Seamless ferritic and austenitic alloy steel boiler, superheater, and heat exchanger tubes.
Chemical Properties:
| Carbon: 0.15 max. | Silicon: 0.50 max. |
| Manganese: 0.30-0.60 | Nickel: n/a |
| Potassium: 0.025 | Chromium: 4.00-6.00 |
| Sulfur: 0.025 | Molybdenum: 0.45-0.65 |
Mechanical Properties:
Tensile Strength:
ksi: 60
MPa: 414
Yield:
ksi: 30
MPa: 207
Elongation in 2in. or 50mm, min. %: 30
Max. Hardness Rockwell B: 85
