① Delivery status
Refers to the final plastic deformation of the delivery product or the state of the final heat treatment. It is said that the heat treatment is not heat-treated or it is called hot-rolled or cold-drawn (rolled) state or manufacturing state. The heat treatment is heat-treated or heat-treated, normalized, status. When ordering, the delivery status should be indicated in the contract.
② Deliver by actual weight or according to the theoretical weight
Actual weight - when delivered, the weight of the product is delivered by weight (weighing)
Theoretical weight - When delivered, the weight of the product is calculated from the nominal size of the steel.
③ Vertical and horizontal
Standard refers to the vertical direction is the direction of processing (that is, along the direction of processing); horizontal refers to the vertical direction with the processing (the direction of the steel pipe).
In the case of an impact test, the fracture of the longitudinal specimen is perpendicular to the machining direction. So that transverse fracture; transverse specimen fracture and processing direction parallel, so that the vertical fracture.
