17-4 stainless steel is a versatile steel designed for industrial applications, also known as 630 precipitation hardened stainless steel strip. Alloy 17-4PH is a martensitic stainless steel whose main component is copper (the main components of 316L alloy are chromium and nickel). .
17-4 stainless steelfeatures:
After heat treatmentthe mechanical properties of strip products are more comprehensive, and can achieve the highest compressive strength of 1100-1300 MPa (316L is only about half, 500-600 MPa).
17-4 PH stainless steel strip cannot be used at temperatures above 300°C or very low temperatures,It has good corrosion resistance to the atmosphere and diluted acids or salts. Its corrosion resistance is the same as that.304 is the same as 430,Not as good as316L.
evenCompared with 316L, 17-4PH has better mechanical properties, is more suitable for the manufacture of mechanical parts, and has better strength and hardness.
316L is cheaper, has better toughness and corrosion resistance.
Main applications of 17-4PH stainless steel：
17-4PH is more suitable for industrial parts, such as
High wear tools
Lightweight support
key socket
gear
Flanges and valves
stationery equipment
airplane parts
Oilfield Equipment
Chemical equipment
Pump accessories and shafts
Other precision parts
Main application areas of 316L stainless steel
Chemical and petrochemical industry
food processing
pharmaceutical equipment
medical equipment
drinking water
wastewater treatment
Marine applications
17-4 stainless steelPhysical properties table:
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