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Products - Seamless medium-carbon steel boiler and superheater tubes
ASTM A210
Size: OD13.7-114.3mm
WT0.9-16.5mm
Length22000mm Max.
| Description: |
| 1. Tubes are made by the seamless process and are cold finished. |
| 2. Cold-finished tubes are given a subcritical anneal, a full anneal, or a normalizing heat treatment after the final cold finishing process. |
| 3. If pickling or shot blasting or both are required, this shall be specifically stated in the order. |
| Chemical composition |
| |
Grade A-1 |
Grade C |
| C: |
0.27% Max. |
0.35% Max. |
| Mn: |
0.93% Max. |
0.29-1.06% |
| P: |
0.035% Max. |
0.035% Max. |
| S: |
0.035% Max. |
0.035% Max. |
| Si: |
0.10% Min. |
0.10% Min. |
|
| Mechanical properties |
| |
Grade A-1 |
Grade C |
| Tensile strength: |
415MPa Min. |
485MPa Min. |
| Yield strength: |
255MPa Min. |
275MPa Min. |
| Elongation (in 50mm): |
30% Min. |
30% Min. |
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