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China factory - ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD

ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD

  • China ,Jiangsu
  • Verified Supplier
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  3. ASTM A335 P91 Alloy Steel Seamless Boiler Tube with 610mm OD and 30mm WT for
China ASTM A335 P91 Alloy Steel Seamless Boiler Tube with 610mm OD and 30mm WT for
China ASTM A335 P91 Alloy Steel Seamless Boiler Tube with 610mm OD and 30mm WT for

  1. China ASTM A335 P91 Alloy Steel Seamless Boiler Tube with 610mm OD and 30mm WT for

ASTM A335 P91 Alloy Steel Seamless Boiler Tube with 610mm OD and 30mm WT for

  1. MOQ： 5 Tons
  2. Price： USD 1800-2500 / Ton
  3. Get Latest Price
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
Brand Name WNRLN
Model Number A335-P91-610x30
Place of Origin Zhejiang, China
Certification ISO 9001:2015, ASME, PED

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  1. Product Details
  2. Company Details

Product Specification

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 Brand Name WNRLN
Model Number A335-P91-610x30 Place of Origin Zhejiang, China
Certification ISO 9001:2015, ASME, PED
High Light P91 Alloy Steel Grade ，610mm Superheater Tube ，High Pressure 30mm WT
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.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer,Exporter

  • Year Established:

    1985

  • Total Annual:

    100000000-110000000

  • Employee Number:

    600~700

  • Ecer Certification：

    Verified Supplier

Zhangjiagang Hua Dong Energy Technology Co., Ltd. is a high-tech enterprise specialized in producing all kinds of stainless, carbon and alloy steel tubes and pipes, steel plates which are widely used in the field of boiler&heat exchanger, energy, petrochemical, mining, food, paper, gas and fluid... Zhangjiagang Hua Dong Energy Technology Co., Ltd. is a high-tech enterprise specialized in producing all kinds of stainless, carbon and alloy steel tubes and pipes, steel plates which are widely used in the field of boiler&heat exchanger, energy, petrochemical, mining, food, paper, gas and fluid...

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  • ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD
  • Rm. 1202, Buildiing A, Wanda Plaza, Zhangjiagang, Jiangsu, China
  • https://www.boilersteeltube.com/

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