• High-Strength Steel Plate

B420CL、SAPH490、HR420 High-strength wheel steel


High-strength wheel steel is an advanced wheel material specially developed to meet the needs of rail vehicles under heavy load, high speed or extreme working conditions. While maintaining good wear resistance and fatigue performance, it significantly improves strength and toughness through composition optimization and process upgrades.

  1. Chemical composition comparison (mass fraction, %)

GradeC (≤)Si (≤)Mn (≤)P (≤)S (≤)Microalloying elements
B380CL0.10.31.20.0250.015Nb/Ti (可选)
SAPH4400.150.41.40.040.04-
B420CL0.120.351.50.020.01Nb/V (强化)
HR5500.180.51.80.0250.015Nb+Ti复合添加

2. Physical performance comparison

GradeY.S. (MPa)T.S. (MPa)Elongation (%)Hardness (HRB)Impact (J, -20℃)
B380CL280-380380-500≥28≤75≥27
SAPH440305-440440-590≥26≤80-
B420CL350-420420-550≥24≤85≥34
HR550450-550550-700≥18≤95≥40

3. Main applications

GradeApplicable partsProcessing TechnologyAdvantages
B380CLPassenger car steel rims and spokesStamping + weldingLow cost, good formability
SAPH440Japanese car wheel hubSpinningHigh Mn content improves work hardening rate
B420CLCommercial vehicle tubeless rimsRoller pressing + laser weldingHigh strength + fatigue resistance
HR550Lightweight wheels for new energy vehiclesHot forming + quenching15%-20% weight loss
B380CL+ZAnti-corrosion wheels in coastal areasGalvanized and stampedZinc 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.

容器 1@1x

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.

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  • Certificate (3)

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