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ASME SA213 TP347H Niobium Stabilized Superheater Tube with 50.8mm OD for USC Boiler
ASME SA213 TP347H Niobium Stabilized Superheater Tube with 50.8mm OD for USC Boiler
Specifications
Brand Name :
WNRLN
Model Number :
SA213-TP347H-50.8x8
Place of Origin :
Jiangsu, China
Certification :
ISO 9001:2015, ASME, PED 2014/68/EU
MOQ :
2 Tons
Price :
USD 6500-9000 / Ton
Payment Terms :
T/T, L/C at sight, D/P
Supply Ability :
3000 Tons per Month
Delivery Time :
20-35 working days after order confirmation
Packaging Details :
Plywood cases with moisture-proof lining, plastic end protectors, rust-preventive oil coating
Material Grade :
ASME SA213 TP347H (UNS S34709)
Outer Diameter :
50.8mm (2 inch)
Wall Thickness :
8mm
Length :
Up to 18000mm
Manufacturing Process :
Seamless Cold Drawn / Cold Rolled
Stabilization :
Niobium (Columbium) Stabilized
Max Service Temperature :
850 Degree Celsius
Heat Treatment :
Solution Annealed at 1100-1150 Degree Celsius
NDT Testing :
100% UT, Eddy Current, Hydrostatic, PMI
Description
ASME SA213 TP347H Austenitic Stainless Steel Superheater Tube OD 50.8mm WT 8mm for USC Boiler
Product Overview

ASME SA213 TP347H is a niobium-stabilized austenitic stainless steel designed for elevated temperature service in ultra-supercritical (USC) boiler superheaters and reheaters. The niobium stabilization prevents chromium carbide precipitation during welding and high-temperature operation, ensuring superior resistance to intergranular corrosion and sensitization.

Key Advantages
  • Niobium Stabilized: Eliminates sensitization risk during welding, no post-weld heat treatment required
  • High-Temperature Strength: Superior creep rupture strength compared to TP304H and TP321H at temperatures above 600°C
  • Oxidation Resistance: Excellent resistance to steam oxidation and flue gas corrosion in USC boiler environments
  • Long Service Life: Proven track record in supercritical and ultra-supercritical power plants worldwide
  • Full Traceability: EN 10204 3.1 / 3.2 certification with complete chemical and mechanical test reports
Technical Specifications
Parameter Specification
Material Standard ASME SA213 / ASTM A213 TP347H
UNS Designation S34709
Chemical Composition C: 0.04-0.10, Cr: 17.0-19.0, Ni: 9.0-13.0, Nb: 8xC-1.0%
Tensile Strength ≥515 MPa
Yield Strength ≥205 MPa
Elongation ≥35%
Applications

USC boiler superheater tubes, reheater tubes, header connections, high-temperature steam piping, and pressure parts in thermal and combined cycle power plants.

Inspection & Certification

100% ultrasonic and eddy current testing, PMI verification, hydrostatic pressure testing per ASME standards. EN 10204 Type 3.1 certificates provided as standard; Type 3.2 available with third-party inspection.

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ASME SA213 TP347H Niobium Stabilized Superheater Tube with 50.8mm OD for USC Boiler

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Product Detail
Brand Name :
WNRLN
Model Number :
SA213-TP347H-50.8x8
Place of Origin :
Jiangsu, China
Certification :
ISO 9001:2015, ASME, PED 2014/68/EU
MOQ :
2 Tons
Price :
USD 6500-9000 / Ton
Contact Supplier
ASME SA213 TP347H Niobium Stabilized Superheater Tube with 50.8mm OD for USC Boiler

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
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