What is the Best Stainless Steel Grade for Casting Progress?
Aug 28, 2024
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What is the Best Stainless Steel Grade for Casting Progress?
Let's to be simple:The best grades for casting are:
Stainless steel 304 & Stainless steel 316
Note that these two types of metals all belong to class 300 series of the stainless steel.
Meaning that they are chromium-nickel alloys.Let's have a look at each.
a) Stainless Steel 304
This grade belongs to austenitic stainless-steel group.What is austenitic stainless steel?
Well, this group consist of themicrostructured andface-centered cubically crystal structured stainless steel.
Incidentally,this is the largest category of stainless steels.They actually account for 75 % of all the stainless steel.
SS304 is also commonly referred to as group 18/8. Why? Because it comprises of chromium and nickel as the major non-ironic contents of about 18%and 8 % composition respectively. Some notable features of this grade are as follows: It is highly resistant to corrosion resulting from various environmental or atmospheric conditions. As a result, it's able to withstand most of the oxidizing agents such as acidic solutions in the environment. However, it is worth noting that, stainless steel 304 is susceptible to corrosion when exposed to some extreme conditions.
Applications of the Stainless Steel 304
This metal is widely used for the manufacture of:
I. Household goods – majorly kitchen appliances and food processing equipment. This is due to the fact that this metal is durable and can as well be sanitized.
II. Industrial commodities – for example, machine parts, doors etc.
b) Stainless Steel 316
This type of metal is the most commonly available form of stainless steel after the 304 type.
Coincidentally, 304 and 316 possess most similar physical and mechanical properties.
The major difference as earlier mentioned lies in the possession of molybdenum.
The stainless steel 316 has got about 3 % molybdenum.
Just like 304, stainless steel 316 also has a distinct variety of different types including 316 L, F and H.
Applications of stainless steel 316
I. Chemical processing industrial applications – this is as a result of its resistivity and suitability for use in acidic conditions.
II. Manufacture of medical-surgical equipment in pharmaceuticals – this is so due to non-reactive nature of the metal.
III. Manufacture of heat exchangers, jet engines parts and pump parts.
After all,do you think it is easy to spot the differences between SS316 and SS304?
Compare the 2 grades steel for simple looking:
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