Heating the Hypo-eutectoid steels to 30°C above the upper critical temperature line, soaking at that temperature and then cooling slowly to the room temperature to form a pearlite & ferrite structure is called_______________________?

Related Mcqs:

Which of the following is prone to cup and cone fracture ?

A. Cast iron B. Soft brass C. Round specimen of ductile metal D. Flat tensile specimen of ductile metal...

Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of _______________ gms of zinc per m2 of steel strip ?

A. 5-10 B. 1000-1500 C. 120-500 D. 1500-3000...

Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot_____________________?

A. Piercing B. Spinning C. Drawing D. Extrusion...

Nitriding of a steel part does not increase its__________________?

A. Grain size B. Fatigue limit C. Surface hardness D. Wear resistance...

The cooling rate required to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours is ______________ BTU/hr?

A. 100 B. 200 C. 1000 D. 2000...