Understanding the Strengths and Uses of 416S21 Steel Grade

[ad_1] The 416S21 steel grade is a free-machining martensitic stainless steel with good corrosion resistance. This steel grade has a high sulfur content which provides excellent machinability. It also has good resistance to mild acids, alkalies, and some organic solvents.

Mechanical Properties:
– Tensile Strength: The tensile strength of 416S21 steel grade is typically in the range of 500-700 MPa.
– Yield Strength: The yield strength is approximately 275 MPa.
– Hardness: The hardness of 416S21 steel grade is typically in the range of 24-31 HRC.

Technical Properties:
– Density: The density of 416S21 steel grade is about 7.75 g/cm3.
– Thermal Expansion: The coefficient of thermal expansion is approximately 10.4 x 10-6 /°C.
– Thermal Conductivity: The thermal conductivity is about 24 W/m°C.
– Electrical Resistivity: The electrical resistivity is approximately 0.55 x10-6 Ω.m.

Chemical Composition:
The chemical composition of 416S21 steel grade typically includes:
– Carbon (C): 0.15% maximum
– Chromium (Cr): 12-14%
– Manganese (Mn): 1.25% maximum
– Silicon (Si): 1.00% maximum
– Phosphorus (P): 0.06% maximum
– Sulfur (S): 0.15-0.35%
– Iron (Fe): Balance

Uses:
416S21 steel grade is commonly used in applications such as:
– Shafts
– Valve components
– Nuts and bolts
– Fasteners
– Pump and motor shafts
– Surgical instruments

Overall, 416S21 steel grade is a versatile martensitic stainless steel with good machinability and corrosion resistance, making it suitable for a wide range of applications in various industries.
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