P265GH P91 Alloy Steel Seamless Pipes Balck Seamless Carbon Steel Pipe

Place of Origin China/Japan
Brand Name BEST
Certification API, CE, PED, ISO
Model Number 1/2''-48''
Minimum Order Quantity 1 ton
Price USD+900-2500 /Ton
Packaging Details Pipes May be furnished bard or coated and with capped ends
Delivery Time 5-8 working days
Payment Terms L/C /TT
Supply Ability 10000ton/Month

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Product Details
Steel Grade EN10216-2 P235GH , P265GH , 16Mo3 Standard ASTM A 179 / ASTM A106 / ASTM A192 . ASTM A209
Grade P91/T91/X10CrMoVNb9-1/ 13CrMo9-10, 15NiCuMoNB5-6-4 Certificate EN10204 -3.1 /3.2
Packing Pipes May Be Furnished Bard Or Coated And With Capped Ends Specific Qualification TUV:AD WO-TRD100 / PED97/23/EC /IBR
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Product Description


Name : X10CrMoVNb9-1 Alloy Steel Seamless pipes for High-temperature Service T91/P91 (X10CrMoVNb9-1)​



Definition :

Grade T/P91 is a ferritic-martensitic (9 % chromium, 1 % molybdenum) steel micro-alloyed with vanadium and niobium, and has a controlled nitrogen content according to ASTM A 335, A 213 or to EN 10216-2 standard under the designation X10CrMoVNb9-1.


Application :

On fossil-fuelled power plants, this grade is mainly used for high-temperature applications in superheater and reheater tubes, headers and steam piping (main steam and hot reheat).


Challenges :

Grade T/P91 exhibits excellent elevated-temperature strength and creep behavior up to 580 °C - 600 °C. Its 9 % chromium content offers better corrosion and oxidation resistance than grade 22. In addition, the reduced weight of boiler and piping components resulting from the steel's superior performance compared with other standard steels allows higher resistance to thermal fatigue. Compared with austenitic steels, grade T/P91 has higher heat transfer and lower thermal expansion coefficients.


Materials in industry standard designations: 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 above for A/SA335.


Material Grades and Comparison of Grade Equivalents


Carbon Steel (CS) and Alloy Steel (AS)
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



ASTM USA Ameirican Society of Mechanical Engineers
AISI USA Acronym of American Iron and Steel Institute
JIS JP Japanese Industrial Standards
DIN GER Deutsches Institut für Normung e.V.
UNS USA Unified Numbering System




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P265GH P91 Alloy Steel Seamless Pipes Balck Seamless Carbon Steel Pipe 0P265GH P91 Alloy Steel Seamless Pipes Balck Seamless Carbon Steel Pipe 1