Electrodes- stainless steel electrodes, Mechanical Engineering

Assignment Help:

Stainless Steel Electrodes

A variety of stainless steel electrodes are now being manufactured to produce weld metal similar to composition of most base metals. However, the analysis of the core wire may differ from that of the base metal in order to improve corrosion resistance of the weld deposit, eliminate under bead cracking and minimize carbide precipitation. In the transfer of metal through the arc very little nickel is lost from nickel bearing stainless steel electrodes. There is a slight loss of chromium and a greater loss of some of the other elements but this loss may be compensated by alloy additions to the coverings.

Manganese and silicon are included in the stainless steel electrode coverings to reduce oxidation. Titanium is added to promote weldability, to produce an easily removable slag and to prevent carbide precipitation. In most designs, columbium is used to prevent carbide precipitation. Lime has been an extremely important ingredient in the covering since it tends to eliminate hydrogen, the formation of which (as stated earlier in regard to low hydrogen electrode coverings) leads to under bead cracking.

Any material that is high in carbon is excluded because of the affinity of chromium for carbon especially at welding temperatures. The low hydrogen type covering used on stainless steel electrodes is similar to that employed on the low hydrogen type carbon steel welding electrodes.


Related Discussions:- Electrodes- stainless steel electrodes

Fifth service and sixth service-mandatory checks , Fifth Service and Sixth ...

Fifth Service and Sixth Service Following extra mandatory checks are required during the fifth service of a 125 cc motorcycle : Inspect engine oil and top up as re

Solve the gauss elimination method, a) By Gauss elimination method, solve ...

a) By Gauss elimination method, solve x+2y+z =3 ; 2x+3y+3z =10 ; 3x-y+2z =13 b) Write a ‘C' program to find the solution of the above system of equations by Gauss Jordan meth

Resistance welding processes, RESISTANCE WELDING PROCESSES The followin...

RESISTANCE WELDING PROCESSES The following five are the main types of resistance welding: 1. Spot welding 2. Seam welding 3. Projection welding 4. Upset butt we

Thermodynamics, we can use in proove of energy is a propertyof system we ca...

we can use in proove of energy is a propertyof system we can use (E) instead of (dQ-dW)

Illustrate the general shear failure in bearing capacity, Illustrate the ge...

Illustrate the general shear failure in bearing capacity. General Shear Failure: In this case of failure, contiguous failure surfaces develop between the edges of the footin

Show bolt material, Q. Show Bolt Material? Bolt material must be select...

Q. Show Bolt Material? Bolt material must be selected with adequate yield strength at the operating temperature to provide the required strength to properly seat the gasket. It

Average force of resistance, Average force of resistance: A gun weighi...

Average force of resistance: A gun weighing 500 kN is utilized to fire a shell weighing 10 kN in a horizontal direction with a velocity of 500 metres/sec. With what initial ve

Calculate stress to cause failure - creep parameters, Calculate stress to c...

Calculate stress to cause failure - Creep Parameters: From creep tests on 713 C alloy the constant C in Larson-Miller parameter is determined as - 85.75. In rupture test a spe

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd