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Products - Seamless ferritic alloy steel pipe for high-temperature service
ASTM A335
Size: OD16-89mm
WT2-20mm
Length16000mm Max.
Description:
1. Tubes are made by the seamless process and are cold drawn.
| Chemical composition |
| |
T2 |
T11 |
T12 |
T22 |
T23 |
T91 |
| Carbon |
0.10-0.20 |
0.05-0.15 |
0.05-0.15 |
0.05-0.15 |
0.04-0.10 |
0.08-0.12 |
| Manganese |
0.30-0.61 |
0.30-0.60 |
0.30-0.61 |
0.30-0.60 |
0.10-0.60 |
0.30-0.60 |
| Phosphorus |
0.025 |
0.025 |
0.025 |
0.025 |
0.03, Max. |
0.02 |
| Sulfur |
0.025 |
0.025 |
0.025 |
0.025 |
0.01, Max. |
0.01 |
| Silicon |
0.10-0.30 |
0.50-1.00 |
0.5, Max. |
0.5, Max. |
0.5, Max. |
0.20-0.50 |
| Nickel |
|
|
|
|
|
0.4, Max. |
| Chromium |
0.50-0.81 |
1.00-1.50 |
0.80-1.25 |
1.90-2.60 |
1.90-2.60 |
8.0-9.50 |
| Molybdenum |
0.44-0.65 |
0.44-0.65 |
0.44-0.65 |
0.87-1.13 |
0.05-0.30 |
0.85-1.05 |
| Vanadium |
|
|
|
|
0.20-0.30 |
0.18-0.25 |
| Boron |
|
|
|
|
0.0005-0.006 |
|
| Niobium |
|
|
|
|
0.02-0.08 |
0.06-0.1 |
| Nitrogen |
|
|
|
|
0.03, Max. |
0.03-0.07 |
| Aluminum |
|
|
|
|
0.03, Max. |
0.04, Max. |
| Columbium |
|
|
|
|
0.02-0.08 |
0.06-0.10 |
|
