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China Alloyed Aluminum-Silicon Coated Steel Suppliers - High-Performance Factory-Produced Coated Steel Solutions
| Characteristics | Use |
|---|---|
|
Features a standard 90Al-10Si coating processed via dedicated thermal diffusion treatment. A continuous Fe-Al-Si alloy interlayer develops between the steel substrate and outer aluminium-rich coating, delivering consistent chemical composition and low impurity levels. Boasts excellent resistance to high-temperature oxidation and thermal cycling. It withstands prolonged high-temperature service and short peak temperature exposure without coating cracking, blistering or delamination. Forms strong metallurgical adhesion with the steel substrate, providing outstanding bending and deep drawability. The coating remains intact without peeling during complex stamping processes. Is compatible with all mainstream welding methods, minimising welding spatter, defects and electrode abrasion. Direct welding is achievable without full pre-stripping of the coating, ensuring consistent mechanical strength of welded joints. Exhibits excellent infrared radiation performance after prolonged high-temperature oxidation heating equipment components. |
Automotive Industry Household Appliance & Kitchen Equipment Industrial Heating & HVAC Equipment New Energy & Thermal Power Equipment Construction & Fire Protection |
| Classification | KS D3544 | JIS G3314 | ASTM A463 | DIN EN 10346 | GB/T 18592 |
|---|---|---|---|---|---|
| Extra / Deep Drawing Quality | SA1E | SA1E | DDQ-EDDQ | DX54D-DX56D | DX54D-DX56D |
| Coating weight symbol | KSD3544 | JISG3314 | ASTMA463 | DINEN10346 | GB/T18592 |
|---|---|---|---|---|---|
| 120 | 一 | 120 | T1-40(120) | AS 120 | AS 120 |
| Classification | Technical Parameter Description |
|---|---|
| Coating Composition | Nominal coating ratio: 90 wt.% aluminium, 10 wt.% silicon; regular total coating weight of 120 g/m² on both sides; zinc impurity ≤0.05 wt.% |
| Metallurgical Structure | Three-layer composite structure; the intermediate continuous Fe-Al-Si alloy interlayer is strictly controlled within 8–12 μm without discontinuity |
| High Temperature Resistance | Stable long-term service at 600℃; withstand short peak temperature of 650℃ for maximum 2 hours; oxidation mass gain ≤0.35 mg/cm² after 1000-hour isothermal test at 600℃ |
| Formability & Adhesion | Critical scratch delamination load ≥18 N; no coating peeling after 0T tight T-bend test; Grade 0 in ISO 2409 cross-cut adhesion test |
| Infrared Optical Property | Total normal emissivity ranges from 0.78 to 0.86 after high-temperature oxidation |
