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Power Plant A/SA106 Gr. C MWT Pipe for Theraml Power Generation
Apart from the regular wall thickness pipes, TIPTOP is also providing minimum wall thickness A/SA106 Gr. C pipes for power generation.
1. Ordering Information
Quantity (feet, meters, or number of lengths),
Name of material (seamless carbon steel pipe),
Grade (Grade C),
Manufacture (hot-finished or cold-drawn),
Size (NPS/DN and weight class or schedule number, or both; outside diameter and minimum wall thickness; or inside diameter and minimum wall thickness),
Special outside diameter tolerance pipe,
Inside diameter tolerance pipe, over 10 in, (250mm) ID.
Length (specific or random),
Optional requirements,
Test report required,
Special requirements.
2. Standards:
ASTM A106 Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service
3. Application:
Oil, Gas and water delivery; Theraml power plant;
Refinery, Boiler and Mechanical equipment manufacture;
Structure construction; drilling, ship building and etc.
4. Chemical Requirements
| Chemical Requirements | ||||||||||
| Grade | Composition, % | |||||||||
| C | Mn | P | S | Si | Cr | Cu | Mo | Ni | V | |
| max | max | max | min | maxC | maxC | maxC | maxC | maxC | ||
| Grade C | 0.35B | 0.29–1.06 | 0.035 | 0.035 | 0.1 | 0.4 | 0.4 | 0.15 | 0.4 | 0.08 |
A For each reduction of 0.01% below the specified carbon maximum, an increase of 0.06% manganese above the specified maximum will be permitted up to a maximum of 1.35%.
B Unless otherwise specified by the purchaser, for each reduction of 0.01% below the specified carbon maximum, an increase of 0.06% manganese above the specified maximum will be permitted up to a maximum of 1.65%.
C These five elements combined shall not exceed 1%.
5. Mechanical Properties
Tensile Strength, min: 70ksi/485MPa
Yield Strength, min: 40ksi/275MPa
6. Manufacturing Process
Raw Material Inspection → Cold Centering → Heating → Piercing & Rolling → SIzing → Heat Treatment → Testing → Finishing → NDE → Visual & Dimension Inspection → Marking → Storing & Shipping
7. Available Size Range
| OD | Thickness | ||
| mm | inch | mm | SCH |
| 88.9~1422 | 3''~ 56'' | 2.11~140 | ≥SCH10 |
| *If the steel grades and size you are looking for are not listed above, please contact us for further information. | |||
8. Heat Treatment
Hot-finished pipe need not be heat treated. Cold-drawn pipe shall be heat treated after the final cold draw pass at a temperature of 1200°F(650°C) or higher.
9. Supplementary Requirements
S1 Product Analysis
S2 Transverse Tension Test
S3 Flattening Test, Standard
S4 Flattening Test, Enhanced
S5 Metal Structure and Etching Test
S6 Carbon Equivalent
S7 Heat Treated Test Specimens
S8 Internal Cleanliness-Government Orders
S9 Requirements for Carbon Steel Pipe for Hydrofluoric Acid Alkylation Service
10. Additional Requirement for MWT Pipe
- For "MWT" pipe, a minimum of four wall thickness measurements 90 degress parts shall be made on each end of all pipe and the dimensional inspection record (OD, weight, wall thickness & length) per each pipe shall be included in material certification.
- Tolerance of wall thickness for "MWT" pipe: +5%~23%
- Each pipe shall be hydro-tested at the factory as per ASTM A530.
- Each pipe shall be ultrasonic tested.
