Steel in the process industry

Steel is an extremely important material in the process industry, and the AISI/DIN steel standards are crucial for classification and application. 

AISI and DIN are both organizations that develop standards for different types of steel, including stainless steel, which is our area of expertise.  

These standards ensure easy identification of steel and allow you to choose the most appropriate material for your specific applications.

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What are AISI/DIN steel standards?

AISI stands for American Iron and Steel Institute, while DIN stands for Deutsches Institut für Normung. 

Both organizations have developed standards for steel that are widely recognized and used globally.

These standards define various mechanical and chemical properties of different types of steel used for a wide range of applications. 

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AISI 316 and 316L: What's the difference?

Many of our products consist of AISI 316 and 316L, including our hose couplings for various industrial hoses. 

Both AISI 316 and 316L are known for their superior corrosion resistance, especially against chloride-containing media, making them ideal for many industrial processes. 

AISI 316L is a low-carbon version of 316 and is therefore more resistant to intergranular corrosion. This makes the material particularly suitable for applications that require a high degree of corrosion resistance. 

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Steel standards in the food industry

Steel plays a crucial role in the food industry, where hygiene and durability requirements are high. 

AISI steels, such as AISI 304 and AISI 316, are known for their rust resistance and ability to resist corrosion, making them ideal for manufacturing food contact equipment and utensils. 

DIN standards such as DIN 1.4301 and DIN 1.4401 are also suitable for the food industry and are often used to manufacture tanks, pipes and valves. 

The choice between AISI and DIN steel often depends on specific application requirements and regional preferences.

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AISI/DIN comparison

The steel standards AISI and DIN represent equivalent designations for different stainless-steel grades. For example, AISI 302 corresponds to DIN 1.4310 and AISI 304 corresponds to DIN 1.4301. 

The table compares the different steel standards our products typically consist of at Alfotech. 

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