Cast Iron Railway Brake Blocks High friction Composite Brake Shoe

Cast Iron Brake Blocks / High friction Composite Brake Shoe for railway braking

Brakes are used on the cars of railway trains to enable deceleration, control acceleration (downhill) or to keep them standing when parked. While the basic principle is familiar from road vehicle usage, operational features are more complex because of the need to control multiple linked carriages and to be effective on vehicles left without a prime mover. Clasp brakes are one type of brakes historically used on trains.

Cast iron Train Brake pads / Composite Brake Shoe / Brake Block
Chemical compositions of steel support
C % < 0.13%,
S % < 0.062%,
P % < 0.062%.


1. Physical and mechanical properties of composite

2. Operational heat

Our composite brake block won't melt or burn and continues to work at a temperature of 250℃
It may burn but causes no flame at a temperature of ≥ 400℃.

3. Materials of cast iron railway brake block and composite railroad brake shoe

A. The materials of composite brake block consist of 3 main substances including reinforcing fiber, organic/inorganic filler and resin bound.
B. It has a high level of uniformity.
C. It can be separated from the backing plate.
D. It contains no asbestos, lead, zinc or other mixtures.
E. It also contains no toxic materials.
F. The hardness of the material is lower than the wheel's.
G. It causes no strong smell in friction.

5. Performance

A. Excessive wear won't be caused on the surface of the wheel and the composite brake block.
B. The composite brake block will not cause the wheel porous or cracked.
C. It won't stick at the wheel during braking therefore won't cause uneven wheel surface.
D. It won't cause wheel slipping during full braking in wet conditions.

6. Test procedure

A. Vernier caliper or other methods are used to test the dimension of the brake block.
B. Laboratory test
Specific gravity test: standard ASTM D 792 or equivalent method
Coefficient of friction test: Standard ASTM D 1894 or equivalent method
Hardness test: standard ASTM D 785 or equivalent method
Shear resistance test: standard ASTM D 732 or equivalent method
Press test: Standard ASTM D 695 or equivalent method
Bending test: Standard ASTM D 790 or equivalent method

Thermal properties test: standard ASTM D 177 or equivalent method.



If you have any other models of rail/ rail fastener, welcome to contact me.

Founded in 2013, located at No.199 Huanlou Road, development zone Kunshan city, we Suzhou Zhongyue Railway Material Co., Ltd. Is a leading and reputed manufacturer of qualified railway fasteners in China.

We are certified by ISO 9001:2008. We have a complete set of inspection equipments to strictly control the quality of each production procedure and make sure all the products reach the international standards and customers’ requirements.

ZY team is composed of high professional senior engineers, professional technicians and a group of highly experienced operation workers, this is the strong guarantee of our products quality. We have our own R&D team, after-sales service team and quality-assurance team with the most advance technology and management concepts.

With advanced technology, comprehensive testing facilities, excellent management team and powerful processing capacity, our products have been exported worldwide. After many times of inspections by BV, SGS，ABS etc, our products have been well recognized by our customers. We are qualified supplier of Kazakhstan Railway, Thailand Railway, Zambia Railway, Indonesia Railway, Malaysia Railway, Sweden Railway, New Zealand Railway, American Railway, Canada Railway etc, supplying all kinds of railway material to them for many years without any quality complaint.

We not only can produce according to International standards, customers’ drawings and samples, but also can provide design proposal by our own high standard R&D department.

With the principles of quality first and customers first, ZY Rail enjoys bulk popularity and high reputation at home and abroad, while having many customers all over the world. With powerful strength and broad vision, ZY rail is moving towards internationalization of enterprises.