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Xi'an Tiptop Machinery Co., Ltd.

Good quality Seamless Carbon Steel Pipe for sales
Good quality Seamless Carbon Steel Pipe for sales
Good company with professional service and high quality. Delivered in time. Our most trusted partner for alloy steel pipes.

—— Brent

The P91 and P22 supplied from XOOS fully satisfies requirement of our project in Brazil. Good to work with XOOS team.

—— Nicolas

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P91 Seamless Steel Pipe Hot Rolled ASTM A335 Standard High Temperature Service

China P91 Seamless Steel Pipe Hot Rolled ASTM A335 Standard High Temperature Service supplier
P91 Seamless Steel Pipe Hot Rolled ASTM A335 Standard High Temperature Service supplier P91 Seamless Steel Pipe Hot Rolled ASTM A335 Standard High Temperature Service supplier

Large Image :  P91 Seamless Steel Pipe Hot Rolled ASTM A335 Standard High Temperature Service

Product Details:

Place of Origin: China
Brand Name: XOOS
Certification: MTC
Model Number: P91

Payment & Shipping Terms:

Minimum Order Quantity: 10 ton or negotiable
Packaging Details: bundle or bare & loose
Delivery Time: 2~10 weeks
Payment Terms: L/C, T/T
Supply Ability: 200000 tons per month
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Detailed Product Description
Material: P91 Manufacture: Hot Rolled
Max. Size: 56'' Structure: Seamless
Application: Thermal Power Plant Steel: Alloy Steel

Thermal Power Plant P91 Seamless Pipe for High Temperature Service

 

The pipe of P91 is mainly used in thermal power and petrochemical & refinery field. Mechanical properties and dimensions are uniform in longitudinal & transversal directions. Pipe has better surface and without any defects.

 

1. Reference Documents

  • ASTM A999/A 999M Specification for General requirements for Alloy and Stainless Steel Pipe.
  • ASTM E 213 Practice for Ultrasonic Examination of metal Pipe and Tubing
  • ASTM E 309 Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation
  • ASTM E 381 Method of Macroetch testing Steel Bars, Billets, Blooms, and Forgings
  • ASTM E 570 Practice for Flux Leakage Examination of Ferromagnetic Steel Tubular Products
  • ASME B26.10M Welded and Seamless Wrought Steel Pipe

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

 

3. Application:
For high pressure boiler and steam header pipes; petrochemical industry pipes; thermal power plant; nuclear power plant; USC boiler.

 

4. 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)

 

5. 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

 

6. 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.

 

7. Tensile Requirements

Tensile Strength min.: 85ksi / 585MPa

Yield Strength min.: 64ks / 415MPa

 

8. Inspection & Test

Chemical composition, mechanical properties ( tensile strength, yield strength, elongation, flaring, flattening, bending, hardness, impact test), surface and dimension, NDE, hydrostatic test.

 

9. Manufacture

Hot Rolled for 8'' and above or Cold Drawn for 6'' and below

 

10. Manufacturing Process

Raw Material Inspection → Cold Centering → Heating → Piercing & Rolling → SIzing → Heat Treatment → Testing → Finishing → NDE → Visual & Dimension Inspection → Marking → Storing & Shipping

 

11. 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

 

We can also accept additional requirements beyond of standard, including:

The ratio of Nitrogen to Aluminum shall be a minimum of 4.

Minimum hardness based on material certificates shall be 210HV 9200HB) (93.4HRB).

Impact value must be 27J at 20°C.

 

 

P91 Seamless Steel Pipe Hot Rolled ASTM A335 Standard High Temperature Service

 

Contact Details
Xi'an Tiptop Machinery Co., Ltd.

Contact Person: Sales Manager

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