ASTM A335 Alloy Steel Seamless Pipe for High-temperature Service with Corrosion Resistance and OD 6-630mm

Price Negotiable
Price: US $680-1,830 / Ton
MOQ: 1 Ton
Delivery Time: Negotiable
Product Description
ASTM A335 P5 P9 P11 P22 P91 Alloy Steel Pipe
Available in sizes from 1/2" to 80" for high-temperature industrial applications
Product Overview
X10CrMoVNb9-1 Alloy Steel Seamless Pipes for High-temperature Service T91/P91 (X10CrMoVNb9-1) are premium ferritic-martensitic steel pipes micro-alloyed with vanadium and niobium, manufactured according to ASTM A335, A213, and EN 10216-2 standards.
Primary Applications
These alloy steel pipes are specifically designed for fossil-fueled power plants, serving critical roles in:
  • Superheater and reheater tubes
  • Headers and steam piping systems
  • Main steam and hot reheat lines
Performance Advantages
  • Excellent elevated-temperature strength and creep resistance up to 580°C - 600°C
  • Superior corrosion and oxidation resistance with 9% chromium content
  • Enhanced thermal fatigue resistance through reduced component weight
  • Higher heat transfer coefficients compared to austenitic steels
  • Lower thermal expansion coefficients for improved stability
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 to meet specific project requirements.
Alternative Manufacturing Options
When size, wall thickness, quantity, or delivery requirements cannot be met by A/SA335 specifications, we offer pipes from turned and bored forgings in accordance with A/SA369 specifications. Available grades include FP11, FP22, FP5, FP9, FP91, and FP92.
Material Grades and International Equivalents
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 Reference
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
Alloy steel pipe manufacturing and quality inspection
High-temperature alloy steel pipe applications in power plants
ASTM A335 alloy steel pipe inventory and specifications

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

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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