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| Mechanical Tubes |
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| ASTM A519 |
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| Chemical Composition |
| Grade |
C % |
Si % |
Mn % |
P % |
S % |
Mo % |
Cr % |
| 1020 |
0.18-0.23 |
/ |
0.30-0.60 |
0.040 max |
0.050 max |
/ |
/ |
| 1025 |
0.22-0.28 |
/ |
0.30-0.60 |
0.040 max |
0.050 max |
/ |
/ |
| 1035 |
0.32-0.38 |
/ |
0.60-0.90 |
0.040 max |
0.050 max |
/ |
/ |
| 1045 |
0.43-0.50 |
/ |
0.60-0.90 |
0.040 max |
0.050 max |
/ |
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| 4130 |
0.28-0.33 |
0.15-0.35 |
0.40-0.60 |
0.040 max |
0.040 max |
0.15-0.25 |
0.80-1.10 |
| 4140 |
0.38-0.43 |
0.10-0.35 |
0.75-1.00 |
0.040 max |
0.040 max |
0.15-0.25 |
0.80-1.10 |
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| Mechanical Properties |
| Grade |
Tensile Strength MPa1 |
Yield Strength MPa1 |
Tensile Strength MPa2 |
Yield Strength MPa2 |
| 1020 |
331 |
193 |
379 |
234 |
| 1025 |
365 |
207 |
379 |
248 |
| 1035 |
414 |
228 |
448 |
276 |
| 1045 |
448 |
241 |
517 |
331 |
| 4130 |
517 |
379 |
621 |
414 |
| 4140 |
552 |
414 |
855 |
621 |
1. Annealed 2. Normalized *Also provide NBK heat treatment. |
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