series
Valve steel is used in the manufacture of gasoline engine and diesel engine intake and exhaust valve necessary materials, is also the key material in the whole engine.
(1) The valve steel needs to have enough high temperature strength and toughness, high hardness and wear resistance at the working temperature;
(2) Better oxidation resistance and corrosion resistance in the working medium.
Main product Features
● Product quality: products with high dimensional accuracy, high purity, uniform internal and external organization, product quality has reached the advanced level in China.
● Market development: The products have achieved the quality certification or batch supply of Chongqing SAN Ai, Shanghai Eaton, Jinan Ward and other head valve factory, and finally used in the main engine factories at home and abroad on the engine, the monthly sales reached more than 500 tons.
● Application: The products are mainly used in automobile, engineering vehicle, ship engine inlet and exhaust valve.
Manufacturable list
List of heat resistant steels manufactured for internal combustion engine air valves | |||
classification | brand | specifications/mm | The main application |
Austenitic stainless steel | 21-2N、21-4N、21-4NWNb | Φ5.5~15 | Exhaust valve of gasoline engine and diesel engine |
Martensitic stainless steel | 51Cr8Si2、 42Cr9si2、45Cr9Si3、40Cr10Si2Mo | Φ5.5~20 | Gasoline engine, diesel engine intake valve, high temperature fasteners |
Valve alloy | Ni30 | Φ5.5~15 | Turbocharged engine exhaust valve |