AISI 440c Carbon Steel Hot Rolled Round Bar Flat Plate

• Type: Round
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Composition: Stainless Steel Scrap
• Technique: Hot Rolled
• Shape: Bar
• Surface Treatment: Black/Milled/Machined
• Model NO.: round bar
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Tool Steel Bar
• Transport Package: Wooden
• Specification: 6-400mm 2mm-25mm
• Trademark: Smooth
• Origin: China
• HS Code: 8455300000
• Production Capacity: 5000 Ton/Year

Product Description

AISI 440C Carbon Steel
440C stainless steel is a high-carbon martensitic stainless steel known for its excellent hardness, wear resistance, and corrosion resistance. It belongs to the 400 series of stainless steels and is widely used in applications requiring high strength and durability.

Chemical Composition:
·Carbon (C): 0.95-1.20%
·Chromium (Cr): 16.00-18.00%
·Manganese (Mn): 1.00% max
·Silicon (Si): 1.00% max
·Phosphorus (P): 0.04% max
·Sulfur (S): 0.03% max
·Molybdenum (Mo): 0.75% max (optional)

Heat Treatment:
·Hardening: Typically heated to temperatures between 1010°C to 1065°C (1850°F to 1950°F) and then quenched in oil or air to achieve maximum hardness.
·Tempering: Tempering is performed at temperatures ranging from 150°C to 370°C (300°F to 700°F) to enhance toughness and reduce brittleness.

Properties:
·Hardness: Achieves hardness in the range of 57-62 HRC (Rockwell C scale) after heat treatment.
·Wear Resistance: Excellent wear resistance, making it suitable for applications with abrasive materials and high-impact loads.
·Corrosion Resistance: Good corrosion resistance in mild environments, but may deteriorate with prolonged exposure to corrosive substances.
·Toughness: While it is known for its hardness and wear resistance, it may have lower toughness compared to lower-carbon stainless steels.
·Dimensional Stability: Maintains dimensional stability even under high-temperature conditions, suitable for precision components and tools.

Applications:
·Bearings: Commonly used in bearing components, including ball bearings, roller bearings, and bearing races due to its hardness and wear resistance.
·Cutting Tools: Utilized in the manufacturing of cutting tools such as knives, scissors, surgical instruments, and razor blades.
·Valve Components: Suitable for valve components in chemical processing and oil & gas industries due to its corrosion resistance and dimensional stability.
·Mold Inserts: Finds application in injection molding and die casting as mold inserts and cores due to its hardness and abrasion resistance.

Machinability:
·Machining 440C stainless steel can be challenging due to its high hardness. Proper tooling, cutting parameters, and coolant use are essential for successful machining operations.
Surface Finish:
·Achieving a smooth surface finish on 440C steel requires precision grinding or polishing processes due to its hardness and wear resistance.