A Stainless Steel square bar is the solid rod which has the cross-section of a Carbon Steel square and a Square bar is the rod which has the cross section of a circle. In other words, draw a Alloy teel solid square and extrude it up to some particular length. The resultant rod, can be assumed as a Alloy Steel square bar. In the same way, draw a circle and extrude it. The resulting rod can be assumed as a square bar.

Steel Hollow Square Bar is the most versatile and most widely used stainless steel, available in a wider range of products, forms and finishes than any other. It has excellent forming and welding characteristics. The balanced austenitic structure of Mild Steel Square Bar enables it to be severely deep drawn without intermediate annealing, which has made this grade dominant in the manufacture of drawn stainless parts such as sinks, hollow-ware and saucepans. For these applications it is common to use special "304DDQ" (Deep Drawing Quality) variants. Duplex Steel Square Bar is readily brake or roll formed into a variety of components for applications in the industrial, architectural, and transportation fields

The important thing is that your customer will not accept the rolled bar and wants a Alloy Steel forged bar. Why is really not the issue. Most steel mills will be specific that their product is a "rolled bar". You will probably need to find an open die forging operation to obtain a forged bar. You can google Scot Forge for a start.

Depending on the size of the Steel forged bar , there are some rolled bars produced by continuous casting mills that may have very little rolling/forging reduction, which can have a negative effect on the mechanical properties. Generally, this is controlled by specifying the amount of reduction required, but perhaps your customer has other concerns as well.In general, forging produces more hot work through the thickness of the bar that rolling will. At least, many will believe it does.

A Stainless Steel square bar is the solid rod which has the cross-section of a Carbon Steel square and a Square bar is the rod which has the cross section of a circle. In other words, draw a Alloy teel solid square and extrude it up to some particular length. The resultant rod, can be assumed as a Alloy Steel square bar. In the same way, draw a circle and extrude it. The resulting rod can be assumed as a square bar.

Steel Hollow Square Bar is the most versatile and most widely used stainless steel, available in a wider range of products, forms and finishes than any other. It has excellent forming and welding characteristics. The balanced austenitic structure of Mild Steel Square Bar enables it to be severely deep drawn without intermediate annealing, which has made this grade dominant in the manufacture of drawn stainless parts such as sinks, hollow-ware and saucepans. For these applications it is common to use special "304DDQ" (Deep Drawing Quality) variants. Duplex Steel Square Bar is readily brake or roll formed into a variety of components for applications in the industrial, architectural, and transportation fields

The important thing is that your customer will not accept the rolled bar and wants a Alloy Steel forged bar. Why is really not the issue. Most steel mills will be specific that their product is a "rolled bar". You will probably need to find an open die forging operation to obtain a forged bar. You can google Scot Forge for a start.

Depending on the size of the Steel forged bar , there are some rolled bars produced by continuous casting mills that may have very little rolling/forging reduction, which can have a negative effect on the mechanical properties. Generally, this is controlled by specifying the amount of reduction required, but perhaps your customer has other concerns as well.In general, forging produces more hot work through the thickness of the bar that rolling will. At least, many will believe it does.