1. Classification introduction:
15-5PH (also known as PH15-5) is a high-strength, corrosion-resistant stainless steel that belongs to martensitic age-hardened stainless steel. It has excellent tensile strength and hardness, but also has good toughness and thermal fatigue resistance. 15-5PH is mainly composed of Cr, Ni, Cu, Nb and C and other elements, with excellent corrosion resistance and plasticity, suitable for the manufacture of high-strength, high-corrosion resistance parts and components.
2. Performance:
▪ Strength performance: 15-5PH has excellent strength and hardness, which are higher in the annealed state and higher in the age hardening state.
▪ Toughness: The steel has good plasticity and toughness in the annealed state, and in the age hardening state, although the strength and hardness are higher, but the toughness is relatively poor.
▪ Thermal fatigue resistance: 15-5PH has good thermal fatigue resistance and can maintain good mechanical properties under high temperature environment.
▪ Wear resistance: The steel has good wear resistance in the annealing state, and in the age hardening state, due to the increase in hardness and strength, the wear resistance is also improved.
▪ Bite resistance: 15-5PH has good bite resistance and impact toughness, and can withstand large bite force and impact load.
3, performance requirements:
The chemical composition of 15-5PH steel should meet the requirements of the standard, and should have good mechanical and physical properties. Its hardness should be between HRC34-44, the tensile strength should be between 930-1310MPa, the yield strength should be between 725-1205MPa, and the elongation should be between 5-15%.
4. Product classification:
15-5PH steel is suitable for manufacturing high-strength, corrosion-resistant parts and components in aviation, aerospace, chemical, automotive and other fields, and its product classification mainly includes sheet, pipe, bar, wire and so on.
5. Process performance:
15-5PH steel has good machinability and heat treatment properties, and can be processed by quenching, tempering, aging and other processes to achieve the required mechanical and physical properties.
6, common mold:
15-5PH steel is suitable for the manufacture of high strength, high corrosion resistance of the mold and parts, such as the aerospace field of aircraft engine parts, automotive brake system parts.
7, steel grade:
The 15-5PH's national brand is GB/T 20878-2007, and its international brand is AISI 630.
8. General Trends:
15-5PH steel has a wide range of application prospects, especially in the aerospace field, chemical field and automotive manufacturing fields and other important areas, for high strength, high corrosion resistance and high plasticity of parts and components demand is growing, so 15-5PH steel will have a broader application prospects.
