STAINLESS STEEL PRESENTED BY:SHIVANI TAKAANCHAL LALWANINIKITA SAHUJIBELA RATHIAMRUTA JAIN KALYANI SETHI NEHA TANGDE

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 USED WHERE BOTH THE PROPERTIES OF

STEEL AND CORROSION RESISTENCE ARE REQUIRED.

STAINLESS STEEL LOOKS SIMILAR TO REGULARLY USED STEEL, BUT CHEMICAL PROPERTIES DIFFER

HISTORY

IN AUGUST 20, 1912, STAINLESS STEEL WAS CAST FOR THE 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 NOT TO CHROMIUM BUT TO THEIR HIGH PHOSPHOROUS CONTENT.

PROPERTIES OXIDATION POOR CONDUCTOR OF

ELECTRICITY CORROSION RESISTANT

MATERIAL DURABLE STRONG ACID RESISTANCE

MANUFACTURING PROCESS

MELTING AND CASTING

FORMING HEAT TREATMENT DESCALING CUTTING FINISHING

MANUFACTRING COMPANIES

INDIA FOREIGN COUNTRIES STEEL AUTHORITY OF

INDIA LTD, TAMIL NADU.

JINDAL SS LIMITED HISSAR, HARYANA

POSCO, EUROPE NIPOM STEEL, JAPAN

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 ENGINEERING WORKS. (8%NICKEL AND 18% CHROMIUM, 230- 270 RS PER KG)

303, 410, 430, 304L, 316L etc ARE DIFFERENT GRADES AVAILABLE.

DIFFERENT FORMS AVAILABLE•SHEETS•BARS•PIPES•TUBES(NOTE: AVAILABLE IN VARIOUS SHAPES AND SIZES)

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 OF THE BUILDINGS USING THIS RETAIN THEIR ORIGINAL APPEARANCE.

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

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