The quality of SA106 grade B seamless steel pipe shall not only meet the corresponding standard requirements, but also be higher or stricter than the product characteristics specified in the standard, including chemical composition, microstructure, physical properties, chemical properties and other requirements (price, packaging, delivery time, etc.) of SA106 grade B seamless steel pipe buyer.

On the basis of the quality of SA106 grade B seamless steel pipe conforming to the corresponding standards, some buyers will put forward specific requirements according to their own use needs. In our seamless steel pipe industry, it is called a technical agreement, that is, some specific factors should be produced and equipped according to the buyer's requirements. These requirements may be the control of the chemical element content of the SA106 grade B seamless steel pipe, the limitation of certain properties of the SA106 grade B seamless steel pipe, and the length control, etc.