Deep Dive into the Unique Properties of 655M13 Steel Grade

The 655M13 steel grade, also known as EN36B or 14NiCrMo13-4, has unique properties that make it suitable for various industries.

In terms of mechanical properties, 655M13 steel grade has a high tensile strength and excellent toughness. It is known for its high fatigue resistance and good impact strength, making it suitable for applications that require heavy-duty components or parts that undergo repetitive loading. Its excellent hardenability allows it to be heat treated to further enhance its mechanical properties.

The yield and tensile strength of 655M13 steel grade is typically around 820-1030 MPa and 1080-1280 MPa, respectively. These high strength properties make it suitable for applications that require components to withstand high stress or heavy loads, such as gears, crankshafts, and axles.

In terms of chemical composition, 655M13 steel grade is classified as a low-alloy nickel-chromium-molybdenum steel. The main elements in its composition are:

– Carbon (C): 0.10-0.16%
– Silicon (Si): 0.10-0.40%
– Manganese (Mn): 0.45-0.70%
– Nickel (Ni): 3.00-3.50%
– Chromium (Cr): 0.60-0.90%
– Molybdenum (Mo): 0.15-0.25%

These alloying elements contribute to the unique properties of 655M13 steel grade, such as its high hardenability, toughness, and fatigue resistance.

Due to its unique properties, 655M13 steel grade is commonly used in industries such as automotive, aerospace, and general engineering. It is particularly suitable for applications that require high strength, toughness, and fatigue resistance, such as transmission components, shafts, gears, and couplings. Its ability to be heat treated also makes it a preferred choice in industries where components need to withstand harsh and demanding operating conditions.