Q345B/16Mn seamless steel pipe
Q345B seamless steel pipe belongs to low alloy series,Q234B is the most common low alloy materials.Q345B seamless steel pipe used to be called:16Mn seamless steel pipe.
Q345 seamless steel pipe is a kind of steel pipe material.Q is the yield of this material,and then 345 means the yield of this material is around 345.As the thickness of the material increases,the yield value will decrease.According to the grade,it can be divided into Q345A,Q345B,Q345C,Q345D,Q345E.
Q345B/16Mn seamless steel pipes
The main features of Q345B/16Mn seamless steel pipe are:good comprehensive performance,low temperature performance,cold stamping performance,welding performance and cutting performance.Q345B/16Mn seamless steel pipe is mainly used in mines,transport,chemical and other machinery.
16,represented by the carbon content of this steel is about 0.16%.Mn is separately extracted because of the high content of manganese in the five elements (carbon C, silicon Si, manganese Mn, phosphorus P, sulfur S). About 1.20-1.60%.
According to the special requirements,the steel plate can be some special treatment: heat treatment and z-direction performance:
Heat treatment: controlled rolling, normalizing and so on.
Z direction performance: Z15, Z25, Z35
Chemical composition of Q345B/16Mn seamless steel pipe:
| C | Si | Mn | P | S | Ni | Cr | Cu | V | Nb |
| 0.12-0.20 | 0.20-0.60 | 1.00-1.60 | ≤0.040 | ≤0.040 | ≤0.30 | ≤0.30 | ≤0.20 | 0.02-0.15 | 0.015-0.06 |
Tensile strength: 470~660 n/m2;
Yield strength: 275~345 n/m2;
Elongation: 21%.
(The specific value should be based on the thickness or diameter of steel,the above data corresponding to the thickness or diameter of steel:16~100mm)
Haihao Group manufacture seamless steel pipes more than 30 years,the products materials contain Q345B/16Mn,ASTM A106 Gr B,ASTM A53,API 5L Gr B,ST42,ST52,S275JR,DIN1629,DIN17175 etc.If you are interested in seamless steel pipes,welcome to contact us:sales@haihaogroup.com