Structural steels, Mechanical Engineering

Structural Steels

Low alloy steels are utilized for structural causes. That type of steels is needed to possess high yield stress, excellent ductility and high fatigue resistance. The high yield stresses consequence in direct weight saving in the structure part.

A typical low alloy structural steel will contain the given composition as:

C - 0.12 percent, Mn - 0.75 %m Si - 0.25 percent, Cu - 0.3 percent

It alloy steel has a yield strength of 350 N/mm2 and about 15 percent elongation after hot rolling. The presence of Cu enhances corrosion resistance whilst Mn and Si enhance weldability by preventing weld embrittlement.

Minute amounts of Ni, Cr and V added to these steels might enhance the yield strength to 625 N/mm2 if employed in quenched and tempered situation. Additions of Nickel, Cr and V do not affect the weldability.

Posted Date: 2/26/2013 6:25:42 AM | Location : United States







Related Discussions:- Structural steels, Assignment Help, Ask Question on Structural steels, Get Answer, Expert's Help, Structural steels Discussions

Write discussion on Structural steels
Your posts are moderated
Related Questions
Calculate plastic zone: Calculate plastic zone ahead of crack in above problem if σY = 250 MPa. Solution From Eq. Here KI is taken as KI max since the plastic

For the beam shown in Figure compute the deflection at the element nodes. The modulus of elasticity is psi and the cross section is as shown in the figure. Also compute the maximum

Periodic Motion: This is the motion that repeats after a regular interval of time. Frequency: This is the number of cycles finished in a unit time. Time Period: This is

The Aligned Dimension Command You can use this command to generate aligned dimensions. These are dimensions along inclined lines which cannot be dimensioned with the DIMLINEAR

The basic power transmission systems are 1. Belt drive 2. Chain drive and 3. Gear drives. Belt drive is commonly used for transmission of power when exact velocity rat

what is surging ?

Illustrate how the Rankine cycle efficiency is improved by the following : a. Lowering the condenser pressure. b. Increasing the pressure of steam. c. Superheating the ste

Firecracker Welding This is a semi automatic version of SMAW. A specially designed heavy - coated electrode, which can be of any length upto 2 m, is laid on the seam of a groo

The Diameter Dimension Command You can use the Diameter command to annotate a circle or an arc with a diameter dimension. To achieve this simply start the command, pick a point

Q.  A steel bar 10 cm broad and 8 mm thick is subjected to bending moment. The radius of the neutral surface is 100 cm. Found out the maximum and minimum bending stress in beam.