What is the difference between mostly common steel material?

Carbon steel is used for normal pressure temperature applications. Alloy steel is used for high-pressure temperature applications. Stainless steel is used for corrosive applications. And nickel steel is used for a low-temperature application. Here I will show you the list of carbon steel, stainless steel, and alloy steel grade.

ASTM A106 seamless steel pipes

ASTM A106 seamless steel pipes

What is the difference between ASTM A106 Gr.A / Gr.B/ Gr.C.?

This is a very common question.The difference between Gr A, B &C indicates different % of carbon. A106 Gr A is having a 0.25% Carbon,Gr B is having a 0.30% and Gr C is having a 0.35% Carbon.Now,remember that this % of carbon will affect the strength and ductility of the material.

ASTM A312 TP304 welded steel pipes

ASTM A312 TP304 welded steel pipes

 

What is the difference between ASTM A312 TP 304, TP304H and TP 304L?

This is also a very similar question what you have learned earlier. The difference between 304, 304H and 304L is different % of carbon in these grades. 0.08% max for 304, 0.035% max for 304L, 0.04-0.1% for 304H.

What is low alloy steel and what is high alloy steel?

Sum of the percentage of alloying elements in the steel will decide whether steel is called low alloy or high alloy steel.

  • Steel is called Low alloy steel if the sum of total Alloying elements is < 5%
  • And if the sum of total Alloying elements is > 5% it is called High alloy steel.
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