ASTM A519 Grade 1020 1025 Carbon Steel Seamless PipesASTM A519 This specification covers for several grades of carbon and alloy steel mechanical tubing, either hot-finished or cold-finished. The steel used in the mechanical tubing may be cast in ingots or may be strand cast. When steel of different grades is sequentially strand cast, identification of the resultant transition material is required.
The seamless tubing is a tubular product made without a welded seam. It is usually manufactured by hot working steel, and if necessary, by subsequently cold finishing the hot-worked tubular product to produce the desired shape, dimensions and properties. The tubes shall be furnished in the following shapes: round, square, rectangular and special sections. Heat analysis shall be made to determine the percentages of the elements specified. If secondary melting processes are used, the heat analysis shall be obtained from one remelted ingot or the product of one remelted ingot of each primary melt. The tubing shall be coated with a film of oil before shaping to retard rust when specified.The seamless tubing is a tubular product made without a welded seam. It is usually manufactured by hot working steel, and if necessary, by subsequently cold finishing the hot-worked tubular product to produce the desired shape, dimensions and properties. The tubes shall be furnished in the following shapes: round, square, rectangular and special sections. Heat analysis shall be made to determine the percentages of the elements specified. If secondary melting processes are used, the heat analysis shall be obtained from one remelted ingot or the product of one remelted ingot of each primary melt. The tubing shall be coated with a film of oil before shaping to retard rust when specified.Size range(mm):Out diameter:10-324mmWall Tickness:1-30mmLength:14000mm maxShengtian Group Co.,Ltd supplies a full range of ASTM A519 carbon and alloy steel mechanical tubingSteel grade and Chemical composition (%) of ASTM A519:
| 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 |
0.60-0.90 |
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 |
Mechanical Properties of ASTM A519:
| Grade |
Condition |
MPa Tenslle Point |
Yield Point |
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% |
Dimension Tolerances
| Pipe Type |
Pipe Sizes |
Tolerances |
| Cold drawn |
OD |
≤48.3mm |
±0.40mm |
| WT |
≥60.3mm |
±1%mm
|
Note:HR----Hot RolledCW----Cold WorkedSR----Stress RelievedA----AnnealedN----Normalized
Application
A519 seamless tubing is commonly used in applications requiring machining, heat treating, close tolerances, smooth finishes, and/or definite physical properties.
The tubes shall be furnished in the following shapes: round, square, rectangular and special sections. Heat analysis shall be made to determine the percentages of the elements specified. If secondary melting processes are used, the heat analysis shall be obtained from one remelted ingot or the product of one remelted ingot of each primary melt. The tubing shall be coated with a film of oil before shaping to retard rust when specified This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
Shengtian Group stocks a huge selection of A519 seamless mechanical steel tube, with sizes and styles to match any requirements. The ASTM A519 steel tube specification covers both hot-finished and cold-finished mechanical tubing in sizes up to 12-3/4” O.D. A519 is available in round, square, and rectangular profiles, and in special sections.
