 1/8 inch NPS (10.3 mm OD) to 24 inch NPS (609.6 mm OD) per ASME B36.10M |
| Wall Thickness | Schedule 10, 20, 30, 40, 60, 80, 100, 120, 140, 160, STD, XS, XXS |
| Standard Lengths | 5.8 m, 6.0 m, 6.4 m, 11.8 m, 12.0 m random or fixed per order |
| End Preparation | Plain end (PE), bevelled end (BE) per ASME B16.25, or threaded and coupled (TC) |
| Surface Finish | Hot finished (black), cold drawn seamless (CDS), or pickled and oiled |
| Test Certificates | EN 10204 3.1 standard; 3.2 (third-party witness) on request; NACE MR0175 compliant grades available |
| Special Inspection | IBR (Indian Boiler Regulation), PED 2014/68/EU, NACE MR0175/ISO 15156, Lloyds, BV, DNV, SGS, TUV |
| Marking and Traceability | Heat number, grade, schedule, standard, and manufacturer mark stencilled on each length |
Available Grades Carbon Steel Seamless Pipes and Tubes
Amardeep Steel supplies the full range of carbon steel seamless pipe grades. Select the grade card below to navigate to the dedicated specification page with full chemical, mechanical, and dimensional data.
|
Grade |
Primary Use and Service |
|---|---|
|
High-temperature seamless service; standard boiler, refinery and power plant pipe. ASME equivalent: SA106 Gr B |
|
|
Higher strength version of A106; used where tensile requirements exceed Gr B capability |
|
|
General purpose seamless and welded black or hot-dipped galvanised pipe. ASME equivalent: SA53 Gr B |
|
|
Line pipe for oil and gas transmission; PSL1 and PSL2 available. Weldable and suitable for offshore service |
|
|
High-strength line pipe for long-distance transmission; X52, X56, X60, X65, X70 PSL1 and PSL2 |
|
|
Low-temperature service seamless pipe for cryogenic and sub-zero applications down to -50 degrees C |
Further Reading: Technical Guides and Blogs
Our technical blog covers specification, selection, and application guidance for carbon steel seamless pipes.
- How to Choose the Right Carbon Steel Seamless Pipes
- Carbon Steel Properties, Grades and Applications
- What Is ASTM A106 Gr B and When Should You Specify It
- Seamless vs Welded Pipe for Industrial Applications
- Understanding Carbon Steel Instrumentation Tubing
FAQs
1. What is the difference between Carbon Steel Seamless Pipe Vs Seamless Steel Pipe?
The industrial sector utilizes carbon steel seamless pipes and seamless steel pipes although these materials differ substantially. The strength and durability of carbon steel seamless pipes increases because they contain higher amounts of carbon. Their superior tensile strength makes carbon steel seamless pipes perform best under high pressure conditions without breaking. Seamless steel pipes contain less carbon than carbon steel seamless pipes which results in increased susceptibility to corrosion during their lifespan. The industrial recommendation for long-term facilities points toward carbon steel seamless pipes because they demonstrate superior resistance to both wear and corrosion.
2. What is carbon steel seamless pipe used for?
The oil and gas sector together with power generation and water systems utilize CS seamless pipes as their primary material. The combination of strength and durability together with corrosion resistance properties makes seamless steel pipes suitable for transporting different fluids and gases and steam across challenging environments.
3. What grade are carbon steel seamless tubes?
Carbon steel seamless tubes are available in various grades such as ASTM A106, ASTM A53, and ASTM A312, depending on the application. These grades are chosen based on strength, durability, and resistance to pressure and temperature.
4. What is the difference between carbon steel seamless and welded tubes?
Seamless carbon steel tubes differ from welded carbon steel tubes in their manufacturing process. Seamless tubes are manufactured from single pieces of material which results in superior strength and enhanced pressure resistance. Welded tubes are produced through steel sheet welding to create tubes yet their welded seam often proves weaker than other sections.
