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Stainless Steel Chemical Composition, Grade Chart, Tables and PDF

Stainless steel is the material which is well known for its high corrosion resistance in atmosphere and durability, and, for this reason, it is widely used in many industries. In its constitution, usually there are iron, chromium, nickel, and manganese, as the major constituents. Other elements like molybdenum and nitrogen can also be present but it depends on the grade of steel. The most standard grades are 304, 316, and 430/410 which offer different property set suited for each application. Such as, 304 is widely used in food processing equipment because it has extra impressive resistance to corrosion. In contrast, 316 serves offshore environments well. Within grades of steel, the chemical compositions may differ considerably, and in turn, they will determine the strength, ductility, and weldability of the material. A detailed overview of the composition and tables showing percentage breakdown are available for the engineers, manufacturers, and researchers in a PDF file format so that they have the important reference material displaying the characteristics of stainless steel.

Stainless Steel Chemical Composition Table

Chemical composition of the stainless steel table usually consists of the alloy present in the various grades of stainless steel which contain chromium, nickel, manganese, carbon, silicon, sulfur, phosphorus, sometimes accompanied by molybdenum, copper or titanium. The features play a part in defining the properties of stainless steel such as its resistance to corrosion, strength, and machinability. For example, high chromium content would provide better resistance to corrosion, and nickel will improve the metal’s inherent flexibility and toughness. Different grades consist of individual compositions adjusted to meet the varied applications needs for kitchen supplies to industrial machinery. Such tables are a good point of reference from which one may select the appropriate grade of stainless steel based on specific needs.

Stainless Steel Composition Table
S.S. 200 202 301 302 302B 303 303Se 304 304L 305 308 309 309s 310 310s 314 316 316L 317 321 347
Carbon 0.12 0.12 0.15 0.15 0.15 0.15 0.15 0.08 0.03 0.12 0.08 0.20 0.08 0.25 0.08 0.25 0.08 0.03 0.08 0.08 0.08
Manganese 7.5/10 5.5/7.5 2.00 2.00 2.00 2.00 2.002.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00
Silicone 0.9 0.9 1.00 1.00 2.0/3.0 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.5 1.5 1.5/3.0 1.00 1.00 1.00 1.00 1.00
Chromium 14/16 16/18 16/18 17/19 17/19 17/19 17/19 18/20 18/02 17/19 19/21 22/24 22/24 24/26 24/26 24/26 23/26 16/18 18/20 17/19 17/19
Nickel 0.5/2.0 0.5/4.0 6.0/8.0 8.0/10 8.0/10 8.0/10 8.0/10 8.0/12 8.0/12 10/13 10/12 12/15 12/15 19/22 19/22 19/22 10/14 10/14 11/15 9.0/12 9/13
Molybdenum 0.2 0.2                             2.0/3.0 2.0/3.0 3.0/4.0    
Phosphorus 0.06 0.06 0.045 0.045 0.045 0.20 0.20 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045
Nitrogen 0.25 0.25                                      
Suiphur     0.03 0.03 0.03 0.15MIN - 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03
Selenium             0.15MIN                            
Aluminium                                          
Titanium                                       5XC  
Cb+Ta                                         10XC

Chemical Composition of AISI wrought Stainless Steels

Chemical Composition of AISI Stainless Steel
S.S.Grade 201 202 301 302 304 304L 309 309S 310 310S 316 316L 321 347 409 430 434 410
Density 7.9 7.9 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 7.7 7.8 7.8 7.8
Sp.Elec. Resist 20C micro 72 72 72 72 72 72 78 78 78 78 74 74 72 73 60 60 60 57
Sp. Heat (0-100c) 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 46 46 46 46
Ther. Conductivity 16.3 16.3 16.3 16.3 16.3 16.3 14.2 14.2 14.2 14.2 16.3 16.3 16.3 16.3 25.1 26.0 26.0 25.1
  15.7 18.4 17.0 17.2 17.3 17.3 15.0 15.0 15.9 15.9 15.9 15.9 16.6 16.6 11.7 10.4 11.9 9.9
Mild water X X X X X X X X X X X X X X X X X X
Industrial X X X X X X X X X X X X X X   X X  
Marine X X X X X X X X X X X X X X     X  
Salt Water                   X X              
Mild X X X X X X X X X X X X X X X X X X
Oxidising X X X X X X X X X X X X X X   X X  
Reducing                     X X            
Abrasion Resistance Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good
Cold Forming Fair Good Good Excel Excel Good Good Good Good Good Good Good Good Good Fair Fair Fair Fair
Weldability Good Good Excel Excel Excel Excel Good Excel Good Excel Excel Excel Excel Excel Fair Fair Fair Fair
Melting Flange 1400 1420 1400 1450 1370 1400 1400 1430 1430 1510 1480 1530
Scaling Temp 800 800 800 900 900 900 1100 1100 1100 1100 900 900 900 900 700 800 800 700

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Stainless Steel
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