Petrochemical & Refinery Seamless Steel Pipe P22 as per ASTM A335 Standard

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

5. Available Size Range

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

Each pipe shall be ultrasonically examined full section over its entire length. If it is not possible to perform the examination prior to the pieces being cut to final length, the area on each end of each piece not accessible for examination (dead zone), if any, shall be examined by a procedure approved by customers that employs a nondestructive examination method.