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{"title":"High Strength Heat Resistant Steel 321H\/S32169\/1.4940 Stainless Steel Plate\/Tube","imgUrl":"https:\/\/img.chinax.com\/nimg\/05\/aa\/beed2599107fadeea845b2988141-200x200-1\/high_strength_heat_resistant_steel_321h_2fs32169_2f1_4940_stainless_steel_plate_2ftube_2froll_complete_specifications.jpg","attrs":{"Brand Name":"Jiangsu Zhonggong Special Metallurgical Co., Ltd","Model Number":"Heat-resistant steel","Certification":"ISO Certificate","Place of Origin":"China"}}
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20# Alloy Is A Low-Carbon Steel With Good Machinability And Weldability For Structural Use.
20# Alloy is a medium-carbon steel primarily used for structural and mechanical applications where a good balance of strength, toughness, and wear resistance is required. This steel grade is known for its reliability in various industrial contexts due to its favorable combination of mechanical properties and ease of processing.
Chemical Composition:
20# Alloy contains the following key elements:
Carbon (C): 0.17-0.23% – The carbon content provides a good balance of strength and hardness while maintaining reasonable ductility and machinability.
Manganese (Mn): 0.35-0.65% – Manganese improves tensile strength and hardness, and also contributes to the alloy's toughness and wear resistance.
Silicon (Si): ≤0.35% – Silicon aids in deoxidization during steelmaking, which helps to produce a cleaner steel with a smoother surface finish.
Phosphorus (P): ≤0.035% – Low phosphorus content helps avoid brittleness and ensures that the steel remains tough and ductile.
Sulfur (S): ≤0.035% – Sulfur is kept low to minimize inclusions and ensure better machinability and overall strength.
Mechanical Properties:
20# Alloy offers a range of mechanical properties suitable for various applications:
Tensile Strength: 370-530 MPa – Provides strong resistance to pulling forces, making it suitable for structural and mechanical uses.
Yield Strength: ≥245 MPa – The yield strength ensures that the material can withstand significant stress without permanent deformation.
Elongation: ≥25% – Indicates good ductility, allowing the steel to be stretched or formed without breaking, which is important for fabrication and shaping.
Density: Approximately 7.85 g/cm³ – Typical for medium-carbon steels, balancing strength with weight.
Hardness: HB 150-200 – Provides good wear resistance while retaining sufficient flexibility and machinability.
Applications:
20# Alloy's balanced properties make it suitable for a range of structural and mechanical applications:
Construction: Used for manufacturing structural components such as beams, columns, and frames, where moderate strength and good weldability are required.
Mechanical Parts: Ideal for producing various mechanical parts and components, including shafts, gears, and axles, where durability and resistance to wear are needed.
Automotive Industry: Employed in the production of automotive components that require a combination of strength and formability, such as engine parts and transmission components.
Metal Fabrication: Suitable for general metal fabrication, including the production of plates, rods, and tubes that need to be machined or formed.
Summary:
20# Alloy is a versatile medium-carbon steel known for its well-rounded mechanical properties, including a good balance of strength, ductility, and hardness. Its chemical composition and performance characteristics make it suitable for a variety of structural and mechanical applications, from construction and automotive parts to general metal fabrication. With its reliable performance and ease of processing, 20# Alloy is a preferred material in industries requiring durable and adaptable steel solutions.
Main Products
Stainless Steel Series304,304L,321,316L,317L,309s,310s,904L,410,420,430,441,409,436,441,439,630 etc.
Duplex stainless steel series 2205,2507 etc.
Hastelloy C-276, B-2, C-2000, etc.
Nickel-based alloy series Inconel625,718,Incoloy825,800H,Monel400, etc.
High temperat... Main Products
Stainless Steel Series304,304L,321,316L,317L,309s,310s,904L,410,420,430,441,409,436,441,439,630 etc.
Duplex stainless steel series 2205,2507 etc.
Hastelloy C-276, B-2, C-2000, etc.
Nickel-based alloy series Inconel625,718,Incoloy825,800H,Monel400, etc.
High temperat...