X10CrMoVNb9-1 Alloy Steel Seamless Pipe for High-Temperature Service T91/P91 Grade

Minimum Order Quantity 1 Ton
Price US $830-1,330 / Ton
Product Details
Model NO. P91 Surface Treatment Black
Section Shape Round Outer Diameter 6-630mm
Production Capacity 50000kgs Material Grade X10CrMoVNb9-1
Chromium Content 9% Molybdenum Content 1%
Temperature Resistance 580°C - 600°C Standard ASTM A335, A213, EN10216-2
Wall Thickness STD, 40, XH, 60, 80, 100, 120, 140, 160, XXH Heat Transfer Higher Than Austenitic Steels
Thermal Expansion Lower Than Austenitic Steels Corrosion Resistance Better Than Grade 22
Oxidation Resistance Better Than Grade 22
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X10CrMoVNb9-1 Alloy Seamless Steel Pipe

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High-Temperature Service Alloy Steel Pipe

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T91/P91 Grade High-Temperature Pipe

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Product Description
X10CrMoVNb9-1 Alloy Steel Seamless Pipes for High-Temperature Service T91/P91
Product Name: X10CrMoVNb9-1 Alloy Steel Seamless Pipes for High-temperature Service T91/P91
Definition
Grade T/P91 is a ferritic-martensitic steel containing 9% chromium and 1% molybdenum, micro-alloyed with vanadium and niobium with controlled nitrogen content. This material conforms to ASTM A 335, A 213, and EN 10216-2 standards under the designation X10CrMoVNb9-1.
Applications
Primarily used in fossil-fuelled power plants for high-temperature applications including superheater and reheater tubes, headers, and steam piping (main steam and hot reheat).
Performance Characteristics
  • 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 due to superior performance
  • Higher resistance to thermal fatigue
  • Superior heat transfer and lower thermal expansion coefficients compared to austenitic steels
Available Specifications

Standard wall thickness designations: STD, 40, XH, 60, 80, 100, 120, 140, 160, XXH

Custom nominal and minimum wall thicknesses available upon request

Non-standard OD & ID dimensions can be furnished

Alternative Manufacturing Process
Best Pipeline offers pipes 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. Available grades include FP11, FP22, FP5, FP9, FP91, and FP92.
Material Grades and Standards Comparison
Carbon Steel and Alloy Steel Grades
EN/DIN Grade Steel Designation 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 Organizations
Standard Country Organization
ASTM USA American Society of Mechanical Engineers
AISI USA American Iron and Steel Institute
JIS Japan Japanese Industrial Standards
DIN Germany Deutsches Institut fur Normung e.V.
UNS USA Unified Numbering System
Product Gallery
X10CrMoVNb9-1 Alloy Steel Seamless Pipe for High-Temperature Service T91/P91 Grade 0
X10CrMoVNb9-1 Alloy Steel Seamless Pipe for High-Temperature Service T91/P91 Grade 1
X10CrMoVNb9-1 Alloy Steel Seamless Pipe for High-Temperature Service T91/P91 Grade 2