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Q. Describe about Austenitic stainless steels?
Austenitic stainless steels (300 series) generally exhibit very good corrosion resistance in sulphuric acid service for low concentrations, (dilute acid < 10%) and very high concentrations (> 85%) for temperatures up to 100 °F (38°C). Improved corrosion resistance is offered by the stainless grades having higher chromium and/or higher molybdenum contents, as well as Cu, N, and Ni, e.g. (904L), particularly for the low concentration range. For further improved corrosion resistance, Alloy 20 or possibly some of the other corrosion resistant nickel based alloys should be considered. Refer to the "Nickel" section for further information.
A single jet pelton wheel runs at 300 rpm under a head of 510 m. the jet diameter is 200m, its deflection inside the bucket is 165 o and its relative velocity is reduced by 15% be
An open belt connects two flat pulleys. The pulley diameters are 300 mm and 450 mm and the corresponding angles of Cap are 160 o and 210 o . The smaller pulley runs at 200 r.p.
how calculate a stress intensity factor theoritcal?
CLASSIFICATION OF ELECTRODES The classification system used in the specification AWS A 5.1 which is for carbon steel electrodes follows established pattern for AWS filler metal s
What are rectangular combined footings? Rectangular Combined Footings: In the design of rectangular combined footings it is assumed that the footing is rigid. Soil pressure
(a) How is specific gravity of electrolyte (battery water) measured and what should be the value of specific gravity? (b) How would you measure battery voltage and what is its reco
Determine the dead load: A 250 mm diameter sewer is placed in a 2.75 m deep rectangular trench that is 0.65 m wide. This trench is backfilled with saturated clay having a unit
Q. Explain about Fired Heaters and Combustion Engines? Fired heaters and combustion engines shall normally be located at a safe distance from hazardous areas as they provide po
Find out maximum stress and elongation of the bar: A rectangular bar having uniform cross-section of 4 cm × 2.5 cm and of length 2 m is hanging vertically from rigid support.
explain the mig welding
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