16Mn Low Alloy Tube

16Mn Low Alloy Tube Supplier-GNEE

16Mn Low Alloy Tube

 

16Mn low alloy pipe is divided into 4 levels according to strength: 300, 350, 400 and 450MPa. Mainly include Q295, Q345, Q390, Q420 and Q460. : "Q" is the uppercase Chinese pinyin of the word "Qu" for yield. The following numbers are the minimum yield point (σs) value of the grade. The following symbols are based on the steel's impurity element (sulfur, phosphorus) content from high to high. to low and with changes in carbon and manganese elements, it is divided into four grades: A, B, C, and D.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The difference between 16Mn16Mn and Q345B:
Q345B seamless steel pipe is a low alloy steel pipe. Q345B low alloy steel pipe is one of the materials of seamless steel pipe. Q345B low alloy steel pipe is a kind of material in steel. In the past, the name of steel was 16Mn. The current name is: Q345B

 

Chemical composition of 16Mn low alloy tube:
C: 0.12~0.20; Mn: 1.20~1.60; Si: 0.20~0.55; Tensile strength: 470~660 N/mm2; Yield strength: 275~345 N/mm2; Elongation: 21%. The specific value depends on the thickness or diameter of the steel. The above data corresponds to the thickness or diameter of the steel: 16~100mm
16Mn alloy pipe standards: GB/T8163-2008 (for fluid transportation) GB6479-2000 (seamless steel pipe for high-pressure fertilizer equipment)