SA213 T91 φ60×6mm Boiler Membrane Wall Panel for Supercritical Boiler Applications
Product Details
| Tube Outer Diameter: | φ60mm | Tube Wall Thickness: | 6mm |
|---|---|---|---|
| Tube Material: | SA213 T91 (9Cr-1Mo-V) | Membrane Bar Material: | SA387 Gr.91 |
| Tube Pitch: | 90-110mm | Panel Width: | Customizable |
| Panel Length: | Up To 15000mm | Welding Method: | Submerged Arc Welding + TIG |
| Maximum Service Temperature: | 650°C | Application: | Supercritical/Ultra-Supercritical Boiler |
| Highlight |
SA213 T91 Membrane Wall Panel,φ60×6mm 9Cr-1Mo-V Tube,Supercritical Furnace Enclosure |
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Product Description
The SA213 T91 High Pressure Boiler Membrane Wall Panel represents the pinnacle of boiler membrane wall technology. Manufactured with φ60×6mm modified 9Cr-1Mo-V (Grade 91) alloy steel tubes, this panel is engineered for ultra-supercritical (USC) boiler furnace enclosures operating at the highest temperature and pressure regimes in the power generation industry.
Constructed from SA213 T91 (ASME Grade 91) seamless tubes, a martensitic 9% Chromium steel enhanced with Molybdenum, Vanadium, Niobium, and controlled Nitrogen additions. This advanced alloy delivers the highest creep rupture strength in the 9Cr steel family, enabling thinner wall designs that improve heat transfer while reducing overall panel weight. Membrane bars are fabricated from SA387 Gr.91 plate material with identical chemistry for perfect metallurgical compatibility.
- Ultra-Supercritical Ready: T91 grade material is the industry standard for USC boilers with main steam temperatures up to 620°C and pressures exceeding 25MPa
- Martensitic Microstructure: Normalized and tempered microstructure provides an optimal balance of strength, toughness, and long-term creep resistance
- Thinner Wall Advantage: Superior creep strength allows reduced tube wall thickness, decreasing thermal resistance and improving boiler efficiency
- Oxidation & Corrosion: 9% Chromium content forms a dense, adherent Cr₂O₃ scale for excellent resistance to high-temperature oxidation and fireside corrosion
- Thermal Conductivity: Higher thermal conductivity compared to austenitic stainless steels improves heat absorption in furnace wall applications
Strict PWHT (Post-Weld Heat Treatment) protocol at 730-760°C per ASME B31.1 and ASME Section I requirements. Hardness testing on all welds to verify tempering (max 250 HB). Full PMI, UT, RT, and hydrostatic testing. All documentation compliant with EN 10204 3.2 certification upon request.
| Parameter | Specification |
|---|---|
| Tube OD | φ60mm |
| Tube Wall Thickness | 6mm |
| Tube Material | SA213 T91 (9Cr-1Mo-V-Nb) |
| Membrane Bar Material | SA387 Gr.91 |
| Tube Pitch | 90-110mm |
| Welding Method | SAW + TIG |
| Max Service Temperature | 650°C |
Specified for furnace water wall sections in ultra-supercritical (USC) coal-fired power plants (≥660MWe), advanced USC (A-USC) demonstration units, and high-temperature waste-to-energy boiler furnace enclosures.
Engage our technical team for Grade 91 welding procedure qualification records and project-specific panel engineering.
Product Highlights
SA213 T91 advanced 9Cr-1Mo-V alloy steel membrane wall panel with φ60×6mm tubes for supercritical boiler furnace enclosures. Exceptional creep strength up to 650°C with superior oxidation resistance.
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