Features stainless steel

Stainless steel is an alloy of iron-chromium-carbon with a minimum of 10.5% chromium content by weight Chromium creates a tiny layer (10-100 nm) of chromium trioxide (Cr2O3), which protects the metal substrate from oxidation and corrosion. Besides chromium, stainless steel may contain other alloying elements such as nickel, molybdenum, manganese, etc. 

 

Stainless steel produced in electric furnaces with remelting scrap (scrap), ferroalloys (eg ferrochrome, ferronickel, etc.) and other metallic additions. They are widely used in many applications requiring corrosion resistance for economic reasons (eg chemical industry), for aesthetic reasons (eg architecture) or for health reasons (eg, cooking utensils). 

 

Compared to common steels, stainless steels, in addition to much higher corrosion resistance, and additionally exhibit a higher mechanical strength. However, it is harder than common steel and therefore more unprocessable. Stainless steels also exhibit low thermal conductivity compared to ordinary steels.

 

The advantages of stainless steel with a look 

• Completely resistant to rust

• Stainless steel protects itself. Reacts with atmospheric oxygen and forms a protective membrane.

• There is no surface coating. That appears on the surface there throughout the mass of the material.

• Resistant to temperature and fire. Cigarettes or the flame does not leave any mark on the surface.

• 100% anakyklosimo. 

 

Technika Features stainless steel AISI 304 

Material Description                           Stainless steel DIN 1.4301

Specifications in DIN                          DIN 1.4301, DIN 2463, DIN 17451

Corresponding specifications               AISI 304, UNS S30400

 

Composition% by weight

Element         %       Notes

C max 0.08

Cr 18 – 20

Ni 8 - 10.5

Fe 66.345 – 74

Mn max 2

P max 0.045

S max 0.03

Si max 1   

 

Physical Properties 

Description                  Size                 Notes

Density                        8 g / cm3

Hardness                     29 HRC

Hardness (annealed)   82 HRB           1100 oC, rapid cooling 

 

Mechanical Properties 

Description                  Size                Notes

Modulus                      197 GPa

Elongation% (break)   70%                to 50 mm

Rate Break                  86 GPa 

 

Main Features  

In the stainless steel DIN 1.4301 ambient temperature having excellent resistance to oxidation even in the presence of strong acids such as nitric acid. The material exhibits excellent resistance to alkaline solutions and to organic and inorganic salt solutions. Generally the material provides excellent resistance to oxidation in the environment and in an environment of intense salt spray (ships etc.) presents virtual oxidation spots avoided by cleaning. 

 

Specifications of stainless steel AISI 316 

Material Description                           Stainless steel DIN 1.4401

Specifications in DIN                         DIN 1.4401, DIN 2463, DIN 17451

Corresponding specifications              AISI 316, UNS S31600 

 

Composition% by weight 

Element           %         Notes

C                     max 0.08

Cr                    Max 18

Ni                    10 – 14

Fe                    62

Mn                   max 2

P                      max 0.045

S                      max 0.03

Si                     max 1

Mo                   max 3 

 

Physical Properties 

Description                  Size                 Notes

Density                        8 g / cm3

Hardness                     95 HRB

Hardness (annealed)   82 HRB          1100 oC, rapid cooling 

 

Mechanical Properties 

Description                  Size                 Notes

Modulus                      193 GPa

Elongation% (break)   50% to 50 mm

Rate Break                  86 GPa 

 

Main Features 

 

 In the stainless steel DIN 1.4401 ambient temperature having excellent resistance to oxidation even in the presence of strong acids such as nitric acid. The material exhibits excellent resistance to alkaline solutions and to organic and inorganic salt solutions. Generally the material provides excellent resistance to oxidation in the environment and in a salt spray environment of intense (ships etc.).