Tấm mài mòn cacbua

Tấm mài mòn cacbua: High-Chromium vs Low-Chromium Overlay Composition Comparison

Carbide wear plate is a hardfaced composite steel plate produced by depositing a carbide-rich alloy layer onto a carbon steel or low-alloy steel base. The wear resistance of the overlay layer is mainly determined by its hàm lượng crom, which directly affects hardness, sự hình thành cacbua, sự dẻo dai, và tuổi thọ phục vụ.

In practical engineering applications, carbide wear plates are generally divided into lớp phủ crom cao Và lớp phủ crom thấp systems.

1. Basic Composition Difference

Kiểu	Main Composition
High-chromium carbide wear plate	High Cr (20–35%) + C + Fe matrix + alloy additives
Low-chromium carbide wear plate	Lower Cr (5–15%) + C + Fe matrix + minor alloy elements

The key difference is the amount and distribution of chromium carbide phases formed during welding.

2. Carbide Formation and Microstructure

Kiểu	Carbide Structure	Main Wear Phase
High-chromium	Dense Cr7C3 / Cr23C6 carbides	Large hard carbide network
Low-chromium	Mixed carbides with lower density	Less carbide reinforcement

High-chromium plates form a much denser and harder carbide network, which significantly improves abrasion resistance.

3. So sánh độ cứng và khả năng chống mài mòn

Tài sản	Crôm cao	Crôm thấp
Độ cứng bề mặt	HRC 58–65	HRC 45–55
Chống mài mòn	Xuất sắc	Vừa phải
Chống va đập	Medium to low	Higher toughness
Service life in abrasion	dài hơn	ngắn hơn

4. Performance Difference in Applications

Working Condition	Recommended Type
Mài mòn trượt nghiêm trọng (xi măng, khai thác mỏ, than đá)	High-chromium carbide wear plate
Tác động hỗn hợp + mài mòn	Low-chromium carbide wear plate
High impact environments	Low-chromium or complex alloy systems

5. Cost Difference

• High-chromium plates: Higher material cost due to increased alloy content
• Low-chromium plates: More economical, suitable for general wear conditions

Higher chromium content generally increases both hardness and cost.

6. Key Selection Principle

• Choose high-chromium: When abrasion is the dominant wear mechanism
• Choose low-chromium: When impact and toughness are also required

Proper selection improves service life and reduces total maintenance cost.

7. Teda Ganghua Carbide Wear Plate Supply Capability

Là nhà cung cấp thép chịu mài mòn chuyên nghiệp, Teda Ganghua provides both high-chromium and low-chromium carbide wear plate solutions, helping customers select the most suitable material based on actual working conditions in mining, xi măng, thép, và các ngành công nghiệp điện.

Chúng tôi hỗ trợ cắt tùy chỉnh, chế tạo, and engineered wear system design.

Khám phá các sản phẩm thép chịu mài mòn của chúng tôi tại đây:
Tấm lớp phủ crom cacbua

Phần kết luận

High-chromium carbide wear plates provide superior hardness and abrasion resistance, while low-chromium plates offer better toughness and cost efficiency. The best choice depends on whether the application is dominated by abrasion or impact wear.