The Carbon steel tube billets (YB/T5222-1993) are made of high quality carbon steel as raw material, after smelting by converter or electric furnace, continuous casting, refining and deoxidation, rolling or hammering, heat treatment and finishing.
The carbon steel tube billets (YB/T5222-1993) are divided into two categories: cold-rolled and hot-rolled. Cold-rolled steel tube billets are made by hot rolling the flat steel in cold rolling workshop, then cold drawing it in cold drawing machine to get the tube billet. Hot-rolled steel tube billets are made of ingot or billet heated in rolling mill, then pierced with piercer and stretched with stretch reducing mill to finish rolling tube billet.
The carbon steel tube billets (YB/T5222-1993) have the following characteristics: 1. The appearance of cold rolled steel tube billet is smooth and the surface quality is better. 2. The strength and hardness of cold rolled steel tube billet are higher than that of hot rolled steel tube billet . 3. The dimensional accuracy and surface quality of cold rolled steel tube billets are higher than that of hot rolled steel tube billets. 4. The cold rolled steel tube billet has better comprehensive mechanical properties, low temperature toughness, plasticity and good weldability. 5.Structural and pressure container steel pipes are easy to form and significantly reduce machining passes.
The carbon steel tube billets (YB/T5222-1993) are mainly used for the production of seamless steel and hot-rolled steel tubes, precision steel pipes and cold drawn tubes, etc., in the fields of machine-building, petroleum, chemical industry and transportation.
In order to ensure the quality and usability of carbon steel tube billets (YB/T5222-1993), the inspection and acceptance of finished products should meet the standards of the Peoples Republic of China. The standard requirements mainly include chemical composition requirements, tensile properties, mechanical properties, process performance, impact properties and non-destructive testing. The latter includes ultrasonic testing, magnetic particle testing, penetrant testing, visual inspection and instrument measurement methods such as eddy current.
In conclusion, carbon steel tube billets (YB/T5222-1993) are of good quality and are widely used in various fields. The quality of the products should meet the requirements of the standard. Before using the product, it is necessary to perform necessary inspections and acceptances to ensure that the product meets the requirements.
