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Introduction Of Several Stainless Steel Properties

Nov. 26, 2019

Stainless steel is a type of steel. Steel refers to those containing less than 2% carbon (C), which is called steel, and more than 2% is iron. Adding chromium (Cr), nickel (Ni), manganese (Mn), silicon (Si), titanium (Ti), molybdenum (Mo) and other alloy elements during the smelting process of the steel improves the performance of the steel and makes the steel corrosion resistant is what we often say about stainless steel.

What exactly are "steel" and "iron", what are their characteristics, and what is the relationship? How do we usually say 304, 304L, 316, 316L, and what are the differences between them? The following 304 Stainless Steel Plate Supplier will come to tell you.

Steel is a material with iron as the main element, carbon content generally below 2%, and other elements. Iron is a metal element with atomic number 26. Iron materials have strong ferromagnetism, and have good plasticity and thermal conductivity. Stainless steel is resistant to weakly corrosive media such as air, steam, and water, or stainless steel. The commonly used steel types are 304, 304L, 316, and 316L, which are 300 series steels of austenitic stainless steel.

Why do stainless steels have different grades?

During the smelting process of stainless steel, due to the different types of alloying elements, the amount of different types is different. Its characteristics are also different. In order to distinguish them, different steel grades are crowned. The following are the different alloy grades of common stainless steel for decoration.

1, 304 stainless steel

304 stainless steel is the most common steel type. As a widely used steel, it has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; good hot workability such as stamping and bending, no heat treatment and hardening (non-magnetic , Then use the temperature -196 ℃ ~ 800 ℃). The scope of application mainly includes household items such as tableware, cabinets, indoor pipelines, water heaters, boilers, bathtubs, etc., auto accessories, Medical appliances, etc.

2. 304L stainless steel (L is low carbon)

As a low-carbon 304 steel, under normal conditions, its corrosion resistance is similar to that of 304, but after welding or stress relief, its resistance to grain boundary corrosion is excellent; it can also maintain good performance without heat treatment Corrosion resistance, use temperature -196 ℃ ~ 800 ℃. It is used in chemical, coal, and petroleum industry outdoor and open-air machines with high requirements on the resistance to grain boundary corrosion, heat-resistant parts for building materials, and parts with difficult heat treatment. Products made of this type of stainless steel include 304L Stainless Steel Plate.

 316 Stainless Steel Sheet

 316 Stainless Steel Sheet

3.316 stainless steel

Because 316 stainless steel is added with molybdenum, its corrosion resistance, atmospheric corrosion resistance and high-temperature strength are particularly good, which can be used under harsh conditions; excellent work hardening (non-magnetic). Mainly used in seawater equipment, chemical, dye, papermaking, oxalic acid, fertilizer and other production equipment; photographs, food industry, facilities in coastal areas, ropes, CD rods, bolts, nuts.

4.316L stainless steel

As a low carbon series of 316 steel, in addition to the same characteristics as 316 steel, its resistance to grain boundary corrosion is excellent. It is mainly applicable to products with special requirements for anti-corrosion of grain boundaries. Common products are 316 Stainless Steel Sheet and so on.

The above are the performance characteristics and application scope of several common stainless steel models. Hope to help everyone.

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