ASTM A519 Tubes Manufacturer & Supplier
What Exactly Are ASTM A519 Tubes? Understanding the Standard of Excellence
What does "Mechanical Tubing" mean for you?
- Close Dimensional Tolerances: Essential for applications requiring accurate fit-up, smooth operation of moving parts, or further precision machining.
- Superior Strength-to-Weight Ratio: Making it ideal for applications where reducing overall weight without sacrificing structural integrity is crucial.
- A Wide Range of Mechanical Properties: Achievable through different steel grades and heat treatments, allowing you to select tubing perfectly matched to your specific strength, hardness, and toughness requirements.
- Excellent Surface Finishes: Particularly with cold-finished tubes, providing a smooth surface ideal for sealing, plating, or aesthetic appeal.
ASTM A519 Tube Specifications
| Specification Element | Details & Options Provided by Corten Steel Tube |
|---|---|
| Standard | ASTM A519 / ASME SA519 (We can provide dual-certified material where required, ensuring compliance for pressure vessel applications under ASME code.) |
| Common Grades Stocked & Supplied | Carbon Steel Grades: 1010, 1018, 1020, 1025, 1026, 1030, 1035, 1040, 1045, 1050 Alloy Steel Grades: 4118, 4130 (Chrome-Moly), 4140/4142 (Chrome-Moly), 8620, 52100 (Bearing Steel) (Other grades available on request.) |
| Type | Seamless Mechanical Tubing (Ensuring uniform strength and pressure integrity.) |
| Manufacturing Process | Hot-Finished Seamless (HFS) or Cold-Finished Seamless (CDS) (Choice depends on your required tolerances, surface finish, and mechanical properties.) |
| Available Shapes | Round (most common), Square, Rectangular, Hexagonal, Oval, and Custom Special Sections (engineered to your specific design needs.) |
| Size Range (OD) | Typically from 1/4” (6.35 mm) up to 12 3/4” (323.8 mm). Larger ODs can be sourced or manufactured to order. |
| Wall Thickness | From light gauge (e.g., 0.035” / 0.89 mm) up to heavy walls (e.g., over 1.5” / 38.1 mm), as specified by your engineering requirements. We cater to standard schedules and custom thicknesses. |
| Length | Single Random Lengths (SRL – typically 17-24 ft), Double Random Lengths (DRL – typically 37-44 ft), or Precise Cut-to-Lengths (as per your specific component dimensions, minimizing waste). |
| Tube Ends | Plain Ends (PE – square cut, most common), Beveled Ends (BE – for welding preparation), Threaded Ends (TE – for screwed connections, with or without couplings). |
| Surface Finish Options | As-produced (Hot-Finished or Cold-Finished mill finish), Black (oiled or varnished for rust prevention), Pickled (to remove scale), Bright Annealed (for a clean, bright surface), Polished (to various grit finishes for aesthetic or functional requirements). |
| Heat Treatment Conditions | As-Rolled/As-Drawn, Annealed (A), Normalized (N), Stress Relieved (SR), Quenched and Tempered (Q&T) (To achieve specific mechanical properties like increased strength, hardness, or toughness.) |
Chemical Composition of Common ASTM A519 Grades
| Grade | Carbon (C) % | Manganese (Mn) % | Phosphorus (P) % (max) | Sulfur (S) % (max) | Silicon (Si) % | Chromium (Cr) % | Molybdenum (Mo) % | Other Elements (Typical) |
|---|---|---|---|---|---|---|---|---|
| 1010 (Carbon) | 0.08–0.13 | 0.30–0.60 | ≤0.040 | ≤0.050 | — | — | — | Fe balance |
| 1020 (Carbon) | 0.17–0.23 | 0.30–0.60 | ≤0.040 | ≤0.050 | — | — | — | Fe balance |
| 1026 (Carbon) | 0.22–0.28 | 0.60–0.90 | ≤0.040 | ≤0.050 | 0.10-0.40 (Typical) | — | — | Fe balance |
| 1045 (Carbon) | 0.43–0.50 | 0.60–0.90 | ≤0.040 | ≤0.050 | 0.10-0.40 (Typical) | — | — | Fe balance |
| 4130 (Alloy) | 0.28–0.33 | 0.40–0.60 | ≤0.035 | ≤0.040 | 0.15–0.35 | 0.80–1.10 | 0.15–0.25 | Fe balance |
| 4140 (Alloy) | 0.38–0.43 | 0.75–1.00 | ≤0.035 | ≤0.040 | 0.15–0.35 | 0.80–1.10 | 0.15–0.25 | Fe balance |
| 52100 (Alloy) | 0.95–1.10 | 0.25–0.45 | ≤0.025 | ≤0.025 | 0.15–0.35 | 1.30–1.60 | — | Fe balance (Bearing Steel) |
Note: This table represents typical ranges. Always refer to the specific ASTM A519 standard and Material Test Certificates (MTCs) for precise composition limits for each grade and heat.
Mechanical Properties of ASTM A519 Grades
| Grade | Condition | Tensile Strength (MPa, min) | Yield Strength (MPa, min) | Elongation (% in 2″, min) | Hardness (Typical) |
|---|---|---|---|---|---|
| 1020 (Carbon) | Hot Finished (HF) | 380 | 205 | 25 | ~111 HB |
| 1020 (Carbon) | Cold Drawn (CD) | 480 | 415 | 15 | ~143 HB |
| 1026 (Carbon) | Normalized (N) | 450 | 315 | 28 | ~137 HB |
| 1026 (Carbon) | CD, Stress Relieved | 550 | 480 | 12 | ~163 HB |
| 1045 (Carbon) | Normalized (N) | 620 | 380 | 16 | ~187 HB |
| 1045 (Carbon) | Q&T (example) | 850-1000 | 700-850 | 12-18 | ~255-302 HB (or HRC equiv.) |
| 4130 (Alloy) | Normalized (N) | 621 | 414 | 20 | ~197 HB |
| 4130 (Alloy) | Q&T (example) | 860-1030 | 760-930 | 12-20 | ~269-321 HB (or HRC equiv.) |
| 4140 (Alloy) | Annealed | 655 | 415 | 25 | ~197 HB |
| 4140 (Alloy) | Q&T (example) | 1000-1200 | 900-1100 | 10-18 | ~302-363 HB (or HRC equiv.) |
Mechanical properties are HEAVILY influenced by the specific heat treatment, amount of cold work, and section size. The values above are illustrative. ASTM A519 provides detailed tables for various conditions. Always specify your required condition and refer to MTCs for certified properties.
Equivalent Standards to ASTM A519 Tubes
| Standard Body | Typical Equivalent or Similar Standard(s) | Notes & Considerations |
|---|---|---|
| ASME (USA) | SA519 / SA519M | Directly equivalent to ASTM A519, intended for applications under the ASME Boiler and Pressure Vessel Code. Corten Steel Tube often supplies dual-certified material. |
| EN (European) | EN 10297-1 (Seamless circular steel tubes for mechanical and general engineering purposes) EN 10305-1 (Seamless cold drawn tubes for precision applications) EN 10083 (Steels for quenching and tempering) |
Specific EN grades (e.g., E235, E355 for general mechanical; C22E, C45E for Q&T; various precision tube grades) would need to be compared based on specific chemical composition and mechanical properties to an A519 grade. Careful cross-referencing is vital. |
| DIN (German) | DIN 2391-1 (Seamless precision steel tubes – largely superseded by EN 10305-1) DIN 17200 / DIN EN 10083 (Steels for quenching and tempering) |
Historical DIN grades like St 37.0, St 52.0 (for mechanical) or Ck22, Ck45 (for Q&T) were common. Now largely aligned with EN standards. |
| JIS (Japanese) | JIS G3445 (Carbon steel tubes for machine structural purposes) IS G4051 / G4053 (Carbon/Alloy steels for machine structural use – often bar stock) |
Grades like STKM 11A, STKM 13C, STKM 19A (for tubes) or S20C, S45C, SCM430, SCM440 (for steel grades) would be compared. |
| ISO | ISO 683 (Heat-treatable steels, alloy steels and free-cutting steels) ISO 2938 (Hollow steel bars for machining) |
ISO standards offer various grades that may align with specific A519 chemistries and properties. Detailed comparison is necessary. |
This table is for general informational guidance only. When considering an alternative grade from a different standard for any critical application, it isÂ
Applications of ASTM A519 Tubes
1. Automotive Industry
ASTM A519 tubes play a vital role in the production of automotive components such as drive shafts, axle shafts, suspension parts, and steering columns. Their high tensile strength and fatigue resistance ensure safety and performance in high-speed and heavy-duty vehicles.
2. Oil & Gas Sector
These tubes are extensively used in drilling equipment, well casings, and production tools due to their ability to withstand extreme pressures and harsh environments. Grades like AISI 4130 and 4140 are especially valued in this sector for their corrosion and heat resistance.
3. Hydraulic and Pneumatic Systems
Cold-drawn ASTM A519 tubes are ideal for manufacturing hydraulic cylinders and pneumatic components. Their precise inner and outer diameters ensure seamless fluid flow, improved sealing, and efficient mechanical function.
4. Construction and Structural Engineering
With exceptional load-bearing capabilities, ASTM A519 tubes are used in the construction of bridges, towers, cranes, and heavy-duty frameworks. Their reliability under stress makes them suitable for dynamic and static load applications.
5. Machinery and Equipment Manufacturing
From agricultural machinery to industrial processing equipment, ASTM A519 tubes are essential in producing gears, rollers, bearings, and spindles. Their machinability and mechanical strength contribute to the durability of finished products.
In every sector where strength, precision, and performance matter—ASTM A519 tubes deliver unmatched reliability. Their wide-ranging applications showcase their value as a foundational component in modern engineering and manufacturing.
Have questions about A519 Corten steel Tube? Get in touch with us for more information!
Why Choose Corten Steel Tube for Your ASTM A519 Tubes? Your Trusted Partner in Quality and Reliability.
When it comes to sourcing critical materials like ASTM A519 Tubes, your choice of supplier is as important as the material itself. At Corten Steel Tube, we are more than just a provider of steel; we are your dedicated partner, committed to delivering excellence at every stage. Here’s why industry leaders across the globe choose us:
- Premium Quality You Can Rely On
At Corten Steel Tube, quality is non-negotiable. Our ASTM A519 tubes undergo rigorous inspection and testing to meet and exceed industry standards. Whether you require carbon steel grades like 1020/1026 or alloy grades such as 4130/4140, we ensure consistent material integrity, dimensional accuracy, and excellent mechanical properties. - Wide Range of Grades & Sizes
We offer a comprehensive inventory of ASTM A519 seamless mechanical tubing in various sizes, thicknesses, and grades to suit diverse industrial requirements. From automotive components to heavy-duty hydraulic applications, we have the right solution for your project. - Customization & Value-Added Services
Our capabilities go beyond supply. We offer value-added services such as cut-to-length, heat treatment, surface finishing, and custom packaging. This allows clients to receive ready-to-use tubes tailored to their specifications, saving both time and resources. - Global Reach, Local Expertise
With a strong distribution network and global shipping capabilities, we cater to clients across the world—ensuring fast and reliable delivery. Our dedicated support team provides technical guidance and quick turnaround for every order, no matter the location. - Commitment to Customer Satisfaction
At Corten Steel Tube, we believe in building long-term partnerships. Our commitment to transparency, reliability, and customer satisfaction has made us the preferred supplier for leading companies in automotive, oil & gas, construction, and engineering sectors.
Choose Corten Steel Tube as your go-to source for ASTM A519 tubes—and experience unmatched quality, technical support, and service excellence. Let us help you power your projects with confidence.
Explore Other Popular ASTM A519 Grades & Related Products
ASTM A519 Grade 4130: Known as “Chromoly” steel, Grade 4130 is a low-alloy steel with chromium and molybdenum, offering a great strength-to-weight ratio. It’s easy to weld and machine, making it ideal for aerospace parts, race car frames, and high-performance industrial components.
ASTM A519 Grade 1026 Tubes: This low-carbon steel grade is perfect for applications that don’t demand high strength but require good machinability and weldability. It’s a common choice for automotive components, hydraulic cylinders, and general mechanical use.
ASTM A519 Grade 4140 Tubes: ASTM A519 Grade 4140 is a medium-carbon alloy steel that offers greater strength and hardness compared to grades like 1020 or 1026. Known for its excellent wear resistance and moderate toughness, it is widely used in critical components such as axles, shafts, gears, and other high-stress mechanical parts.
ASTM A519 Grade 4140 Tubes: A high-strength chromium-molybdenum alloy steel designed for tough jobs. Grade 4140 offers excellent fatigue resistance, toughness, and durability—commonly used in heavy equipment, oilfield parts, and power transmission components.
FAQs
ASTM A509 tubes find mechanical applications in hydraulic systems, structural supports, automotive components, oil and gas apparatus.
ASTM A509 does, in fact, cover seamless mechanical tubes generated without welds for maximum strength and performance.
 Hot-finished tubes have a rougher surface and are more affordably priced, even if cold-drawn tubes offer tighter tolerances and a better finish.
Common grades based on use and required strength fall between AISI 1018 and 4140.
Common grades fall from AISI 1018 to 4140 depending on the application and required strength.
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