Xi'an New Force Energy Engineering Co.,Ltd
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Seamless Alloy Steel Boiler Pipe P22 457 * 120mm for Thermal Power Plant
Specialized in providing various steel pipes for more than 10 years, TIPTOP offers ASTM A335 seamless large caliber & heavy wall thickness pipe with competitive price, premium quality and flexible delivery time. Third party inspection is available.
We supply a full range of ASTM A335 P22 alloy pipe schedules ranging from Sch 10 thru Double Extra Heavy, we deliver ASTM A335 P22 alloy pipe with Exceptional sizes & Quality.
1. Standards:
ASTM A335 Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
2. Application:
For high pressure boiler and steam header pipes; petrochemical industry pipes; thermal power plant; nuclear power plant; USC boiler.
3. Ordering Information
Quantity (feet, meters, or number of lengths),
Name of material (seamless alloy steel pipe),
Grade (P22),
Manufacture (hot-finished or cold-drawn),
Size using one of the following:
NPS and schedule number;
Outside diameter and nominal wall thickness;
Outsider diameter and minimum wall thickness;
Inside diameter and nominal wall thickness;
Inside Diameter and minimum wall thickness.
Length (specific or random)
End finish (plain end or bevel end)
4. Chemical Requirements
| Chemical Requirements | |||||||||
| Grade | UNS Designation | Composition, % | |||||||
| C | Mn | P max | S max | Si | Cr | Mo | Others | ||
| P22 | K21590 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50 max | 1.90-2.60 | 0.87-1.13 | ... |
5. 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. | |||
6. Tensile Requirements
Tensile Strength min.: 60ksi / 415MPa
Yield Strength min.: 30ks / 205MPa
7. Inspection & Test
Chemical composition, mechanical properties ( tensile strength, yield strength, elongation, flaring, flattening, bending, hardness, impact test), surface and dimension, NDE, hydrostatic test.
8. Manufacture
Hot Rolled or Cold Drawn
9. Manufacturing Process
Raw Material Inspection → Cold Centering → Heating → Piercing & Rolling → SIzing → Heat Treatment → Testing → Finishing → NDE → Visual & Dimension Inspection → Marking → Storing & Shipping
10. Supplementary Requirements
S1. Product Analysis
S2. Transverse Tension Tests
S3. Flattening Test
S4. Metal Structure and Etching Tests
S5. Photomicrographs
S6. Photomicrographs for Individual Pieces
