This document provides an overview of the industrial training process at the Alloy Steels Plant in Durgapur, India. It describes the key production areas including the steel melting shop, continuous casting shop, blooming and billet mill, forging shop, conditioning shop, and heat treatment and finishing shop. The goal of the training is to provide an understanding of the basic steel production process and working in a steel plant.

1. Industrial training
at
ASP (Alloy Steels Plant)
Durgapur
Presented by :
Kundan Chakraborty (14200712032)
Debayan Roy (14200712025)
Department of Mechanical Engineering, MSIT
Batch 2012-2016
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2.  Contents
Introduction
SMS
CCS
BBM
Forging
Conditioning Shop
HTFS
Conclusion
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3.  Introduction
 Set up on January,1965, under Hindustan Steel
Limited, now SAIL.
 Alloy steels, Special Steels and Stainless Steels.
 Capacity - 2.46 lakh tonnes of liquid steel
 1.78 lakh tonnes of saleable steel per year.
 Has the capacity to produce and supply 400
grades of products to areas like Defence, Railways,
Heavy Engineering, etc.
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4.  Steel Melting Shop (SMS)
The essential steps of steel making are :
 Charge preparation
 Charging
 Melting
 Slag off and reduction
 Finishing and tapping of heat
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6. Continuous Casting Shop (CCS)
 Liquid metal is poured into a mould and
partially solidified ingots are extracted,
both at same rate.
 Advantages of Continuous Casting:
1. Yield Improvement
2. Good surface finish of the product
3. High productivity
4. Cost effective
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8.  Blooming and Billet Mill
 Applies hot rolling.
 Rolling bed
 Blooming mill- 900 mill
 Avg. roll dia. – 900mm.
 Scarfing machine– only one in Asia with uniqueness
 Billet mill- 700, 650 mill
 Avg. roll dia. – 700mm (for 700 mill)
– 650mm (for 650 mill)
 Soaking Pit (for preheating of ingots before
rolling)
 Hot saws
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10. Forging Shop
 Hot forging – forging above recrystallization
temperatures to avoid fractures.
 Advantages:
 Metal is stronger than in casting.
 Strain-hardening defects are removed through
recrystallization.
 Increase in ductility.
 Reduces chemical inhomogeneity and removes pores.
 Disadvantages:
 Grain structure may vary.
 Less tolerance due to thermal contraction.
 Uneven cooling.
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12. Conditioning Shop
 Objective – to make the products of rolling and
forging ready for delivery and use.
 Requires visual inspection and Ultrasonic
inspections.
 Grinding, pickling or sand blasting for visual
inspection.
 Shot blasting
 Slow cooling box
 Straightening, flame cutting or saw cutting
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14. Heat Treatment and Finishing Shop
(HTFS)
 Objective- to modify various mechanical and metallographic
properties of the metal as per demand of operation.
 Normalising- to refine grain size and improve
mechanical properties.
 Annealing- to reduce hardness, facilitate machining and
relieve internal stresses.
 Hardening and Tempering- to increase hardness, strength
and wear resistance.
 ASP has six hardening furnaces and five annealing furnaces in
HTFS, all electric powered.
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15.  Conclusion
 Understanding the basic layout of any steel
plant.
 Working at a steel plant.
 Practical knowledge of steel production.
 Normal steel vs. special steels
 Waste management at highest level
 Experience
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16.  Acknowledgement
 www.sail.co.in
 www.google.co.in
 Alloy Steels Plant, Durgapur
 Biswajit Chattopadhyay
DGM(Mills), ASP Durgapur
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