Xi'an New Force Energy Engineering Co.,Ltd
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Seamless Alloy Steel Tube P91 NDE Plain End Nuclear Power Plant Application
Specialized in providing various steel pipes for more than 10 years, NEW FORCE offers ASTM A335 seamless large caliber & heavy wall thickness pipe with competitive price, premium quality and flexible delivery time. Third party inspection is available.
NEW FORCE P91 pipes have been supplied to many power plants including OPOLE, Duke Edwardport IGCC Projects, HESS NEWARK energy, etc.
A335 P91 pipe is a kind of chrome moly pipes (ASME A/SA335, Chrome-Moly) listed in ASTM A335, which has become a standard in the power generation industry and the petrochemical industry for its tensile strength, corrosion resistance and high temperature strength.
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 (P91),
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 | ||
| P91 | K91560 | 0.08-0.12 | 0.30-0.60 | 0.020 | 0.010 | 0.20-0.50 | 8.00-9.50 | 0.85-1.05 | V 0.18-0.25 |
| N 0.030-0.070 | |||||||||
| Ni 0.40max | |||||||||
| Al 0.02max | |||||||||
| Cb 0.06-0.10 | |||||||||
| Ti 0.01 max | |||||||||
| Zr 0.01max | |||||||||
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.: 85ksi / 585MPa
Yield Strength min.: 64ks / 415MPa
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
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
Please feel free to contact us for your P91 pipe requirements.
