The document discusses stainless steel, an alloy of steel with at least 10.5% chromium. Stainless steel is corrosion resistant and durable. It was first produced in 1912 and is used where properties of steel and corrosion resistance are required. Different grades have varying amounts of chromium, nickel, and other elements. Stainless steel can be manufactured in sheets, bars, pipes and other forms and is used widely in architecture, industrial equipment and consumer products due its properties.

1. STAINLESS STEEL
PRESENTED BY:
SHIVANITAK
AANCHAL LALWANI
NIKITA SAHUJI
BELA RATHI
AMRUTA JAIN
KALYANI SETHI
NEHATANGDE

2. INTRODUCTION
 STAINLESS STEEL ALSO KNOWN AS INOX
STEEL
 IT IS A STEEL ALLOY (MINIMUM OF CHROMIUM
CONTENT BY MASS)
 DIFFERENT GRADES AND SURFACE FINISHES
ARE AVAILABLE.
 IT IS USEDWHERE BOTHTHE PROPERTIES OF
STEEL AND CORROSION RESISTENCE ARE
REQUIRED.
 STAINLESS STEEL LOOKS SIMILARTO
REGULARLY USED STEEL, BUT CHEMICAL
PROPERTIES DIFFER

3. HISTORY
 IN AUGUST 20, 1912, STAINLESS
STEEL WAS CAST FORTHE FIRST
TIME, WHEN IT WAS DISCOVERED
BY AN ACCIDENT BY MR. WHILE
BREARLEY
 FAMOUS EXAMPLE IS IRON
PILLAR BY ORDER OF KUMARA
GUPTA IN DELHI, AROUND AD 400.
 UNLIKE STAINLESS STEEL
NOWADAYS,THIS ARTIFACT OWE
THEIR DURABILITY NOTTO
CHROMIUM BUTTOTHEIR HIGH
PHOSPHOROUS CONTENT.

4. PROPERTIES
 OXIDATION
 POOR CONDUCTOR OF
ELECTRICITY
 CORROSION RESISTANT MATERIAL
 DURABLE
 STRONG
 ACID RESISTANCE

5. MANUFACTURING PROCESS
 MELTING AND
CASTING
 FORMING
 HEATTREATMENT
 DESCALING
 CUTTING
 FINISHING

6. MANUFACTRING COMPANIES
INDIA FOREIGN COUNTRIES
 STEEL AUTHORITY OF
INDIA LTD,TAMIL NADU.
 JINDAL SS LIMITED
HISSAR, HARYANA
 POSCO, EUROPE
 NIPOM STEEL, JAPAN

7. DIFFERENT GRADES AVAILABLE
 202-COMMERCIAL GRADE, CONSISTS O.4%
NICKEL AND 16% CHROMIUM. (130-160RS PER KG)
 316- INDUSTRIAL GRADE, CONSISTS OF 10-12 %
NICKEL AND 11% CHROMIUM.(300-360RS PER KG)
 304- CHEMICAL, PHARMACEUTICAL, FOOD
PROCESSING AND ARCHITECTURAL
ENGINEERINGWORKS. (8%NICKELAND 18%
CHROMIUM, 230- 270 RS PER KG)
 303, 410, 430, 304L, 316L etcARE DIFFERENT
GRADES AVAILABLE.

8. DIFFERENT FORMS AVAILABLE
•SHEETS
•BARS
•PIPES
•TUBES
(NOTE:AVAILABLE IN
VARIOUS SHAPESAND
SIZES)

9. ARCHITECTURAL USES
•USED FOR BOTH PRACTICAL
AND AESTHETIC REASON
•SOME DINNERS AMD
FASTFOOD RESTAURANT USE
LARGE ORNAMENTAL
PANELS AND FURNITURE
BECAUSE OF DURABILITY OF
MATERIAL.
•MANY OFTHE BUILDINGS
USINGTHIS RETAINTHEIR
ORIGINALAPPEARANCE.

10. EXAMPLES
•TYPE 316 STAINLESS
STEEL IS USED IN
EXTERIOR OF PETRONAS
TWINTOWER AND JIN
MAO BUILDING
(WORLD’S TALLEST
SKYSCAPERS.)

11. THANK YOU