What is DIN 17100 St44-3 carbon structural steel?

DIN 17100 St44-3 is a carbon structural steel defined according to the German standard DIN 17100-1980, which is a low-alloy high-strength structural steel plate.

DIN 17100 St44-3 steel plate features:

 

High strength and toughness: St44-3 steel plate has high strength and high toughness, and can withstand large loads and impacts.

 

Corrosion resistance: It has certain corrosion resistance and can maintain good stability under various environmental conditions.

 

Excellent processing performance: easy to weld and process, convenient for various forming and processing operations.

 

Chemical composition of DIN 17100 St44-3 steel plate:

 

Carbon content (C) : Maximum 0.20%

 

Silicon content (Si) : Maximum 0.55%

 

Manganese content (Mn) : The maximum is 1.60%

 

Phosphorus content (P) : The maximum is 0.04%

 

Sulfur content (S) : Maximum 0.04%

 

Mechanical properties of DIN 17100 St44-3 steel plate:

 

According to the different thickness of steel plate, the mechanical properties of St44-3 steel plate are different. For example, when the thickness of the steel plate is less than 3mm, the tensile strength range is 430~580Mpa, the yield point is ≥275Mpa, and the elongation or elongation after breaking is 12~18%. When the thickness of the steel plate is between 3mm and 16mm, the tensile strength range is 410~540Mpa, the yield point is ≥275Mpa, and the elongation or elongation after breaking is 20~22%.

 

Delivery status of DIN 17100 St44-3 steel plate:

 

St44-3 steel plate is delivered normalized by default. According to the different needs, it can also be normalized, tempering, modulation and other heat treatment. In addition, the thickness extension of St44-3 steel plate can be 'z15, z25, z35', and the thickness flaw detection can be '1 probe, 2 probe, 3 probe '.