High-temperature Service Corrosion Resistant Seamless Alloy Pipe A355P91 with OD 6-630mm for Industrial Applications

Price Negotiable
Price: US $680-1,830 / Ton
MOQ: 1 Ton
Delivery Time: Negotiable
Product Description
X10CrMoVNb9-1 Alloy Steel Seamless Pipes for High-Temperature Service (T91/P91)
Grade T/P91 is a ferritic-martensitic steel containing 9% chromium and 1% molybdenum, micro-alloyed with vanadium and niobium, with controlled nitrogen content according to ASTM A335, A213, or EN 10216-2 standards under the designation X10CrMoVNb9-1.
Applications
On fossil-fueled power plants, this grade is primarily used for high-temperature applications in superheater and reheater tubes, headers, and steam piping (main steam and hot reheat).
Performance Advantages
  • Excellent elevated-temperature strength and creep behavior up to 580°C - 600°C
  • 9% chromium content provides superior corrosion and oxidation resistance compared to grade 22
  • Reduced weight of boiler and piping components enables higher resistance to thermal fatigue
  • Higher heat transfer and lower thermal expansion coefficients compared to austenitic steels
Available Specifications
Standard wall thicknesses: STD, 40, XH, 60, 80, 100, 120, 140, 160, XXH
Special customer-designated nominal and minimum wall thicknesses can also be furnished. Non-standard OD & ID are available.
Best Pipeline can offer pipe from turned and bored forgings in accordance with Specifications A/SA369 when client requirements for size, wall thickness, quantity, or delivery cannot be met by material available under Specifications A/SA335.
A/SA369 material is manufactured in grades including FP11, FP22, FP5, FP9, FP91, and FP92 corresponding to the same grades listed for A/SA335.
Material Grades and Equivalents
Carbon Steel and Alloy Steel
EN/DIN Grade Steel Standard
P235GH 1.0345 EN10216-2
P265GH 1.0425 EN10216-2
16Mo3 1.5415 EN10216-2
15NiCuMoNb5-6-4 1.6368 EN10216-2
13CrMo4-5 1.7335 EN10216-2
10CrMo9-10 1.7380 EN10216-2
X11CrMo5 1.7362 EN10216-2
X11CrMo9-1 1.7386 EN10216-2
X10CrMoNVb9-1 1.4903 EN10216-2
X10CrwMoVNb9-2 1.4901 EN10216-2
International Standards
Standard Country Description
ASTM USA American Society of Mechanical Engineers
AISI USA Acronym of American Iron and Steel Institute
JIS JP Japanese Industrial Standards
DIN GER Deutsches Institut fur Normung e.V.
UNS USA Unified Numbering System
Product Gallery
X10CrMoVNb9-1 alloy steel seamless pipe product display High-temperature alloy pipe manufacturing quality inspection Alloy steel pipe industrial application in power plant systems

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Company JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person Gao Ben

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