| Customization: | Available |
|---|---|
| Standard: | ASTM, JIS, GB, AISI, DIN, BS |
| Certification: | ISO, RoHS, IBR |
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DX51D+AS240 Al-Si Coated Steel 800°C Thermal Reflective Layer for Industrial Furnace Insulation
High-Temperature Insulation Solution for Furnace Energy Efficiency and Corrosion Resistance
MESCO STEEL's AS240 Al-Si Coated Steel with integrated 800°C thermal reflective layer provides superior protection against extreme heat and corrosion in industrial furnaces. This dual-layer system combines oxidation resistance with advanced heat reflection, reducing energy costs and extending equipment service life.
Key Performance Advantages
Corrosion Protection
Acid/Flue Gas Resistance: Withstands sulfuric compounds, chlorides, and reducing atmospheres.
Thermal Efficiency
Over 85% Radiant Heat Reflection at 800°C (peak efficiency range: 600-850°C).
5-15% Energy Reduction via minimized radiative heat loss.
Mechanical Reliability
Spallation Resistance: Superior coating adhesion under thermal cycling.
Weldability: Compatible with standard arc welding (coating protection required near weld zones).
Material Test Certificate
Technical Specifications
| Parameter | Specification |
|---|---|
| Base Material | AS240 |
| Reflective Layer Efficiency | >85% at 800°C (ASTM E423) |
| Thickness Options | 0.8mm / 1.0mm / 1.5mm / 2.0mm |
| Max Continuous Service | 850°C (base material) |
| Thermal Cycling Stability | 1,000+ cycles (800°C to room temp) |
| Standards | ASTM A463, EN 10292, JIS G3321 |
Industrial Furnace Performance Data
| Exposure Condition (1,000hrs) | Oxidation Rate (mg/cm2) | Coating Integrity |
|---|---|---|
| Air @ 800°C | Less than 1.0 | No spalling |
| 5% H2S + N2 @ 750°C | Less than 1.8 | Minor scaling |
| Cyclic (800°C to Water-cooled) | Less than 2.5 | Edge cracking under 3% |
Application-Specific Benefits
Heat Treatment Furnaces
Reduces fuel consumption by 8-12% | Prevents scaling on radiant tubes
Forging & Reheating Furnaces
Improves temperature uniformity (+/-10°C) | Withstands slag/scale abrasion
Ceramic Kilns
Resists alkali vapor corrosion | Maintains over 80% reflectivity after 3 years
Petrochemical Heaters
Complies with NACE MR0175 (sour service) | Lowers surface temperature by 30-50°C
Competitive Comparison
| Property | AS240 + Reflective Layer | 310S Stainless | Ceramic Fiber Module |
|---|---|---|---|
| Max Service Temp | 850°C | 1,100°C | 1,430°C |
| Thermal Conductivity | 0.5 W/m·K | 16 W/m·K | 0.15 W/m·K |
| Corrosion Resistance | Excellent | Good | Poor (erosion) |
| Installation Cost | $25-35/ft2 | $60-80/ft2 | $40-50/ft2 |
| Lifecycle Cost (5-year) | $0.30/ft2/year | $1.50/ft2/year | $0.80/ft2/year |
Fabrication Guidelines
Cutting: Shearing or laser cutting (edge sealing required)
Welding: GTAW with Al-Si filler (ER4043); remove local coating + post-weld spray
Forming: Minimum bend radius = 2x thickness
Installation: Continuous welding recommended; seal overlapping seams
Quality Assurance
Certification: EN 10204 3.2 with traceable heat analysis
Dimensional Tolerance:
Thickness: +/-0.05mm | Flatness: Less than 0.5mm/m
Testing:
Coating weight: 30-300 g/m2 Al-Si | Reflectivity (ASTM E423) | Salt spray resistance >1,000 hrs (ASTM B117)
Specify AS240 Al-Si Coated Steel for:
Up to 15% Energy Cost Reduction
3-5x Longer Service Life vs. Uncoated Steel
Maintenance-Free Reflective Surface
Seamless Integration with Furnace Structures
Request Furnace Energy Audit Report + Technical Datasheet
Engineering Support Services
Custom reflectivity optimization for temperature zones
Corrosion modeling in complex atmospheres
Welding Procedure Specifications (AWS)
Installation supervision & inspection
Certifications
ISO 9001:2015 | NACE MR0175 (Sour Service) | ASME SB209 Compliant
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