MachineU > China Products > Minerals & Metallurgy > Carbon Steel > Steel Pipes > Seamless Steel Pipes
ASTM A335 P91 Alloy Steel Seamless Boiler Tube with 610mm OD and 30mm WT for High Pressure Power Plant Applications
ASTM A335 P91 Alloy Steel Seamless Boiler Tube with 610mm OD and 30mm WT for High Pressure Power Plant Applications
Specifications
Brand Name :
WNRLN
Model Number :
A335-P91-610x30
Place of Origin :
Zhejiang, China
Certification :
ISO 9001:2015, ASME, PED
MOQ :
5 Tons
Price :
USD 1800-2500 / Ton
Payment Terms :
T/T, L/C at sight
Supply Ability :
5000 Tons per Month
Delivery Time :
15-30 working days after order confirmation
Packaging Details :
Seaworthy wooden case with plastic end caps, bundled with steel straps, export-grade protection
Material Grade :
ASTM A335 P91 (9Cr-1Mo-V)
Outer Diameter :
610mm
Wall Thickness :
30mm
Length :
6000-12000mm or custom
Manufacturing Process :
Seamless Hot Rolled / Cold Drawn
Application :
Superheater, Reheater, Main Steam Pipe
Max Service Temperature :
650 Degree Celsius
Heat Treatment :
Normalized and Tempered
NDT Testing :
100% UT, Eddy Current, Hydrostatic Test
Description
ASTM A335 P91 Alloy Steel Seamless Boiler Tube
ASTM A335 P91 (9Cr-1Mo-V) is a creep strength enhanced ferritic (CSEF) alloy steel specifically developed for high-temperature service in ultra-supercritical (USC) power plants. With excellent oxidation resistance up to 650°C and superior creep rupture strength, these seamless boiler tubes are the industry standard for superheater, reheater, and main steam piping applications.
Key Features
  • Enhanced Creep Strength: Vanadium and niobium microalloying provides superior long-term creep resistance at elevated temperatures
  • Large Diameter Capability: Available up to 610mm OD with 30mm wall thickness for high-pressure steam circuits
  • Full NDT Coverage: 100% ultrasonic testing, eddy current inspection, and hydrostatic pressure testing per ASME SA335 specification
  • Normalized and Tempered: Precise heat treatment ensures uniform martensitic microstructure and optimal mechanical properties
  • Traceability: Full mill test certificates with heat number traceability from steelmaking to final delivery
Material Specifications
Property Value
Grade ASTM A335 P91 / ASME SA335 P91
Chemical Composition C: 0.08-0.12, Mn: 0.30-0.60, Cr: 8.00-9.50, Mo: 0.85-1.05, V: 0.18-0.25
Tensile Strength ≥585 MPa
Yield Strength ≥415 MPa
Elongation ≥20%
Hardness ≤250 HB
Applications
  • Ultra-supercritical boiler superheaters
  • Reheaters
  • Main steam piping
  • High-temperature headers
  • Pressure parts in thermal power plants operating at steam temperatures up to 620°C
Quality Assurance
All tubes undergo rigorous inspection including PMI (Positive Material Identification), dimensional verification, 100% UT/ET, and hydrostatic testing. Third-party inspection by SGS, BV, TUV, or Lloyd's Register available upon request.
Send your message to this supplier
Send Now

ASTM A335 P91 Alloy Steel Seamless Boiler Tube with 610mm OD and 30mm WT for High Pressure Power Plant Applications

Ask Latest Price
Product Detail
Brand Name :
WNRLN
Model Number :
A335-P91-610x30
Place of Origin :
Zhejiang, China
Certification :
ISO 9001:2015, ASME, PED
MOQ :
5 Tons
Price :
USD 1800-2500 / Ton
Contact Supplier
ASTM A335 P91 Alloy Steel Seamless Boiler Tube with 610mm OD and 30mm WT for High Pressure Power Plant Applications

ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD

Verified Supplier
7 Years
jiangsu
Since 1985
Business Type :
Manufacturer, Exporter
Main Products :
Boiler Steel Tube, Seamless Boiler Tubes, Boiler Fin Tube
Total Annual :
100000000-110000000
Employee Number :
600~700
Certification Level :
Verified Supplier
Discover similar products
View More

Find Similar Products By Category:

Supplier Homepage Products Boiler Steel Tube
MachineU China Products Minerals & Metallurgy Carbon Steel Steel Pipes Seamless Steel Pipes
Contact Supplier
Submit Requirement