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ASTM A335 P91 High Pressure Boiler Tube Alloy Steel 56'' OD 1422 X 100mm Size

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

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

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ASTM A335 P91 High Pressure Boiler Tube Alloy Steel 56'' OD 1422 X 100mm Size

ASTM A335 P91 High Pressure Boiler Tube Alloy Steel 56'' OD 1422 X 100mm Size
ASTM A335 P91 High Pressure Boiler Tube Alloy Steel 56'' OD 1422 X 100mm Size ASTM A335 P91 High Pressure Boiler Tube Alloy Steel 56'' OD 1422 X 100mm Size

Large Image :  ASTM A335 P91 High Pressure Boiler Tube Alloy Steel 56'' OD 1422 X 100mm Size

Product Details:

Place of Origin: China
Brand Name: NEW FORCE
Certification: MTC
Model Number: 56''

Payment & Shipping Terms:

Minimum Order Quantity: 10 tons or negotiable
Packaging Details: bare and loose
Delivery Time: 5~10 weeks
Payment Terms: L/C, T/T
Supply Ability: 200000 tons per month
Detailed Product Description
Steel: Alloy Steel Application: High Pressure Boiler
Material: P91 Standard: ASTM A335
Size: 1422mm X 100mm OD: 56''
High Light:

seamless boiler tube

,

seamless tube pipe

ASTM A335 P91 High Pressure Boiler Tube Alloy Steel 56'' OD 1422 X 100mm Size

Grade 91 contains 9 % Chromium and 1 % Molybdenum compared to 2.5 % Chromium in the next best P22 grade. Chromium improves high temperature strength and increases oxidation resistance. Molybdenum increases the creep resistance. Also present are smaller quantities of Nickel and Manganese which increase the hardenability of the steel.

 
More important than the alloying elements is the formation of this alloy steel. The steel is formed by normalizing at 1050 °C, air cooling down to 200 °C. It is then tempered by heating to 760 °C. The temperatures and the cooling rates are very important. This produces the microstructure that results in the high creep strength properties.
 

1. Standards

ASTM A106 ——Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service

ASTM A335 ——Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service

 

2. Application

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. Steel pipes No. of main production:

ASTM A335 Grade P5, P9, P11, P12, P22, P91, P92

ASTM A106 Grade B, C

 

4. Dimensional Tolerance

Pipe types OD (mm) Tolerance WT (mm) Tolerance
High Pressure Boiler Tube 219~457 ±1.0% ≤20 -10% ~ +12.5%
20~40 -10% +10%
457~1422 ±0.9% >40~70 -7%, +9%
>70~20 -6%, +8%

 

5. Chemical Composition:

High Pressure Boiler Tube Chemical Requirements
Standard Grade UNS Designation Composition, %
C Mn P S Si Cr Mo Ni V Others
ASTM A335 P5 K41545 0.15max 0.30-0.60 0.025 0.025 0.50max 4.00-6.00 0.45-0.65     ...
P9 S50400 0.15max 0.30-0.60 0.025 0.025 0.25-1.00 8.00-10.00 0.90-1.10     ...
P11 K11597 0.05-0.15 0.30-0.60 0.025 0.025 0.50-1.00 1.00-1.50 0.44-0.65     ...
P12 K11562 0.05-0.15 0.30-0.61 0.025 0.025 0.50 max 0.80-1.25 0.44-0.65     ...
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     ...
P91 K91560 0.08-0.12 0.30-0.60 0.02 0.01 0.20-0.50 8.00-9.50 0.85-1.05 0.4 0.18-0.25 N 0.030-0.070
Al 0.02max
Cb 0.06-0.10
Ti 0.01 max
Zr 0.01max
P92 K92460 0.07-0.13 0.30-0.60 0.02 0.01 0.50 max 8.50-9.50 0.30-0.60 0.4 0.15-0.25 N 0.03-0.07
Al 0.02 max
Cb 0.04-0.09
W 1.5-2.00
B 0.001-0.006
Ti 0.01 max
Zr 0.01 max
ASTM A106 Grade B   0.3 0.29–1.06 0.035 0.035 0.1 0.4 0.15 0.4 0.08  
Grade C   0.35 0.29–1.06 0.035 0.035 0.1 0.4 0.15 0.4 0.08  

 

6. Mechanical Properties

Standards Steel pipes No. Tensile strength Yield strength Elongation Impact energy Hardness
(Mpa) (Mpa) (%) (J)
ASTM A335 P5 ≥415 ≥205 ≥22 ≥35 ≤187HB
P9 ≥415 ≥205 ≥22 ≥35  
P11 ≥415 ≥205 ≥22 ≥35 ≤163HB
P12 ≥415 ≥220 ≥22 ≥35 ≤163HB
P22 ≥415 ≥205 ≥22 ≥35 ≤163HB
P91 585~760 ≥415 ≥20 ≥35 ≤250HB
P92 ≥620 ≥440 ≥20 ≥35 ≤250HB
ASTM A106 Grade B ≥415 ≥240 ≥22 ≥35 /
Grade C ≥485 ≥275 ≥20 ≥35 /

 

7. 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.

 

ASTM A335 P91 High Pressure Boiler Tube Alloy Steel 56'' OD 1422 X 100mm Size 0

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