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Weathering-Resistant Wheel Steel

Weathering-Resistant Wheel Steel is a special wheel material that forms a stable protective layer spontaneously in harsh environments (high humidity, salt spray, acid rain, etc.) through alloy design + surface passivation, significantly improving corrosion resistance while maintaining mechanical properties comparable to traditional wheel steel.

1. Chemical composition comparison (mass fraction, %)

Grade	C (≤)	Si (≤)	Mn (≤)	P (≤)	S (≤)	Microalloying elements
B380CL	0.1	0.3	1.2	0.025	0.015	Nb/Ti (可选)
SAPH440	0.15	0.4	1.4	0.04	0.04	-
B420CL	0.12	0.35	1.5	0.02	0.01	Nb/V (强化)
HR550	0.18	0.5	1.8	0.025	0.015	Nb+Ti复合添加

2. Physical performance comparison

Grade	Y.S. (MPa)	T.S. (MPa)	Elongation (%)	Hardness (HRB)	Impact (J, -20℃)
B380CL	280-380	380-500	≥28	≤75	≥27
SAPH440	305-440	440-590	≥26	≤80	-
B420CL	350-420	420-550	≥24	≤85	≥34
HR550	450-550	550-700	≥18	≤95	≥40

3. Main applications

Grade	Applicable parts	Processing Technology	Advantages
B380CL	Passenger car steel rims and spokes	Stamping + welding	Low cost, good formability
SAPH440	Japanese car wheel hub	Spinning	High Mn content improves work hardening rate
B420CL	Commercial vehicle tubeless rims	Roller pressing + laser welding	High strength + fatigue resistance
HR550	Lightweight wheels for new energy vehicles	Hot forming + quenching	15%-20% weight loss
B380CL+Z	Anti-corrosion wheels in coastal areas	Galvanized and stamped	Zinc layer is resistant to salt spray corrosion

Product Details

We adopt high standard production processes, select high-quality steel raw materials, and provide diverse product specifications and models. All steel products have passed strict quality testing, with smooth and even surfaces, precise dimensions, excellent compressive strength, corrosion resistance, and processability. Support customized thickness, length, and special process requirements to meet different usage standards in different scenarios. Clear display of high-definition detailed images and technical parameter tables of the physical object, ensuring transparent and visible quality.

Packaging and Shipping

Adopting a professional industrial packaging solution that is moisture-proof and scratch resistant, each batch of steel is tied and fixed with customized wooden frames/steel strips, combined with anti rust coatings and cushioning pads to ensure zero damage during transportation. Clear product model, batch number, and storage identification on the outer packaging, supporting customized enterprise logos and information labels. Environmentally friendly and recyclable packaging materials practice green concepts, reducing transportation and disassembly costs.

Partners

The company has sufficient inventory, supports customization, and has complete varieties and specifications.

Now we can provide 1000,000 tons for the clients all over the world every year.

Certificate Qualification

Shandong Zhongxuan Steel Group Co.,Ltd. Is a modern integrated production enterprise which incorporates the processing & manufacturing of Cold rolled Steel, Hot rolled steel, Galvanized Steel, Galvalume Steel, and Prepainted Steel Products, sales and logistics.