The material selection of cylinder barrel forgings needs to comprehensively consider factors such as strength, wear resistance, corrosion resistance, processing performance and cost. The following are common material classifications and typical applications: 1. Carbon steel - Characteristics: Low cost, good processability, moderate strength, but poor corrosion resistance. - Common grades: - Q235: Common carbon structural steel, used for low pressure or non-critical components. -45 steel: High-quality carbon steel, with high strength after quenching and tempering treatment, suitable for medium-load cylinder barrels.
- Application: General industrial scenarios such as hydraulic cylinders and pneumatic cylinders. 2. Alloy steel - Characteristics: By adding alloying elements (Cr, Mo, Ni, etc.), its strength, toughness and high-temperature resistance are enhanced. - Common grades: -40CR: Good comprehensive performance after quenching and tempering, used for medium and high-pressure hydraulic cylinders. -42CrMo: High strength, fatigue resistance, suitable for heavy loads or impact loads. -30CrMnSi: High-strength cylinder barrels for aviation and military industries. - Application: Construction machinery, Marine hydraulic systems, etc. 3. Stainless steel - Features: Strong corrosion resistance, suitable for harsh environments, but relatively expensive. - Common grades: - 304/316: Austenitic stainless steel, used in corrosive environments such as food and chemical industries. -17-4PH (0Cr17Ni4Cu4Nb) : Precipitation-hardening stainless steel, featuring both high strength and corrosion resistance. - Applications: Marine equipment, medical machinery, chemical pipelines. 4. Tool steel - Characteristics: High hardness and wear resistance, but relatively brittle. - Common grades: Cr12MoV (cold work die steel), used for special cylinder barrels with high wear resistance requirements. 5. Other special materials - Aluminum alloys (such as 6061, 7075) : Lightweight requirements, but relatively low strength. Titanium alloy: High strength and corrosion resistance, used in high-end fields of aviation and aerospace.
The materials of the cylinder barrel forgings are complete. Depending on the material, heat treatment (such as quenching and tempering, nitriding) or surface treatment (chromium plating, spraying) may also be required to further enhance performance.