ASTM A519 covers several grades of carbon and alloy steel seamless mechanical tubing. The standard is also acceptable in the manufacture of piping. It is manufactured by hot working and then cold finishing the steel into round, square, rectangle or special shapes.
ASTM A519 covers several grades of carbon and alloy steel seamless mechanical tubing.
ASTM A519 covers both seamless hot-finished mechanical tubing and seamless cold-finished mechanical tubing in sizes up to and including 12 3⁄4 in. (323.8 mm) outside diameter for round tubes with wall thicknesses as required.
Standard: ASTM A519 / ASME SA 519.
Description Name: ASME SA 519 / ASTM A519 GR.1026 boiler pipes, A519 pipes, Grade 1026 ASTM A519 carbon steel tube, ASTM A519 GR. 1026 mechanical pipes, ASTM A 519 GR.1026 carbon steel pipe, Grade 1026 SEAMLESS PIPE, ASTM A519 Grade 1026 cold drawn seamless steel tubes, ASTM A519 Gr.1026 pipes and tubing, ASTM A519 SAE1026 seamless tubing, alloy steel tube, carbon steel tube, mechanical tubing, Seamless steel tube, steel tube.
Size: 6mm-323.8mm.
Schedule: 10-XXS / Thk.
Shape: Round or Special sections.
Length: Single random length/ Double random length or as customer’s actual request.
Grade: SAE 1026 / AISI 1026 / GRADE 1026.
Condition: The purchaser shall specify a sizing method and, if required, a thermal treatment.
Size range(mm):
Out diameter:10-324mm
Wall Tickness:1-30mm
Length:14000mm max
| Specifications | Range |
| Out Diameter | 4"- 26" |
| Wall Thickness | 0.315"-2.5" |
What is ASTM A519?
ASTM A519 covers several grades of carbon and alloy steel seamless mechanical tubing. The standard is also acceptable in the manufacture of piping. It is manufactured by hot working and then cold finishing the steel into round, square, rectangle or special shapes.
Scope
ASTM A519 specification covers several frades of carbon and alloy steel seamless mechanical tubing.
1.1 The frades anr listed in Tables 1, 2, and 3. When welding is used for joining the weldable mechanical tube grades, the welding procedure shall be suitable for the frade, the condition of the components, and the intended service.
1.2 This specification covers both seamless hot-finished emchanical tubing and seamless cold-finished mechanical tubing in sizes up to and including 12 3/4 in.(322.8mm) outside diameter of rround tubes with wall thicknesses as required.
1.3 The tubes shall be furnished in the following shapes, as specified by the purchaser:round, square, rectagular, and special sections.
1.4 Supplementary requirements of an optional nature are provided and when desired shall be so stated in the order.
| Grade | C | Mn | P | S | Si | Cr | Mo |
| 1008 | ≤0.10 | 0.30-0.50 | 0.04 | 0.05 | / | / | / |
| 1010 | 0.08-0.13 | 0.30-0.60 | 0.04 | 0.05 | / | / | / |
| 1018 | 0.15-0.20 | 060-0.90 | 0.04 | 0.05 | / | / | / |
| 1020 | 0.18-0.23 | 0.30-0.60 | 0.04 | 0.05 | / | / | / |
| 1025 | 0.22-0.28 | 0.30-0.60 | 0.04 | 0.05 | / | / | / |
| 1026 | 0.22-0.28 | 0.60-0.90 | 0.04 | 0.05 | / | / | / |
| 4130 | 0.28-0.33 | 0.40-0.60 | 0.04 | 0.05 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
| 4140 | 0.38-0.43 | 0.75-1.00 | 0.04 | 0.05 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
| Grade | Condition | Tensile strength | Yield strength | Elongation |
| 1020 | CW | ≥414 | ≥483 | ≥5% |
| SR | ≥345 | ≥448 | ≥10% | |
| A | ≥193 | ≥331 | ≥30% | |
| N | ≥234 | ≥379 | ≥22% | |
| 1025 | CW | ≥448 | ≥517 | ≥5% |
| SR | ≥379 | ≥483 | ≥8% | |
| A | ≥207 | ≥365 | ≥25% | |
| N | ≥248 | ≥379 | ≥22% | |
| 4130 | SR | ≥586 | ≥724 | ≥10% |
| A | ≥379 | ≥517 | ≥30% | |
| N | ≥414 | ≥621 | ≥20% | |
| 4140 | SR | ≥689 | ≥855 | ≥10% |
| A | ≥414 | ≥552 | ≥25% | |
| N | ≥621 | ≥855 | ≥20% |
ASTM A519 Alloy steel pipes are subjected to rigorous quality control measures, ensuring that they meet the specified mechanical and dimensional requirements. Various tests, including hardness, tensile, and impact tests, are conducted to guarantee their reliability.
