High temperature mechanical properties of 0Cr15Ni6MoCuNb (Custom 450)

Introduction

Custom 450 (UNS S45000) is a heat-treatable martensitic age hardenable stainless steel developed mainly for use in components with exceptional corrosion resistance and high strength. It is a slightly modified version of Grade 440C, containing 0.15% carbon, 6%Nickel, 1.6%Molybdenum and 0.3 Manganese and Cu. This steel is known for its uniform structure, wear resistance, and outstanding corrosion resistance. It is often utilized in aircraft components, gas turbines, fasteners and compressor blades.

Composition

Custom 450 (UNS S45000) is an iron-based material, mainly containing iron, carbon, nickel, molybdenum, manganese and copper. Table 1 shows the chemical composition of Custom 450.

Table 1. Chemical composition of Custom 450

Carbon (C) 0.15

Nickel (Ni) 6

Molybdenum (Mo) 1.60

Manganese (Mn) 0.30

Copper (Cu) 0

Mechanical properties

Custom 450 (UNS S45000) is a heat treatable austenitic steel, which can be adjusted for various mechanical properties. Table 2 shows the mechanical properties of Custom 450.

Table 2. Mechanical properties of Custom 450

Tensile Strength (σb) 930-1150MPA

Yield Strength (σs) 790-1010MPA

Elongation (δ5) 4-6%

High-temperature mechanical properties

Custom 450 is used extensively in applications which require high temperature stability. Table 3 shows the high-temperature mechanical properties of Custom 450.

Table 3. High-temperature mechanical properties of Custom 450

Tensile Strength @760°C 1160-1350MPA

Yield Strength @760°C 970-1130MPA

Elongation @760°C 5-7.5%

Conclusion

Custom 450 (UNS S45000) is a heat-treatable, age-hardenable stainless steel, mainly used in components where high corrosion resistance and strength are needed. It is composed of iron, carbon, nickel, molybdenum, manganese and copper and is highly resistant to corrosion and wear. This steel is capable of maintaining excellent mechanical properties at high temperatures, making it ideal for applications which require high temperature stability.

Custom 450, also known as Type 450 and UNS S45000, is a high-strength and highly corrosion-resistant material which is commonly used in a wide range of industries such as aerospace, automotive and food processing.

custom 450 is an iron-based austenitic alloy that also incorporates elements like chromium, nickel, molybdenum, cobalt and niobium. Its combination of properties makes it ideal for the production of tubular products and parts that require strength, corrosion resistance and high-temperature performance.

Custom 450 boasts excellent mechanical properties. It has a high yield strength of about 375 MPa (55 ksi) and a tensile strength of 600 MPa (87 ksi). The combination also provides good ductility and toughness. The material also has high creep strength, making it well suited to be used in applications that require high temperature performance and structural integrity.

Custom 450 is a precipitation hardening alloy that rates very well in terms of corrosion resistance. It is especially resistant to chloride-ion-induced stress corrosion cracking and other kinds of stress corrosion cracking, as well as sulfide and chloride-ion-induced cracking. It is also resistant to sea water, industrial acids, and oxidizing chemicals. The material’s good resistance to oxidation also makes it an excellent choice for certain types of furnace parts.

All in all, Custom 450 is a high-strength, highly corrosion-resistant, and high-temperature alloy. Its excellent mechanical properties, high yield strength, and good corrosion resistance makes it an ideal material for a wide range of industrial applications.