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YUHONG HOLDING GROUP CO., LTD

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  3. ASME SA335 P91 P92 Seamless Alloy Steel Boiler Tube，High Temp Pressure for Power
China ASME SA335 P91 P92 Seamless Alloy Steel Boiler Tube，High Temp Pressure for Power
China ASME SA335 P91 P92 Seamless Alloy Steel Boiler Tube，High Temp Pressure for Power

  1. China ASME SA335 P91 P92 Seamless Alloy Steel Boiler Tube，High Temp Pressure for Power
  2. China ASME SA335 P91 P92 Seamless Alloy Steel Boiler Tube，High Temp Pressure for Power
  3. China ASME SA335 P91 P92 Seamless Alloy Steel Boiler Tube，High Temp Pressure for Power
  4. China ASME SA335 P91 P92 Seamless Alloy Steel Boiler Tube，High Temp Pressure for Power

ASME SA335 P91 P92 Seamless Alloy Steel Boiler Tube，High Temp Pressure for Power

  1. MOQ： 500 KGS
  2. Price： Negotiable
  3. Get Latest Price
Payment Terms T/T, L/C at sight
Supply Ability 1000 TONS / month
Delivery Time Depends on order quantity
Packaging Details Steel frame wooden case with plastic cap
Standard ASTM A335
Material Grade P91 P92
Form Seamless Pipe
Diameter 3.18-152.4mm
Wall Thickness 0.41mm - 25.4mm
Applications Boilers, heat exchangers, superheaters, HRSG
Brand Name YUHONG
Model Number ASTM A335 P91 P92
Certification ISO 9001/TUV/PED
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T, L/C at sight Supply Ability 1000 TONS / month
Delivery Time Depends on order quantity Packaging Details Steel frame wooden case with plastic cap
Standard ASTM A335 Material Grade P91 P92
Form Seamless Pipe Diameter 3.18-152.4mm
Wall Thickness 0.41mm - 25.4mm Applications Boilers, heat exchangers, superheaters, HRSG
Brand Name YUHONG Model Number ASTM A335 P91 P92
Certification ISO 9001/TUV/PED Place of Origin China
High Light ASME SA335 P91 alloy boiler tube ，high temperature pressure boiler tube ，seamless steel superheater tube

 

 

ASME SA335 P91 and P92 both belong to the ASME SA-335/SA-335M standard for high-temperature seamless ferritic alloy steel pipes, and are specialized pipe materials for high-temperature pressure equipment such as thermal power plants.
 
P91: High-temperature superheaters, reheaters, and main steam pipelines of subcritical/supercritical boilers, and high-temperature pyrolysis units in petrochemical plants.
 
P92: Main steam, high-temperature reheat steam pipelines, and high-pressure bypass systems of ultra-supercritical boilers.
 
 
 
Core Advantages: P92 vs P91 The development of P92 aims to surpass the performance ceiling of P91, with advantages including:
 
 
Stronger high-temperature creep strength: This is P92's most significant advantage. This means that under the same temperature and pressure, thinner wall thicknesses can be designed using P92.
 
Higher service temperature: P92's long-term safe service temperature can reach 625℃, while P91 is generally around 585℃.
 
Better resistance to thermal fatigue: P92's coefficient of linear expansion is similar to P91, both superior to austenitic stainless steel.
 
More weldable: Due to optimized alloy design, P92 is significantly less sensitive to preheating cracks, requiring a zero-crack preheating temperature of approximately 100°C, lower than P91's approximately 180°C. Core Advantages: P92 vs P91
 
 
 
P92 was developed to surpass the performance ceiling of P91, with advantages including:
 
Stronger high-temperature creep strength: This is P92's most significant advantage. This means that under the same temperature and pressure, P92 can be used to design thinner walls (approximately 30%-40% thinner).
 
Higher service temperature: P92's long-term safe service temperature can reach 625°C, while P91 is generally around 585°C.
 
Better resistance to thermal fatigue: P92's coefficient of linear expansion is similar to P91, both superior to austenitic stainless steels.

.

 

 

Chemical Composition
Element P91 P92
Carbon (C) 0.08 - 0.12 0.07 - 0.13
Manganese (Mn) 0.30 - 0.60 0.30 - 0.60
Phosphorus (P) ≤ 0.020 ≤ 0.020
Sulfur (S) ≤ 0.010 ≤ 0.010
Silicon (Si) 0.20 - 0.50 ≤ 0.50
Chromium (Cr) 8.00 - 9.50 8.50 - 9.50
Molybdenum (Mo) 0.85 - 1.05 0.30 - 0.60
Nickel (Ni) ≤ 0.40 ≤ 0.40
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
Tungsten (W) — 1.50 - 2.00
Boron (B) — 0.001 - 0.006
Aluminum (Al) ≤ 0.02 ≤ 0.04

 

 

Mechanical Properties (Room Temperature)
Property P91 P92
Tensile Strength (min.) ≥ 585 MPa ≥ 620 MPa
Yield Strength 0.2% offset (min.) ≥ 415 MPa ≥ 440 MPa
Elongation (min.) ≥ 20% ≥ 20%
Hardness (HBW) 170 - 248 170 - 248

 

 

Application:

 

  • Nuclear Power Plants: Used in the main steam system piping of some conventional islands, and high-temperature components such as steam generators.
  • Chemical/Fertilizer Industry: Used in high-temperature and high-pressure reactors, heat exchangers, and process piping.
  • Solar Thermal Power Generation: Used in molten salt or steam heat transfer piping systems for concentrated solar thermal power generation, meeting high-temperature durability requirements.
  • Industrial High-Pressure Boilers: Water-cooled walls and superheater tubes.

 

 

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer,Exporter,Trading Company,Seller

  • Year Established:

    1990

  • Total Annual:

    50M-75M

  • Employee Number:

    50~850

  • Ecer Certification：

    Verified Supplier

Yuhong Holding Group equipments production base at Jiangsu Jiangyin City, Jinjiang City and Yancheng City. Total production area around 184000 square meters, main products : Heat Exchanger, Condenser, Pressure Vessel , Fired Heater, Economizer, Columns, Reactor.     ... Yuhong Holding Group equipments production base at Jiangsu Jiangyin City, Jinjiang City and Yancheng City. Total production area around 184000 square meters, main products : Heat Exchanger, Condenser, Pressure Vessel , Fired Heater, Economizer, Columns, Reactor.     ...

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Get in touch with us

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  • YUHONG HOLDING GROUP CO., LTD
  • 20 Floor, No.1 New World Building, NO.1018 Min'an Road, Yinzhou District, Ningbo, China, ZIP:315040
  • https://www.tema-heatexchanger.com/

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