What is the properties of medium carbon steel?
Types of carbon steel and their properties
|Carbon content (wt.%)||Properties|
|Medium-carbon steel||0.25 – 0.60||Low hardenability, medium strength, ductility and toughness|
|High-carbon steel||0.60 – 1.25||High hardness, strength, low ductility|
How is the microstructure of medium carbon steel?
The microstructure and properties of medium-carbon steel (0.45% C) are studied after torsional severe plastic deformation (SPD) at a high quasi-hydrostatic pressure and elevated temperatures of from 300 to 450°C. The initial treatment prior to the SPD is hardening for martensite.
What are the mechanical properties of medium carbon steel?
|Hardness, Vickers (Converted from Brinell hardness)||170||170|
|Tensile Strength, Ultimate||565 MPa||81900 psi|
|Tensile Strength, Yield||310 MPa||45000 psi|
|Elongation at Break (in 50 mm)||16.0 %||16.0 %|
What are the properties of low medium and high carbon steel?
Low-carbon steel consists of less than 0.30% carbon. Medium-carbon steel consists of 0.30% to 0.60% carbon. And high-carbon steel contains more than 0.60% carbon. As the carbon content of steel increases, it becomes stronger and harder.
What is the application of medium carbon steel?
These steels are mainly used for making shafts, axles, gears, crankshafts, couplings, and forgings. Steels with carbon ranging from 0.40% to 0.60% are used for rails, railway wheels, and rail axles.
What is a good medium carbon steel?
Products using medium grades of carbon steel include gears, axles, studs and other machine components that require optimal combinations of strength and toughness. Medium carbon steels have good machining characteristics, and one of the more popular grades used in machined steel product is AISI 1045.
Why is medium carbon steel used for train tracks?
Steel used to make rails must be resistant to fatigue or surface cracking. The aim is for the steel to have a long fatigue life. Rail steel is chosen to achieve a balance between fatigue life and wear resistance. If the steel is too hard, it will allow cracks to develop on the surface.
What are the uses of medium carbon steel?
Is medium carbon steel strong?
Medium Carbon Steel: Typically has a carbon range of 0.31% to 0.60%, and a manganese content ranging from . This product is stronger than low carbon steel, and it is more difficult to form, weld and cut. Medium carbon steels are quite often hardened and tempered using heat treatment.
What are the three types of carbon steel?
Carbon Steel is divided into three subgroups depending on the amount of carbon in the metal: Low Carbon Steels/Mild Steels (up to 0.3% carbon), Medium Carbon Steels (0.3–0.6% carbon), and High Carbon Steels (more than 0.6% carbon). Alloy Steels contain alloying elements like nickel, copper, chromium, and/or aluminum.
How hard is medium carbon steel?
Medium Carbon Steel: Typically has a carbon range of 0.31% to 0.60%, and a manganese content ranging from . 060% to 1.65%. This product is stronger than low carbon steel, and it is more difficult to form, weld and cut. Medium carbon steels are quite often hardened and tempered using heat treatment.
How does the optical microstructure of a steel work?
Figure 10: The process by which a colony of pearlite evolves in a hypoeutectoid steel. The final optical microstructure appears as in Fig. 11, consisting of colonies of pearlite, i.e., regions which participated in cooperative growth at a common front.
Why is pearlite reduced in the microstructure of steel?
In Fig. 9, the low carbon concentration of the steel allows much more allotriomorphic ferrite to form with the grains therefore appearing equiaxed because of the effects of hard impingment. The amount of pearlite is reduced because of the lower carbon concentration of the steel.
How are microhardness and tensile properties of steel measured?
Distribution of microhardness over the diameter of test pieces of steel 45 (h is the distance from the center) after heating without deformation (a) and after torsion under quasi-hydrostatic pressure (QHP) at elevated temperatures (b ). The vertical lines present the region from which the test pieces for the tensile mechanical tests have been cut.
How are microstructures used in metallurgical theory?
Apart from their aesthetic beauty, microstructures become meaningful when examined in the context of their metallurgical theory. The symbols used to represent each phase are as follows: Phase Symbol Austenite γ Allotriomorphic ferrite α Idiomorphic ferrite αI Pearlite P Widmanstätten ferrite αw Upper bainite αb Lower bainite αlb Acicular ferrite