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ASTM A335 P91 & P92 Seamless Steel Tubes High Temperature Chromium Molybdenum Alloy for Supercritical Power Plants
ASTM A335 P91 & P92 Seamless Steel Tubes High Temperature Chromium Molybdenum Alloy for Supercritical Power Plants
ASTM A335 P91 & P92 Seamless Steel Tubes High Temperature Chromium Molybdenum Alloy for Supercritical Power Plants
ASTM A335 P91 & P92 Seamless Steel Tubes High Temperature Chromium Molybdenum Alloy for Supercritical Power Plants
ASTM A335 P91 & P92 Seamless Steel Tubes High Temperature Chromium Molybdenum Alloy for Supercritical Power Plants
ASTM A335 P91 & P92 Seamless Steel Tubes High Temperature Chromium Molybdenum Alloy for Supercritical Power Plants
ASTM A335 P91 & P92 Seamless Steel Tubes High Temperature Chromium Molybdenum Alloy for Supercritical Power Plants
ASTM A335 P91 & P92 Seamless Steel Tubes High Temperature Chromium Molybdenum Alloy for Supercritical Power Plants
Specifications
Brand Name :
YUHONG
Model Number :
ASTM A335 P91 & P92
Certification :
ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin :
CHINA
MOQ :
500KGS
Price :
Negotiable
Payment Terms :
L/C, T/T
Supply Ability :
800 Tons/ Month
Delivery Time :
15-20 Days
Packaging Details :
Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Standard :
ASTM A335/ASME SA335
Material Grade :
P91 (UNS K91560) & P92 (UNS K92460)
Product Type :
Seamless Steel Tubes
Application :
Power Plant Boilers, High Temperature Piping
Size Range :
OD 1/2" to 24"
NDT Requirements :
UT, ET, HT Available
Description

ASTM A335 P91 & P92 Seamless Steel Tubes High Temperature Chromium Molybdenum Alloy for Supercritical Power Plants

YUHONG GROUP​ is a specialized manufacturer with 35 years of experience in producing high-performance seamless steel tubes. Our ASTM A335 P91 & P92 chromium-molybdenum alloy tubes are engineered for supercritical power plants, offering exceptional high-temperature strength and oxidation resistance for global energy applications.

Chemical Composition Comparison: Grade P91 vs. P92

Element​ P91 (UNS K90901) Requirement, %​ P92 (UNS K92460) Requirement, %​
Carbon (C)​ 0.08 - 0.12 0.07 - 0.13
Manganese (Mn)​ 0.30 - 0.60 0.30 - 0.60
Phosphorus (P), max​ 0.02 0.02
Sulfur (S), max​ 0.01 0.01
Silicon (Si)​ 0.20 - 0.50 0.50 max
Chromium (Cr)​ 8.00 - 9.50 8.50 - 9.50
Molybdenum (Mo)​ 0.85 - 1.05 0.30 - 0.60
Vanadium (V)​ 0.18 - 0.25 0.15 - 0.25
Niobium (Nb)​ 0.06 - 0.10 0.04 - 0.09
Nitrogen (N)​ 0.03 - 0.07 0.03 - 0.07
Nickel (Ni), max​ 0.4 0.4
Aluminum (Al), max​ 0.04 0.04
Tungsten (W)​ - 1.50 - 2.00
Boron (B)​ - 0.001 - 0.006

Heat Treatment Requirements: Grade P91 vs. P92

Parameter​ P91 (Type 1 & 2)​ P92​ Key Notes​
Grade​ P91 P92 Both are high-strength creep-resistant alloy steels.
Heat Treat Type​ Normalize and Temper or Quench and Temper​ Normalize and Temper A key difference: P91 allows for the alternative of Quenching.
Normalizing Temperature​ 1900-1975 °F [1040-1080 °C] 1900-1975 °F [1040-1080 °C] The austenitizing temperature range is identical.
Cooling Media​ Air or Accelerated Cooling Air P91 allows for accelerated cooling.
Tempering Temperature​ 1350-1470 °F [730-800 °C] 1350-1470 °F [730-800 °C] The tempering temperature range is identical.
P91:​ The maximum permissible tempering temperature is 1470 °F [800 °C].

Tensile Requirements Comparison: Grade P91 vs. P92

Property​ P91 (Type 1 and Type 2)​ P92​ Notes​
Grade​ P91 P92, P93, P911, P36 Class 1 P92 shares its requirements with other advanced grades.
Tensile Strength, min​ 85 ksi 585 MPa 90 ksi
Yield Strength (0.2% Offset), min​ 60 ksi 415 MPa 64 ksi

Application Advantages of ASTM A335 P91 & P92 Seamless Steel Tubes

1. Excellent High-Temperature Performance​
The P91 and P92 chromium-molybdenum alloy composition provides outstanding high-temperature strength and oxidation resistance, making them ideal for supercritical and ultra-supercritical power plants operating at temperatures up to 650°C.
2 . Superior Creep Resistance​
These tubes offer excellent long-term creep resistance under high-temperature and high-pressure conditions, ensuring reliable performance in boiler systems, heat exchangers, and high-temperature piping applications.
3 . Enhanced Durability and Service Life​
With superior resistance to thermal fatigue and oxidation, P91 and P92 tubes maintain structural integrity over extended periods, reducing maintenance requirements and increasing the lifespan of power generation equipment.
4. Global Standard Compliance​
Manufactured in full compliance with ASTM A335/ASME SA335 international standards, these tubes are certified for use in critical applications worldwide, ensuring quality and safety across different markets.
5 . Wide Application Versatility​
Suitable for various high-temperature environments, including power plant boilers, petrochemical processing units, and high-temperature pipeline systems, providing flexible solutions for diverse industrial needs.

ASTM A335 P91 & P92 Seamless Steel Tubes High Temperature Chromium Molybdenum Alloy for Supercritical Power Plants

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ASTM A335 P91 & P92 Seamless Steel Tubes High Temperature Chromium Molybdenum Alloy for Supercritical Power Plants

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Product Detail
Brand Name :
YUHONG
Model Number :
ASTM A335 P91 & P92
Certification :
ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin :
CHINA
MOQ :
500KGS
Price :
Negotiable
Contact Supplier
ASTM A335 P91 & P92 Seamless Steel Tubes High Temperature Chromium Molybdenum Alloy for Supercritical Power Plants
ASTM A335 P91 & P92 Seamless Steel Tubes High Temperature Chromium Molybdenum Alloy for Supercritical Power Plants
ASTM A335 P91 & P92 Seamless Steel Tubes High Temperature Chromium Molybdenum Alloy for Supercritical Power Plants
ASTM A335 P91 & P92 Seamless Steel Tubes High Temperature Chromium Molybdenum Alloy for Supercritical Power Plants

Yuhong Group Co.,Ltd

Verified Supplier
14 Years
zhejiang, ningbo
Since 2007
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Stainless Steel Seamless Pipe, Stainless Steel Seamless Tube, Duplex Stainless Steel Pipe
Total Annual :
50M-70M
Employee Number :
50~850
Certification Level :
Verified Supplier
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