Core Knowledge of the Brake Pad Industry
Shandong Huaruifeng Machinery Co., Ltd. deeply engages in the brake component field, focusing on the R&D, production and sales of brake pads, and providing safe, reliable and adaptive braking solutions for various vehicle models worldwide. As a core safety component of the automotive braking system, brake pads directly determine the driving braking efficiency, safety and riding experience, and their technological R&D, material selection and scenario adaptation are the core keys to the industry's development. This article analyzes the core knowledge of the brake pad industry from the dimensions of core attributes, material classification, vehicle adaptation, industry standards and development trends.
I. Core Performance Metrics of Brake Pads: Friction Coefficient and Thermal Stability
The friction coefficient (μ) is the core indicator for measuring the braking efficiency of brake pads, referring to the ratio of the friction force between the brake pad and the brake disc to the caliper pressure, which directly determines the braking sensitivity and braking force. It is not the higher the better, and needs to be precisely matched with the vehicle model. China's national standard GB5763-2008 clearly stipulates that the friction coefficient of brake pads should be stably maintained at 0.25-0.70 in the core operating temperature range of 100℃-350℃; in the international general classification, Class F is the mainstream for household vehicles, Class G is suitable for performance vehicles, and Classes FF/FG are common specifications for civil vehicles.
Thermal stability is another core performance of brake pads. Inferior products are prone to thermal fade at high temperatures, with the friction coefficient dropping sharply or even losing braking capacity. High-quality brake pads can maintain a stable coefficient at 200℃-650℃, and brake pads for commercial vehicles/heavy-duty vehicles need to have a higher high-temperature retention rate. For example, the friction coefficient retention rate at 300℃ needs to reach more than 90% to cope with continuous braking needs of long-distance and heavy-duty driving.
II. Mainstream Material Classification: Precise Matching of Characteristics and Scenarios
The materials of brake pads have gone through the iteration of asbestos (banned worldwide), semi-metallic, low-metallic, NAO organic, ceramic and other types. At present, various materials form a clear division of labor by scenario, with no distinction between superior and inferior, only differences in adaptability. The core material characteristics and applicable scenarios are as follows:
1. Semi-metallic material: With a metal content of 30%-65%, it features high thermal conductivity, outstanding high temperature resistance and affordable cost, with a single set price of 300-500 RMB. It is the first choice for commercial trucks and heavy-duty vehicles, but has a relatively high incidence of low-temperature abnormal noise and slightly greater wear on brake discs.
2. Low-metallic material: With a metal content of 15%-30%, the friction coefficient is stably maintained at 0.38-0.42, balancing heat dissipation and braking comfort. It is suitable for heavy-duty household vehicles such as SUVs and MPVs, and is a balanced choice for household and heavy-duty use.
3. NAO asbestos-free organic material: With organic fibers and resins as the core, it has a running-in period of only 200km, a braking noise lower than 65 decibels, and minimal wear on brake discs. It is suitable for urban commuter cars and Japanese household vehicles, and is the first choice for high-frequency braking scenarios in cities.
4. Ceramic material: The current mainstream in the high-end market of household vehicles, with an operating temperature up to 800℃, excellent resistance to thermal fade, low braking noise, less dust, long service life and extremely low wear on brake discs. It is suitable for mid-to-high-end cars and luxury passenger cars. The only disadvantage is the high manufacturing cost, with a price 2-3 times that of ordinary materials.
5. Carbon-ceramic composite material: A top high-performance material with a high temperature resistance limit of 1200℃ and a density of only 40% of steel, but the cost is extremely high (more than 10,000 RMB per set). It is only suitable for top supercars and professional track vehicles, with very few applications in the civil market.
III. Brake Pads for Passenger and Commercial Vehicles: Core Differences and Adaptation Logic
Due to the differences in load, braking method and usage scenarios between passenger and commercial vehicles, brake pads have essential differences in design, material and performance. The core differences are as follows, which are also the key basis for the production and selection of brake pads:
1. Material and performance: Brake pads for commercial vehicles are mainly made of semi-metallic high-wear-resistant formula, focusing on high temperature resistance, wear resistance and high load bearing capacity to cope with continuous braking of heavy-duty and long-distance driving; brake pads for passenger vehicles focus on comfort and adaptability, with low-metallic, NAO and ceramic materials as the core, balancing silence, low dust and braking smoothness.
2. Braking system matching: Most commercial vehicles adopt pneumatic braking systems, and brake pads need to match high pressure output, with far higher braking force requirements than passenger vehicles; passenger vehicles are mainly equipped with hydraulic braking systems, and brake pads focus on the linear output of friction coefficient to achieve the precise pedal feel of "what you step is what you get".
3. Service life and replacement cycle: Brake pads for commercial vehicles wear out quickly due to heavy loads, with a replacement cycle of about 10,000 km; brake pads for passenger vehicles wear out slowly, with a replacement cycle of 30,000-50,000 km in urban commuting scenarios and up to 60,000-80,000 km in high-speed road conditions.
4. Structural design: Truck brake linings dedicated to commercial vehicles are designed with thick friction linings to bear loads of more than 10 tons; brake pads for passenger vehicles are smaller and more lightweight, adapting to the compact layout of brake calipers.
IV. Core Industry Standards: Bottom Line of Quality and Compliance
Formal brake pad products must pass dual national and international certifications, which are the core threshold for products to enter the market and the foundation for ensuring driving safety. The core certifications and standards are as follows:
1. Domestic standards: Must comply with core national standards such as GB5763-2008 Brake Linings for Automobiles and GB/T22309-2025 Shear Strength Test. The packaging must clearly mark the friction coefficient, applicable vehicle models, production standards and other information.
2. International certifications: The EU E-Mark certification is the core qualification for brake pads exported to Europe, and the US DOT certification is the access standard for the North American market. Products without international certifications cannot enter the mainstream overseas markets.
3. Industry quality management: Formal manufacturing enterprises must establish the ISO/TS16949 quality management system to realize the whole-process quality control of production and ensure product consistency. For example, the flatness of the friction surface must be ≤0.05mm to avoid problems such as braking jitter and abnormal noise.
V. Industry Development Trends: Greenization, Intellectualization and High-endization
The domestic brake pad market scale has reached 28 billion RMB in 2025 with an annual growth rate of 5.2%. With the transformation of the automotive industry towards new energy and intellectualization, the brake pad industry is also facing technological upgrading and structural adjustment. The core development trends are as follows:
1. Environmental upgrading: Asbestos-free, low-copper/copper-free formulas have become the mainstream, and the market share of ceramic brake pads is rising rapidly, which is expected to exceed 40% by 2030, becoming the fastest-growing segment of the industry. "Three low" products with low dust, low wear and low noise have become the market rigid demand.
2. New energy vehicle adaptation: The increase in braking load driven by the range improvement of new energy vehicles, coupled with the regenerative braking system, puts forward higher requirements for the thermal stability and wear resistance of brake pads. Brake pads dedicated to new energy vehicles have become the R&D focus of enterprises, and the scale of supporting brake pads for electric passenger vehicles has exceeded 4.5 billion RMB in 2025.
3. Intelligent integration: Drive-by-wire braking and intelligent driving technologies have promoted the development of brake pads towards integration and modularization. Intelligent brake pads with wear sensors and active early warning functions have become a trend, with the market scale reaching 5 billion RMB in 2025 and an annual growth rate of over 25%.
4. Rise of local brands: Domestic brake pad enterprises have achieved overtaking on curves through technological breakthroughs, and some brands have passed the EU E-Mark certification, with products exported to more than 70 countries. The overseas market has become an important growth pole for local enterprises, and the export volume of domestic brake pads has exceeded 8 billion RMB in 2023.
5. High-endization of commercial vehicles: The development of long-distance logistics and heavy-duty transportation has driven the upgrading of commercial vehicle brake pads towards long service life and high wear resistance. The demand for truck brake linings with thick friction linings and high-carbon alloy steel plate materials is growing continuously, and products adapted to overseas commercial vehicle markets such as Central Asia and Southeast Asia have become export hotspots.
VI. Core Principles of Brake Pad Selection and Use
The selection of brake pads directly affects driving safety, and the core follows the principles of "vehicle model adaptation, scenario matching, and compliant genuine products":
1. Select according to vehicle model: Choose semi-metallic high-wear-resistant materials for commercial trucks, NAO/ceramic materials for household cars, and low-metallic materials for SUVs/MPVs to avoid "overkill" or "underutilization".
2. Select according to scenarios: Focus on silence and low dust for urban commuting, high temperature resistance and thermal stability for long-distance high-speed driving, and high load and wear resistance for heavy-duty transportation.
3. Recognize compliant products: Reject uncertified and unmarked counterfeit products, which are prone to safety hazards such as thermal fade and brake failure.
4. Attach importance to replacement and running-in: Replace brake pads in time when the thickness is less than 3mm, and run in the new pads for 300-500 km after replacement to avoid sudden braking and continuous heavy braking.
Adhering to the core of "Safe Braking, Quality First", Shandong Huaruifeng Machinery Co., Ltd. bases itself on the technological trends of the brake pad industry, R&D and produces highly adaptive and stable brake pad products for the different scenario needs of passenger and commercial vehicles, strictly abides by national and international industry standards, provides one-stop braking component solutions for global customers, and contributes to the safety upgrading and industrial development of the automotive braking industry.
