ASTM A519 Chemical & Physical
Standard: ASTM A519-06
1. ASTM A519 seamless steel mechanical tube
2. Grade: 1020,1026,4140,4142,etc.
Standard: ASTM A519-06
Scope: Covers several grades of carbon and alloy steel seamless mechanical tubing. The grades are listed in Table-1. This specification covers both seamless hot-finished mechanical tubing and seamless cold-finished mechanical tubing.
Size Range: Covers tubes in size up to and including 12 3/4(323.8mm) outside diameter for round tubes with wall thicknesses as required.
Shape: The tubes shall be furnished in the following shapes, as specified by the purchaser: round, square,rectangular and special sections.
Chemical Composition& Mechanical Properties(Type: Cold Drawn Seamless Mechanical/CDS)
Grade | C | Mn | P≤ | S≤ | Si | Cr | Mo |
1008 | ≤0.10 | 0.30-0.50 | 0.040 | 0.050 | – | – | – |
1010 | 0.08-0.13 | 0.30-0.60 | 0.040 | 0.050 | – | – | – |
1018 | 0.15-0.20 | 0.60-0.90 | 0.040 | 0.050 | – | – | – |
1020 | 0.18-0.23 | 0.30-0.60 | 0.040 | 0.050 | – | – | – |
1025 | 0.22-0.28 | 0.30-0.60 | 0.040 | 0.050 | – | – | – |
1035 | 0.32-0.38 | 0.60-0.90 | 0.040 | 0.050 |
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1045 | 0.43-0.50 | 0.60-0.90 | 0.040 | 0.050 |
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1026 | 0.22-0.28 | 0.60-0.90 | 0.040 | 0.050 | – | – | – |
4130 | 0.28-0.33 | 0.40-0.60 | 0.040 | 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
4140 | 0.38-0.43 | 0.75-1.00 | 0.040 | 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
Grade | Condition | Ultimate Strength | Yield Strength | Elongation | Rockwell Hardness | ||
Ksi | Mpa | Ksi | Mpa | % | B scale | ||
1020 | HR | 50 | 345 | 32 | 221 | 25 | 55 |
CW | 70 | 483 | 60 | 414 | 5 | 75 | |
SR | 65 | 448 | 50 | 345 | 10 | 72 | |
A | 48 | 331 | 28 | 193 | 30 | 50 | |
N | 55 | 379 | 34 | 234 | 22 | 60 | |
1025 | HR | 55 | 379 | 35 | 241 | 25 | 60 |
CW | 75 | 517 | 65 | 448 | 5 | 80 | |
SR | 70 | 483 | 55 | 379 | 8 | 75 | |
A | 53 | 365 | 30 | 207 | 25 | 57 | |
N | 55 | 379 | 36 | 248 | 22 | 60 | |
1035 | HR | 65 | 448 | 40 | 276 | 20 | 72 |
CW | 85 | 586 | 75 | 517 | 5 | 88 | |
SR | 75 | 517 | 65 | 448 | 8 | 80 | |
A | 60 | 414 | 33 | 228 | 25 | 67 | |
N | 65 | 448 | 40 | 276 | 20 | 72 | |
1045 | HR | 75 | 517 | 45 | 310 | 15 | 80 |
CW | 90 | 621 | 80 | 552 | 5 | 90 | |
SR | 80 | 552 | 70 | 483 | 8 | 85 | |
A | 65 | 448 | 35 | 241 | 20 | 72 | |
N | 75 | 517 | 48 | 331 | 15 | 80 | |
4130 | HR | 90 | 621 | 70 | 483 | 20 | 89 |
SR | 105 | 724 | 85 | 586 | 10 | 95 | |
A | 75 | 517 | 55 | 379 | 30 | 81 | |
N | 90 | 621 | 60 | 414 | 20 | 89 | |
4140 | HR | 120 | 855 | 90 | 310 | 15 | 100 |
SR | 120 | 855 | 100 | 689 | 10 | 100 | |
A | 80 | 552 | 60 | 414 | 25 | 85 | |
N | 120 | 855 | 90 | 621 | 20 | 100 | |
Please note the meaning of below abbreviation in table 2:
HR—-Hot Rolled
CW—-Cold Worked
SR—-Stress Relieved
A—-Annealed
N—-Normalized