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High Pressure Seamless Alloy Steel Tube P92 56 Inch OD Heat Resistant Long

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High Pressure Seamless Alloy Steel Tube P92 56 Inch OD Heat Resistant Long

Brand Name : XOOS
Model Number : 56''
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 : 5~10 weeks
Packaging Details : bare and loose
Steel : Alloy Steel
Application : High Pressure Boiler
Material : P92
Standard : ASTM A335
Size : 1422mm x 140mm
OD : 56''
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High Pressure Boiler Tube Alloy Steel ASTM A335 P92 56'' 1422mm x 140mm

In order to improve the heat efficiency of reheating steam pipeline in power plant, the reheating-temperature can be designed as high as 621°C, which is known as the super-critical temperature. The Unite States firstly developed ASTM A335 P92 alloy steel in late 1980’s to meet the heat-resisting requirements of such a high-temperature power unit. The alloy steel P92 is an improved version of ASTM A335 P91 alloy which has deliberate addition of tungsten, vanadium, niobium, decreased amount of molybdenum to fine-tune to ferrite/austenite ratio, as well as carefully controlled amount of boron and nitrogen.

1. Standards

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. Dimensional Tolerance

Pipe typesOD (mm)ToleranceWT (mm)Tolerance
High Pressure Boiler Tube219~457±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:

GradeUNS DesignationComposition, %
P92K924600.07-0.130.30-0.600.020.010.50 max8.50-9.500.30-0.600.40.15-0.25N 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

6. Mechanical Properties

Steel pipes No.Tensile strengthYield strengthElongationImpact energyHardness

7. 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.

MTC sample would be provided upon request.

For additional requirements on chemical composition, mechanical properties or supplementary requirements, please contact us for customization!

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seamless boiler tube


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