ASTM A519 Seamless Mechanical Tubing Manufacturer & Supplier in India
ASME SA519 Carbon Steel Pipe, ASME SA519 Heat Exchanger Tube A519 CD Seamless Tube, A519 HF Seamless Tube, A519 Dom Tubing Price

ASTM A519 specification covers numerous grades of carbon and alloy steel mechanical tubing, both hot-finished or cold-finished.
The steel used withinside the mechanical tubing may be forged in ingots or perhaps strand forged. When metallic of various grades is sequentially strand forged, identity of the consequent transition fabric is required. The seamless tubing is a tubular product made without a welded seam. It is typically synthetic through warm running metallic, and if necessary, through in the end cold finishing the hot-worked tubular product to supply the favored shape, dimensions and properties.
Our ASTM A519/ ASME SA519 Carbon Steel Pipe are Tubes undergoes hardness test, flattening test, flaring test, flange test, and hydrostatic test before exporting them to our clients.The tubes will be provided in the following shapes: round, square, rectangular and unique sections. Heat evaluation will be made to decide the chances of the factors targeted. If secondary melting methods are used, the warmth evaluation will be acquired from one re-melted ingot or the made of one re-melted ingot of every number one melt. The tubing will be lined with a movie of oil earlier than shaping to retard rust while targeted This summary is a quick precis of the referenced standard. It is informationally simplest and now no longer a legitimate part of the same old; the whole textual content of the same old itself ought to be cited for its use and application. ASTM does now no longer provide any assurance specific or implied or make any illustration that the contents of this summary are accurate, entire or as much as date.
Amardeep Steel Centre Manufacture & Supplier these ASTM A519 Carbon Steel Tubes in India. We are also amongst the leading exporters of these ASTM A519 Carbon Steel Seamless Tubes in the United States, Egypt, Kenya, United Kingdom, UAE, Dubai, Saudi Arabia, Iran, Turkey, Korea.
What Are ASTM A519 Tubes?
ASTM A519 is the standard specification governing seamless alloy steel mechanical tubing. This type of tubing is engineered for a wide range of demanding applications, including mechanical and pressure systems, as well as the transportation of steam, water, and gas. The ASTM A519 standard ensures that the tubing meets strict requirements for chemical composition, mechanical properties, and dimensional tolerances.
The key feature of A519 tubing is that it is produced as a seamless product. This means it is manufactured from a solid steel billet that is pierced and rolled, resulting in a tube with no welded seam. This process provides superior pressure-retaining capability and structural integrity compared to welded tubing.
Grades of A519 Tubing
At Amardeep Steel Centre LLP, we supply ASTM A519 Tubes in numerous grades, with the most common being:
ASTM A519 Grade 1026
A versatile and widely used carbon steel grade known for its good balance of strength and machinability.
ASTM A519 Grade 4130 (Chromoly)
A high-strength alloy steel offering excellent strength-to-weight ratio and toughness.
ASTM A519 Grade 4140
A chromium-molybdenum alloy steel known for its high fatigue and impact resistance.
The tubes are available in either a hot-finished or cold-finished condition to achieve the desired mechanical properties and surface finish. For applications requiring compliance with the Indian Boiler Regulations, we can also provide ASTM A519 Grade 4130 tubes with an IBR Test Certificate.
ASTM A519 Tube Specifications
ASTM A519 specification covers numerous grades of carbon and alloy steel mechanical tubing, both hot-finished or cold-finished.
| Specification | ASTM A519 / ASME SA519 |
|---|---|
| Product Name | A519 Mechanical Tubing, A519 Steel Tube |
| Size Range | 1/4" OD to 24" OD |
| Wall Thickness | Schedule 10 through XXS |
| Manufacturing | ASTM A519 Seamless Tube, Drawn-Over-Mandrel (DOM) |
| Finish | Hot-Finished (HF), Cold-Drawn (CD), Annealed, Normalized |
| Grades | Carbon Steel (1010, 1026) & Alloy Steel (4130, 4140, 8620) |
| Certification | Mill Test Certificate (MTC) as per EN 10204 3.1 |
Chemical Composition of ASTM A519 Seamless Tubes
| Element | Grade 1026 | Grade 4130 (Chromoly) |
|---|---|---|
| Carbon (C) | 0.22 - 0.28% | 0.28 - 0.33% |
| Manganese (Mn) | 0.60 - 0.90% | 0.40 - 0.60% |
| Phosphorus (P) | 0.040% max | 0.035% max |
| Sulfur (S) | 0.050% max | 0.040% max |
| Silicon (Si) | - | 0.15 - 0.35% |
| Chromium (Cr) | - | 0.80 - 1.10% |
| Molybdenum (Mo) | - | 0.15 - 0.25% |
Mechanical Properties of ASTM A519 Seamless Tubes
| Property | Grade 1026 | Grade 4130 |
|---|---|---|
| Tensile Strength | 65,000 psi (450 MPa) | 90,000 psi (620 MPa) |
| Yield Strength | 45,000 psi (310 MPa) | 70,000 psi (483 MPa) |
| Elongation | 30% | 20% |
| Hardness (Brinell) | 131 HB | 187 HB |
Manufacturing Processes for A519 Steel Tube
The properties of an A519 steel tube are largely determined by its manufacturing process.
- Hot-Finished (HF): Steel is pierced at an elevated temperature to form a tube shell. This is a cost-effective process suitable for applications where finish and precise dimensions are secondary.
- Cold-Drawn (CD): A hot-finished tube is further processed at room temperature, being drawn through a die and over a mandrel. This improves surface finish, dimensional accuracy, and mechanical strength.
- Drawn-Over-Mandrel (DOM): A high-quality welded tube is cold-drawn, resulting in a tube with uniform wall thickness and excellent concentricity, making it superior for hydraulic and automotive parts.
A519 Tubing Tolerances
The dimensional tolerances for ASTM A519 Tubes are a critical aspect of the specification, ensuring the tubing meets the precise requirements for mechanical applications. These tolerances vary significantly based on the manufacturing process.
| Dimension | Hot-Finished (HF) Seamless | Cold-Drawn (CD) Seamless / DOM |
|---|---|---|
| Outside Diameter (OD) | Wider tolerance range, specified in ASTM A519 tables. | Much tighter control, offering superior dimensional accuracy. |
| Inside Diameter (ID) | Generally not a specified tolerance unless requested. | Can be controlled with high precision, especially with DOM tubing. |
| Wall Thickness | Permissible variation is typically ±10% to ±12.5%. | Tighter variation, often within ±5% to ±7%, ensures uniformity. |
| Straightness | Standard straightness is suitable for most applications. | Superior straightness, critical for rotating parts and shafts. |
For specific projects requiring exceptionally tight tolerances (e.g., Cold Rolled Pipe at +/-0.05mm), please contact our technical team to discuss your exact requirements.
ASTM A519 Tubing Schedule & Weight Chart
While A519 mechanical tubing is often specified by its exact Outside Diameter (OD) and Wall Thickness, it is also commonly referenced by Nominal Pipe Size (NPS) and Schedule for convenience, especially when used in structural or pressure applications.
| Nominal Pipe Size (NPS) | Outside Diameter (in) | Wall Thick. (in) | Inside Diameter (in) | Weight (lbs/ft) | Schedule | Section Modulus (in³) | Capacity (gal/ft) |
|---|---|---|---|---|---|---|---|
| 1/2" | 0.840 | 0.109 | 0.622 | 0.85 | 40 / STD | 0.0407 | 0.0158 |
| 0.147 | 0.546 | 1.09 | 80 / XHY | 0.0478 | 0.0122 | ||
| 0.188 | 0.464 | 1.31 | 160 | 0.0528 | 0.0088 | ||
| 0.294 | 0.252 | 1.72 | XXHY | 0.0577 | 0.0026 | ||
| 3/4" | 1.050 | 0.113 | 0.824 | 1.13 | 40 / STD | 0.0705 | 0.0277 |
| 0.154 | 0.742 | 1.48 | 80 / XHY | 0.0853 | 0.0225 | ||
| 0.219 | 0.612 | 1.95 | 160 | 0.1006 | 0.0153 | ||
| 0.308 | 0.434 | 2.44 | XXHY | 0.1103 | 0.0077 | ||
| 1" | 1.315 | 0.133 | 1.049 | 1.68 | 40 / STD | 0.1328 | 0.0449 |
| 0.179 | 0.957 | 2.17 | 80 / XHY | 0.1606 | 0.0374 | ||
| 0.250 | 0.815 | 2.85 | 160 | 0.1904 | 0.0271 | ||
| 0.358 | 0.599 | 3.66 | XXHY | 0.2136 | 0.0146 | ||
| 1 1/4" | 1.660 | 0.140 | 1.380 | 2.27 | 40 / STD | 0.2346 | 0.0777 |
| 0.191 | 1.278 | 3.00 | 80 / XHY | 0.2913 | 0.0666 | ||
| 0.250 | 1.160 | 3.77 | 160 | 0.3421 | 0.0549 | ||
| 1 1/2" | 1.900 | 0.145 | 1.610 | 2.72 | 40 / STD | 0.3262 | 0.1058 |
| 0.200 | 1.500 | 3.63 | 80 / XHY | 0.4118 | 0.0918 | ||
| 0.281 | 1.338 | 4.86 | 160 | 0.5079 | 0.0730 | ||
| 2" | 2.375 | 0.154 | 2.067 | 3.66 | 40 / STD | 0.5606 | 0.1743 |
| 0.218 | 1.939 | 5.03 | 80 / XHY | 0.7309 | 0.1534 | ||
| 0.344 | 1.687 | 7.47 | 160 | 0.9806 | 0.1161 | ||
| 0.436 | 1.503 | 9.04 | XXHY | 1.1043 | 0.0922 | ||
| 2 1/2" | 2.875 | 0.203 | 2.469 | 5.80 | 40 / STD | 1.0640 | 0.2487 |
| 0.276 | 2.323 | 7.67 | 80 / XHY | 1.3386 | 0.2202 | ||
| 0.375 | 2.125 | 10.02 | 160 | 1.6371 | 0.1842 | ||
| 3" | 3.500 | 0.216 | 3.068 | 7.58 | 40 / STD | 1.7241 | 0.3840 |
| 0.300 | 2.900 | 10.26 | 80 / XHY | 2.2253 | 0.3431 | ||
| 0.438 | 2.624 | 14.34 | 160 | 2.8774 | 0.2811 | ||
| 4" | 4.500 | 0.237 | 4.026 | 10.80 | 40 / STD | 3.2145 | 0.6613 |
| 0.337 | 3.826 | 15.00 | 80 / XHY | 4.2713 | 0.5972 | ||
| 0.531 | 3.438 | 22.53 | 160 | 5.8997 | 0.4822 | ||
| 6" | 6.625 | 0.280 | 6.065 | 18.99 | 40 / STD | 8.4958 | 1.5008 |
| 0.432 | 5.761 | 28.60 | 80 / XHY | 12.2240 | 1.3541 | ||
| 0.562 | 5.501 | 36.43 | 120 | 14.9806 | 1.2346 | ||
| 0.719 | 5.187 | 45.39 | 160 | 17.8243 | 1.0977 |
Applications of A519 Mechanical Tubing & ASTM A519 Seamless Tubes
The superior strength, precise tolerances, and excellent machinability of ASTM A519 tubes make them the preferred choice for countless critical applications across demanding industries. As a leading A519 Tubing supplier, Amardeep Steel Centre LLP provides products that are integral to the performance and safety of components where failure is not an option.
- Automotive & Motorsports: The high strength-to-weight ratio of A519 steel tube, particularly Grade 4130 (Chromoly), makes it essential for high-performance applications. It is used to manufacture durable and lightweight axles, drive shafts, steering components, suspension parts, and safety roll cages for racing.
- Hydraulics & Fluid Power: This is a primary market for A519 Mechanical Tubing. The smooth internal finish and exceptional concentricity of A519 CD Seamless Tube and A519 DOM Tubing are ideal for manufacturing hydraulic cylinders, pistons, barrels, and high-pressure fluid lines, ensuring efficient performance and long seal life.
- Industrial Machinery & Equipment: In heavy machinery, our tubes provide the durability needed to withstand constant stress and wear. They are machined into precision components such as industrial rollers, conveyor parts, bearings, bushings, spacers, and robust machine frames that form the backbone of manufacturing equipment.
- Oil & Gas Exploration: The high-pressure environments of the energy sector demand the proven strength of ASTM A519 seamless tubes. They are used in the manufacturing of drilling equipment, downhole tools, pressure vessels, and various components that must perform reliably under extreme conditions.
- Construction & Heavy Equipment: A519 tubing provides the structural integrity and wear resistance needed for heavy construction equipment. It is used for pivot pins, rollers, structural sleeves, and other critical parts in cranes, excavators, and earth-moving machinery.
Why Choose Amardeep Steel Centre LLP for ASTM A519 Tubing?
Choosing a supplier for critical components like ASTM A519 tubing is a decision that impacts your project's quality, timeline, and budget. At Amardeep Steel Centre LLP, we are more than just a stockist; we are a dedicated partner committed to providing end-to-end solutions and unparalleled value.
- Proven Experience & Global Reach: As a trusted exporter with decades of experience, we deliver high-quality ASTM A519 tubes that meet stringent international standards.
- Certified Quality Assurance: We guarantee quality with a Mill Test Certificate (MTC) for every order. We also supply IBR-certified tubing for critical applications, ensuring full compliance and traceability.
- Competitive Price: Our efficient operations and large-scale procurement allow us to offer the best ASTM A519 tubing price without compromising on quality.
- Vast Inventory for Fast Delivery: We stock a massive range of A519 Mechanical Tubing in grades 1026, 4130, and more. This ready stock ensures we can reduce your lead times and meet urgent deadlines.
- Customization & Value-Added Services: We are your one-stop shop for custom solutions. We offer precision cutting, heat treatment, and machining services to deliver tubes that meet your exact specifications.
- Expert Technical Support: Our team of experts provides more than just a product; they offer technical guidance to help you select the most effective and economical solution for your project.
Related Products
To serve as your complete source for industrial tubing and pipe, we also offer a wide selection of related products:
Get a Competitive ASTM A519 Tubing Price
Ready to source the highest quality ASTM A519 Tubes for your project? Contact the expert team at Amardeep Steel Centre LLP today. We are committed to providing you with a prompt, comprehensive, and highly competitive quote.
To help us serve you better, please provide your requirements, including the grade, dimensions (OD, wall thickness), length, and quantity. Our dedicated sales team will assist you with technical specifications and availability to ensure your complete satisfaction. For the best ASTM A519 Tubing Price and unmatched service, your search ends here.
FAQs About ASTM A519 Tubing
What is the difference between Hot-Finished (HF) and Cold-Drawn (CD) A519 tubing?
Hot-finished tubing is formed at high temperatures and has a rougher surface and looser dimensional tolerances. Cold-drawn tubing is a hot-finished tube that is further processed at room temperature to achieve a smoother finish, tighter tolerances, and higher strength.
Is A519 DOM tubing seamless?
No. A519 DOM tubing starts as a high-quality flat-rolled steel that is welded and then cold-drawn over a mandrel. The process removes the weld flash and results in a tube with properties and tolerances that often exceed those of a seamless tube, but it technically has a seam.
What is the most common grade of A519 tubing?
ASTM A519 Grade 1026 is the most widely used carbon steel grade due to its excellent combination of strength, machinability, and weldability. For higher strength applications, Grade 4130 (Chromoly) is very popular.
What are ASTM A519 Seamless Tubes?
ASTM A519 seamless tubes are mechanical tubes manufactured without a welded seam, ensuring uniform strength and reliability. These tubes are produced by hot-working steel and, if necessary, cold-finishing the hot-worked tubular product to achieve the desired shape, dimensions, and properties.
What materials are used in ASTM A519 seamless tubes?
The materials used in ASTM A519 seamless tubes can be cast from ingots or strand cast. The specification allows for various grades of carbon and alloy steel, including grades like 1020, 4130, and 4140, depending on the specific application requirements.
What is the hardness of ASTM A519?
The hardness of ASTM A519 seamless mechanical tubing depends on the grade and heat treatment, but typically falls within Rockwell B 72–90 or Brinell 143–187 HB for normalized conditions.
What is the ASTM A519 equivalent to?
ASTM A519 is often considered equivalent to DIN 2391, EN 10294, and JIS G3441 standards, depending on the specific grade and application.
What is the ASTM A519 standard?
ASTM A519 is a standard specification for seamless carbon and alloy steel mechanical tubing, covering both hot-finished and cold-finished tubes used in machining, automotive, structural, and mechanical applications.
What is ASTM A519 material?
ASTM A519 is a specification for seamless carbon and alloy steel mechanical tubing. It is commonly used in applications requiring strength, toughness, and precise dimensional accuracy, such as automotive components, machinery parts, and structural applications.