ASTM A519 Tubes Manufacturer & Supplier
Amardeep Steel Centre is a premier manufacturer, supplier, and exporter of high-quality ASTM A519 Tubes. As a leading name in the industry, we provide a comprehensive range of A519 Mechanical Tubing designed for a wide array of mechanical and pressure applications. Our inventory includes various grades like 1026, 4130, and 4140, available as seamless or DOM tubing. We are committed to providing superior quality products, competitive pricing, and on-time delivery to clients worldwide.
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, 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
| 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 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 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
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 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 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, 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 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.