High Temperature 480℃ Hot-Dipped Aluminized Steel Coil for Oven/Air Fryer (DC51D+AS to DC57D+AS)

• After-sales Service: According to The Contract
• Warranty: One Years
• Standard: ASTM, JIS, GB, AISI, DIN, BS
• Model NO.: DC51D+AS to DC57D+AS
• Certification: ISO, RoHS, CE
• Surface Treatment: Aluminized
• Technique: Cold Rolled
• Application: Home Appliance Automotive Parts
• Edge: Slit Edge/Mill
• Stock: Stock
• Length: Customized
• Thickness: Customized
• Sample: Available
• Production Time: Within 7 Days
• MOQ: One for Normal Size
• Transport Package: PE Film+Vci Paper Wrapping, Plastic End Caps, Stee
• Specification: Customized
• Origin: China
• HS Code: 7210690000

Product Description

Hot-dip Aluminized Steel

Hot-dip aluminized steel is a high-performance anti-corrosion steel product manufactured by immersing pretreated carbon steel or low-alloy steel into a molten aluminum or aluminum-silicon alloy bath (typically 95% Al + 5% Si). The process forms a two-layer metallurgical coating: a dense Fe-Al intermetallic compound layer (bonded tightly with the steel substrate) and a top aluminum alloy layer.
This product integrates excellent high-temperature corrosion resistance, atmospheric corrosion resistance, and mechanical processability, making it an ideal alternative to traditional hot-dip galvanized steel in high-temperature application scenarios. It is widely used in high-temperature equipment, automotive parts, and outdoor structural components, with a service life 2–3 times longer than that of ordinary carbon steel in harsh environments.

Specification

Grade	Yield Strength /MPa	Tensile Strength/MPa	Elongation/%
DX51D+AS	220 - 350	270 - 500	≥26
DX52D+AS	140 - 280	270 - 420	≥30
DX53D+AS	140 - 185	270 - 330	≥36
DX51D+Z	220 - 350	270 - 500	≥26
DX52D+Z	140 - 280	270 - 420	≥30
DX53D+Z	140 - 185	270 - 330	≥36
For information on other grade numbers, please contact us.

Product Advantage

Superior High-temperature Corrosion & Oxidation Resistance

Excellent Atmospheric Corrosion Resistance

Strong Coating-substrate Adhesion & Good Processability

Forms a dense, stable aluminum oxide (Al2O3) protective film on the surface at high temperatures, which can block oxygen and corrosive media from penetrating the steel substrate.
Continuous service temperature ranges from 450–650℃, and short-term maximum temperature can reach 750℃, far exceeding hot-dip galvanized steel (≤250℃).
Ideal for high-temperature components like industrial furnace linings, exhaust pipes, and flue systems, with no peeling or rusting under long-term high-temperature conditions.

In harsh environments such as humid climates, coastal salt spray, and industrial waste gas, the corrosion resistance is 20-50 times higher than ordinary carbon steel, and comparable to or even better than hot-dip galvanized steel.
Passes the neutral salt spray test for ≥2000 hours (with coating weight: 100 g/m²) without red rust, suitable for outdoor structures like power transmission towers, highway guardrails, and street lamp poles.

The metallurgical bonding between the Fe-Al intermetallic compound layer and the steel substrate ensures high adhesion. It can withstand bending , stamping, deep drawing, and other cold working processes without coating cracking or peeling.
Supports common welding methods (arc welding, spot welding, gas welding). Post-welding anti-corrosion treatment is simple (e.g., touch-up with aluminized paint), which does not affect the overall performance of the product.
The surface of the aluminum coating can be directly painted without special pretreatment, and the paint adhesion reaches Grade 1 (cross-cut test standard), meeting the needs of color customization of finished products.

Cost-effective Alternative to High-end Steels

Environmentally Friendly & Compliant with International Standards

Diversified Product Forms & Customization Capabilities

Compared with stainless steel, the procurement cost is reduced by 40%–60%, while it has similar high-temperature corrosion resistance in many scenarios, significantly lowering the customer's production cost.

Longer service life (15–20 years for outdoor applications) reduces the frequency of maintenance and replacement, and the overall life-cycle cost is 30% lower than that of hot-dip galvanized steel.

The coating does not contain heavy metals such as lead and chromium, fully complying with RoHS and REACH environmental standards, and meets the import requirements of European, American, and other markets.

The production process is pollution-free, with no waste water or waste gas discharge, in line with the global trend of green manufacturing.

Available in various forms: steel coil, steel sheet, steel pipe, steel wire, and custom-shaped components, to meet the diversified needs of different industries.

Can customize base steel grades (Q195/Q235/SPCC/SAE 1006, etc.), coating thickness (80-300 μm,, double-sided), and coating types (pure aluminum/Al-Si alloy) according to customer requirements.

Product Details

Application

Primary Application Areas

High-temperature equipment: Industrial furnace liners, flue ducts, chimneys, hot blast stove pipes, boiler components

Outdoor structures: Highway guardrails, transmission towers, streetlight poles, container frames

Automotive industry: Exhaust pipes, mufflers, engine heat shields 

Agricultural machinery: Drying equipment, agricultural implement housings

Customer Application Status

Packaging & Shipping

FAQ

FAQs for Hot-dip Aluminized Silicon Steel

Q1: What is the continuous service temperature range and short-term maximum temperature of hot-dip aluminized silicon steel? 
A1: The continuous service temperature can reach up to 450℃ (maintaining high thermal reflectivity and stable performance), and the short-term maximum temperature can reach 750℃. It shows no discoloration or powdering even after 250 hours of exposure at 300–480℃.
 
Q2: How many times better is its corrosion resistance than ordinary carbon steel in harsh environments like humid climates, coastal salt spray, and industrial waste gas? 
A2: Its comprehensive corrosion resistance is 20–50 times that of ordinary carbon steel. The dense Al₂O₃ oxide film on the surface isolates the steel substrate from corrosive media. For example, the AS100 grade can withstand 2100 hours of neutral salt spray testing, while ordinary carbon steel only lasts 40–100 hours under the same conditions.
 
Q3: What is the cost reduction compared to stainless steel (e.g., 304 stainless steel)? 
A3: The procurement cost is 40%–60% lower than that of 304 stainless steel. It uses low-carbon steel/low-alloy steel as the base material with an Al-Si coating (density 3.0g/cm³, only 1/2 of zinc), and the production process is more cost-effective than stainless steel smelting.

Q4: What are the main surface treatment options and their core advantages? 
A4: Two main options are available: Cr³⁺ passivation (environmental-friendly, Cr³⁺ content 20–60mg/m², excellent corrosion resistance); Chrome-free passivation (meets strict environmental standards,surface resistance <1mΩ for good conductivity). Both support oil coating for enhanced protection.
 
Q5: Can it be processed by bending, stamping, or welding? What should be noted? 
A5: Yes, it has excellent processability. It can withstand 180° bending (bend radius = 2×steel thickness) and stamping without coating peeling. It supports arc welding, spot welding, etc.—simply touch up the welding area with aluminized paint for post-weld corrosion protection.
 
Q6: What are the typical applications in automotive and home appliance industries? 
A6: - Automotive: Engine heat shields (DC54D+AS), exhaust systems (DC53D+AS), protective covers, rainwater collection boxes (DC56D+AS);
Home appliances: Oven molds, air fryers, woks, and stew pots (leveraging its high-temperature resistance and corrosion resistance).

Our Services

Professional Team Service

1.24-hour online
2.Support customization
3.Multiple payment styles to choose from
4.Factory inspection (material, specifications, quantity, pressure)
5.Long warranty period
6.Suitable packaging for transportation

Company Profile

                       15+ years of manufacturing experience

     Shanghai Baori Steel Industries Co., Ltd

                       Professional, efficient and good service
                          Do things sincerely, connect the world

Our main business field is the manufacturing, Processing and distributing of silicon steel product. Our company main product including Hot dip aluminized steel coil/plate,stainless steel,galvanized steel,channel steel,rebar,pipe,etc...
We have more than 15+ years of manufacturing experience and 20 years of domestic market. We have customized production capacity. We have more than 20 employees and the factory covers an area of more than 8,000 square meters. Year capacity up to 100, 000 Tons.
We are also agent of Baosteel, Wisco, Shougang Group, Shagang, An steel. Tisco etc.  We have best supply chain and competitive price, will match different quality and price level requirement.   Now our clients throughout the world and areas in MID-east, Africa, South-America, Southeast Asia, Latin-America, Europe etc...