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

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

ASME SA335 P91 alloy boiler tube

high temperature pressure boiler tube

seamless steel superheater tube

उत्पत्ति के प्लेस:

चीन

ब्रांड नाम:

YUHONG

प्रमाणन:

ISO 9001/TUV/PED

मॉडल संख्या:

एएसटीएम ए335 पी91 पी92

अब बात करें
बोली मांगें
उत्पाद का विवरण
मानक:
एएसटीएम ए335
सामग्री ग्रेड:
पी91 पी92
रूप:
सीवनरहित पाइप
व्यास:
3.18-152.4 मिमी
दीवार की मोटाई:
0.41मिमी - 25.4मिमी
अनुप्रयोग:
बॉयलर, हीट एक्सचेंजर्स, सुपरहीटर्स, एचआरएसजी
प्रमुखता देना:

ASME SA335 P91 alloy boiler tube

,

high temperature pressure boiler tube

,

seamless steel superheater tube

भुगतान और शिपिंग शर्तें
न्यूनतम आदेश मात्रा
500 किलोग्राम
मूल्य
विनिमय योग्य
पैकेजिंग विवरण
प्लास्टिक टोपी के साथ स्टील फ्रेम लकड़ी का केस
प्रसव के समय
ऑर्डर मात्रा पर निर्भर करता है
भुगतान शर्तें
टी/टी, एल/सी नजर में
आपूर्ति की क्षमता
1000 टन/माह
उत्पाद का वर्णन

 

 

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.

 

 

ASME SA335 P91 P92 Seamless Alloy Steel Boiler Tube,High Temp Pressure for Power Plant Boiler, Superheater 0

रेटिंग और समीक्षा

कुल मिलाकर रेटिंग

4.3
इस आपूर्तिकर्ता के लिए 50 समीक्षाओं पर आधारित

रेटिंग स्नैपशॉट

निम्नलिखित सभी रेटिंग का वितरण है
5 सितारे
33%
4 सितारे
67%
3 सितारे
0%
2 सितारे
0%
1 सितारे
0%

सभी समीक्षाएँ

B
Bruce Henderson
Australia Jan 8.2026
Using this reactor for our green hydrogen ammonia pilot project. The 200,000L capacity gives us good scale-up data for commercial facilities. Australian Standards AS1210 compliance was verified by local inspection body—no issues. The vendor's familiarity with high-purity hydrogen service (99.999%) was evident in the material selection and cleaning procedures. Delivery to Port of Newcastle was well-coordinated. Responsive team, professional documentation.
R
Robert Miller
United States Jan 7.2026
Fully meets the rigorous requirements of TEMA R standards. We used these SA266 Grade 2N flanges for a refinery project in Texas. The machining precision is impressive, and the sealing face finish is absolutely perfect.
T
T*i
South Africa Sep 30.2025
Robust construction suitable for our tough operating environment. The vessel handles our coal-to-liquid hydrogenation process with Fischer-Tropsch syncrude—highly corrosive service. The internal cladding overlay (E309L/E347) has shown zero defects after 18 months operation. We appreciate the comprehensive spare parts list and recommended maintenance schedule. The manufacturer even provided on-site supervision during our first catalyst loading. Good value for African market conditions.

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