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P12 Alloy Steel Seamless Pipes ASTM A335 Standard Fixed / Random Length

Categories Seamless Steel Pipe
Brand Name: XOOS
Model Number: P12
Certification: MTC
Place of Origin: China
MOQ: 10 tons or negotiable
Payment Terms: L/C, T/T
Supply Ability: 200000 tons per month
Delivery Time: 4~15 weeks
Packaging Details: bare and loose
Material: Alloy Steel
Standard: ASTM A335
Structure: Seamless
Max. Size: 56''
Application: Power Plant
Length: Fixed or Random
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P12 Alloy Steel Seamless Pipes ASTM A335 Standard Fixed / Random Length

P12 Seamless Steel Pipe ASTM A335 Standard for Thermal Power Plant

Specialized in providing various steel pipes for more than 10 years, XOOS offers ASTM A335 P12 seamless large caliber & heavy wall thickness pipe with competitive price, premium quality and flexible delivery time. Third party inspection is available.

1. Standards:
ASTM A335 Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service

2. Application:
For the low and medium pressure boiler and steam header pipes;
For the high-pressure boiler and steam pipes, and the petrochemical industry pipes;
Power plant; Chemical Fertilizer; Petrochemicals; Offshore Oils; Gas Productions; Refineries and etc.

3. Ordering Information

Quantity (feet, meters, or number of lengths),

Name of material (seamless alloy steel pipe),

Grade (P12),

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



Composition, %
P12K115620.05-0.150.30-0.610.0250.0250.50 max0.80-1.250.44-0.65...

5. Available Size Range

88.9~14223''~ 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.: 32ks / 220MPa

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

Product analysis shall be made on each length of pipe. Individual lengths failing to conform to the chemical composition requirements shall be rejected.

S2. Transverse Tension Tests

A transverse tesnion test shall be made on a specimen from one end or both ends of each pipe NPS 8 and over. If this supplementary requirement is specified, the number of tests per pipe shall also be specified. If a specimen from any length fails to meet the required tensile properties (tensile, yield, and elongation), that length shall be rejected subject to retreatment in accordance with Specification A999/A999M and satisfactory retest.

S3. Flattening Test

S4. Metal Structure and Etching Tests

S5. Photomicrographs

S6. Photomicrographs for Individual Pieces

S7. Alternative Heat Treatment -Grade P91

S8. Melting Practice - Grades P2 and P12

Specific limits, if any, on grain size or deoxidation practice shall be a matter of agreement between the manufacturer and purchaser.

Product Tags:

round steel tubing


steel tube pipe

Quality P12 Alloy Steel Seamless Pipes ASTM A335 Standard Fixed / Random Length for sale
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