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LOW ALLOY CREEP RESISTING ELECTRODES AND ELECTRODES FOR CRYOGENIC APPLICATIONSThe flux coating contains small amount of alloying elements like Cr, Mo and sometimes V for creep resistance. By addition of these alloys these steels become air hardening and therefore preheating and stress relieving after the welding are a must. The electrodes in this category are known as 5 Cr-½ Mo. For cryogenic applications the addition of Ni 3.5 % is very useful. Such steels can be used u p t o ( i . e ) 5 0° C to - 60 ° C with 2.5 % Ni and upto 100 ° C with 3.5% Ni.
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
Determine a least square geometric curve y = ax b to the following data : x: 1 2 3 4 5 y: 0.5 2 4.5 8 12.5 Fit a straight line y = a + bx to the following data b
What are the primary benefits of using computerized layout procedures vs. Systematic Layout Planning (SLP) procedures done by hand?
Direct Current Using direct current, the tungsten electrode may be connected to either the negative or the positive terminal of the supply of power. In almost all cases, ele
How to calculate helix angle for the purpose of designing?
Q. Why we need additives explain? Additives are the materials added in small quantities to the moulding sand in order to enhance its exiting properties and to impart to it spec
Thermit Welding This process utilises the intense heat developed during the reaction between iron oxide and aluminium. When a mixture of three parts of iron oxide and one part
What is Shallow foundation Shallow foundations are those where the depth D
What are the Safety consideration in under batteries and gear ? Ans: Alternator:- 1. Suspension pin with cotter pin and anti- rotation plate 2. Alternator safety cha
Evaluate the specific enthalpy - thermodynamics: Steam is being generated in a boiler at a pressure of 15.25 bar. Calculate the specific enthalpy when ( i ) Steam i
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