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A519 Pipe
A519 Pipe
ASTM A519 pipe is a seamless carbon and alloy steel tube used for mechanical and structural applications. This seamless steel tubing is produced using hot working or cold-drawing processes, offering superior dimensional accuracy, tight tolerances, and excellent mechanical properties. Our company supplies ASTM A519 mechanical tubing in grades 1020, 1026, 4130, and 4140, with outside diameters from 1/2” to 12” and customized wall thicknesses. We provide a variety of value-added services, including precision cutting, heat treatment, cold drawing, and surface finishing—our A519 seamless tubing is ideal for hydraulic systems, automotive parts, and heavy equipment components.
Product Specifications
| Item | AISI 1010 | AISI 1045 | AISI 4140 |
| Size Range | OD: 6–323.9 mm; WT: 0.5–25 mm; Length: 5–12m or custom | OD: 6–323.9 mm; WT: 0.5–25 mm; Length: 5–12m or custom | OD: 6–323.9 mm; WT: 0.5–25 mm; Length: 5–12m or custom |
| C (%) | 0.08–0.13 | 0.43–0.50 | 0.38–0.43 |
| Mn (%) | 0.30–0.60 | 0.60–0.90 | 0.75–1.00 |
| P (%) | ≤ 0.04 | ≤ 0.04 | ≤ 0.035 |
| S (%) | ≤ 0.05 | ≤ 0.05 | ≤ 0.040 |
| Si (%) | ≤ 0.10 | 0.10–0.35 | 0.15–0.35 |
| Cu (%) | ≤ 0.40 | ≤ 0.40 | ≤ 0.40 |
| Ni (%) | ≤ 0.40 | ≤ 0.40 | 0.40–0.70 |
| Cr (%) | ≤ 0.40 | ≤ 0.40 | 0.80–1.10 |
| Mo (%) | ≤ 0.15 | ≤ 0.15 | 0.15–0.25 |
| Min. Yield Strength (MPa) | ≥ 210 | ≥ 305 | ≥ 415 |
| Min. Tensile Strength (MPa) | ≥ 330 | ≥ 585 | ≥ 655 |
| Elongation (% ≥ 50mm) | ≥ 28 | ≥ 16 | ≥ 18 |
| Standard | ASTM A519 | ASTM A519 | ASTM A519 |
| Applications | Low-stress mechanical tubing, forming parts, furniture | Shafts, axles, bolts, general purpose components | High-strength mechanical parts, gears, hydraulic systems |
| A519 Tubing Tolerances | ||
| Outside Diameter (OD) | Tolerance (Cold Drawn) | Tolerance (Hot Finished) |
| Up to 1.000” (25.4 mm) | ± 0.005” (± 0.13 mm) | ± 0.010” (± 0.25 mm) |
| 1.000” to 1.500” | ± 0.006” (± 0.15 mm) | ± 0.015” (± 0.38 mm) |
| 1.500” to 2.500” | ± 0.008” (± 0.20 mm) | ± 0.020” (± 0.50 mm) |
| 2.500” to 4.000” | ± 0.010” (± 0.25 mm) | ± 0.025” (± 0.64 mm) |
| 4.000” to 6.000” | ± 0.015” (± 0.38 mm) | ± 0.030” (± 0.76 mm) |
| Wall Thickness (WT) | Cold Drawn Tolerance | Hot Finished Tolerance |
| Up to 0.120” (3 mm) | ± 10% | ± 12.5% |
| 0.120” to 0.250” | ± 12.5% | ± 15% |
| Above 0.250” | ± 15% | ± 15% |
| Types of ASTM A519 Tubing with Common Grades | |
| Type | Common Grades / Steel Grades |
| Seamless Mechanical Tubing | 1008, 1010, 1020, 1026, 4130, 4140 |
| Cold Drawn Seamless (CDS) | 1018, 1020, 1026, 4130, 4140 |
| Hot Finished Seamless (HFS) | 1020, 1025, 1026, 4130, 4140 |
| Drawn Over Mandrel (DOM) | 1020, 1026, 4130 |
| As Welded and Drawn Tubing | 1008, 1010, 1020 |
| Normalized Tubing | 1026, 4130, 4140 |
| Annealed Tubing | 1008, 1010, 1020, 1026, 4130 |
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More Details
ADVANTAGES
High precision seamless tubes, dimensional tolerance ±0.1mm
DISADVANTAGES
Cold-drawn process only, wall thickness limited. Cold-drawn process, limited wall thickness
INDUSTRIES
Mechanical engineering/automotive industry/precision instruments
APPLICATIONS
Hydraulic cylinder barrels/bearing bushings/precision shafts MACHINING: Grinding up to IT6 grade accuracy
