All About Steel 235

2024 Author: Howard Calhoun | [email protected]. Last modified: 2023-12-17 10:16

Today, the industrial steel market is very rich. And in this regard, it is very difficult to choose exactly the steel grade that is suitable for a particular project. You have to delve into the topic, study the characteristics, consider several options at once, hoping to find the right material.

In this article, we will make life a little easier for those who are looking for steel products for their projects. We will talk about steel 235, very common and revered in the field of metal structures. We will try to describe as informatively as possible all the most important aspects related to this steel grade.

GOST

Absolutely every steel grade has a document that clearly indicates its chemical and physical characteristics, as well as the scope and requirements for operation. Steel 235 was no exception. GOST 27772 provides the full amount of information about this grade, but first of all, we are only interested in some of it.

In the composition of any of the steels, regardless of its purpose, there will be various chemical elements designed toimprove the structure of the alloy and endow the resulting steel with any properties, whether it be strength, ductility, resistance to external influences and much more.

Familiarizing yourself with the composition of the alloying elements of steel 235, you can determine its physical, as well as some chemical characteristics, with a small margin of error.

The 235th is characterized by the following composition:

• 0, 2% carbon.
• 0.6% manganese.
• 0.05% silicon.
• 0, 3% chromium.
• 0, 3% nickel.
• 0, 3% copper.

From the negative impurities, a small content of sulfur can be distinguished - 0.05%, phosphorus - 0.04% and 0.08% arsenic.

As you can see, the chemical composition of 235 steel does not have outstanding properties. However, it is worth assuring you that this is not necessary in the field of its application and, on the contrary, a more pliable material will be valued more.

Characteristics of steel 235

The main application of this steel is the construction of steel structures. That is why it is subject to completely different, specific requirements. For such structural steel, not strength is much more important, but ductility, resistance to stress and relative softness, which greatly simplifies its processing if necessary. More specifically, for steel 235, a characteristic feature is the yield strength in the range from 190 to 230 megapascals with an elongation at break in the region of 22%.

The next important indicator for any steel directly intended for use in various kindsstructures, is its weldability. The better and easier the welding process is, the better it is, respectively. And steel 235 is ready to please craftsmen with its unlimited weldability. This means that two parts can be welded together without preheating and then tempering to relieve stress in the metal. At the same time, the seam itself can be applied by any of the methods available to the master, and the quality of the connection will remain unchanged.

Analogues

Fortunately for many, the building steel market is not so poor for steels similar in their properties and compositions. Grade 235 also has similar “twin brothers”. The closest analogue is the well-known structural steel St18Kp, VSt3Kp2 or simple St3Kp2.

Be sure: each of these grades is quite common and is sure to be available in large quantities in any enterprise engaged in the manufacture and sale of steel products.

Epilogue

At the end of this article, I would like to summarize all of the above. Steel 235 is perhaps one of the best structural steels for welded structures. It is easy to process, welded simply and reliably, and structures can withstand high loads for a long time without breaking.