EN8D

EN8D Carbon Steel Product Overview

EN8D is a medium-carbon steel grade, equivalent to SAE 1045 or C45E, known for its good balance of strength, toughness, and wear resistance. As an unalloyed carbon steel, it is widely used for general engineering applications requiring higher strength than mild steel but without the need for alloying elements. EN8D is typically supplied in the normalized or hot-rolled condition (max 255 HB), offering excellent machinability and weldability. Its high carbon content allows for heat treatment to achieve improved hardness and strength, making it suitable for components subjected to moderate stress and wear.

Applications

EN8D is used in a variety of engineering and industrial applications where strength and durability are required:

Engineering Components:

• Shafts, axles, spindles, and gears for machinery and automotive applications.
• Crankshafts, connecting rods, and camshafts.
• Bolts, studs, and high-tensile fasteners.

Industrial:

• Forged components like couplings, levers, and brackets.
• Tool holders, jigs, and fixtures.
• Machine parts such as rollers, sprockets, and bushings.

Other Uses:

• Agricultural machinery components like plow beams and tiller blades.
• Construction equipment parts requiring moderate strength.
• General-purpose fabrication and repair work.

Chemical Composition

The chemical composition of EN8D ensures its strength and machinability:

• Carbon (C): Provides hardness and strength, suitable for heat treatment.
• Manganese (Mn): Enhances strength and toughness.
• Silicon (Si): Improves elasticity and strength in small amounts.
• Phosphorus (P) and Sulfur (S): Kept low to ensure good weldability and avoid brittleness.

Supply Size

EN8D is available in various forms and sizes to meet industrial requirements:

• Round Bars:
  Diameter 16 mm to 700 mm.
• Flat Bars:
  Minimum: 10 mm thickness x 80 mm width.
  Maximum: 500 mm thickness x 2000 mm width.