SA213 T11 Alloy Steel Boiler Membrane Wall Panel with φ42×5mm Cr-Mo Tube for 550°C Service Temperature
Product Details
| Tube Outer Diameter: | φ42mm | Tube Wall Thickness: | 5mm |
|---|---|---|---|
| Tube Material: | SA213 T11 (1.25Cr-0.5Mo) | Membrane Bar Material: | 15CrMo |
| Tube Pitch: | 65-85mm | Panel Width: | Customizable |
| Panel Length: | Up To 12000mm | Welding Method: | Submerged Arc Welding + Manual TIG |
| Maximum Service Temperature: | 550°C | Application: | Superheater Enclosure, Power Plant Boiler |
| Highlight |
SA213 T11 Alloy Steel Panel,φ42×5mm Cr-Mo Membrane Wall,Superheater Enclosure Tube Wall |
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Product Description
The SA213 T11 Alloy Steel Boiler Membrane Wall Panel is engineered with φ42×5mm chromium-molybdenum alloy tubes for high-temperature superheater enclosure walls. The 1.25Cr-0.5Mo composition provides exceptional oxidation and creep resistance at temperatures up to 550°C, making it ideal for the most demanding boiler zones.
Manufactured from SA213 T11 seamless alloy steel tubes containing 1.25% Chromium and 0.5% Molybdenum. This ferritic alloy offers superior high-temperature strength and resistance to graphitization and oxidation compared to carbon steel. Membrane bars are fabricated from 15CrMo alloy steel for material compatibility. Tube-to-fin welding uses submerged arc welding (SAW) for deep penetration, supplemented by manual TIG welding at panel edges and corner joints.
- High-Temperature Performance: 1.25Cr-0.5Mo alloy maintains mechanical properties up to 550°C, suitable for superheater and reheater enclosure zones
- Oxidation Resistance: Chromium content forms a protective oxide layer, reducing tube wall thinning in high-temperature flue gas environments
- Creep Strength: Molybdenum addition significantly improves creep rupture strength under sustained thermal loading
- Precision Welding: Combined SAW + TIG welding process ensures full-penetration bonds with minimal heat-affected zone degradation
- Post-Weld Heat Treatment: Stress-relieved after fabrication to eliminate residual welding stresses per ASME PWHT requirements
Material certificates to EN 10204 3.1 standard. 100% volumetric NDE including ultrasonic testing of all tube butt welds. Hydrostatic testing at 1.5x design pressure. Positive material identification (PMI) verification on all alloy components.
| Parameter | Specification |
|---|---|
| Tube OD | φ42mm |
| Tube Wall Thickness | 5mm |
| Tube Material | SA213 T11 (1.25Cr-0.5Mo) |
| Membrane Bar Material | 15CrMo |
| Tube Pitch | 65-85mm |
| Welding Method | SAW + Manual TIG |
| Max Service Temperature | 550°C |
Designed for superheater and reheater enclosure wall sections in subcritical and supercritical pulverized coal-fired power plants. Also suitable for fluidized bed boiler furnace zones requiring enhanced oxidation resistance.
Product Highlights
SA213 T11 1.25Cr-0.5Mo alloy steel membrane wall panel with φ42×5mm tubes for superheater enclosure walls. High-temperature oxidation resistant up to 550°C in power plant boilers.
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