1. Pigging: The steel billet, typically a round ingot, is cleaned and inserted into a mandrel to facilitate the piercing process. This is known as pigging and is done to ensure the billet is centered and to remove any scale or contaminants.2. Piercing: The billet is pierced by a spinning mandrel, wh
1. Oil and Gas Transmission: ERW steel pipes are commonly used for oil and gas transmission pipelines. They are suitable for conveying various petroleum products, natural gas, and other fluids over long distances due to their high strength and resistance to corrosion.2. Pipeline Infrastructure: In t
1. Environment: Store the pipes in a dry, well-ventilated area away from moisture and corrosive elements. Exposure to water or chemicals can accelerate corrosion.2. Protection from Physical Damage: Ensure that the pipes are stored clear of any sharp objects or structures that could cause damage to t
Annealing:Annealing is a heat treatment process that involves heating the steel to a high temperature, holding it there for a specific period, and then slowly cooling it down. The purpose of annealing is to allow the crystal structure of the steel to relax and grow, which helps to reduce internal st
The condition of delivery for seamless steel tubes is typically specified by international standards such as ASTM (American Society for Testing and Materials), ASME (American Society of Mechanical Engineers), or API (American Petroleum Institute). The most common conditions of delivery for seamless
1. Heat treatment: It's essential to ensure that the equipment undergoes proper heat treatment to achieve the desired mechanical properties and dimensional accuracy. This may include annealing, quenching, and tempering depending on the application requirements.2. Precision components: The precision
1. Metalworking Process: During the manufacturing of seamless pipes, the metal is subjected to a process called extrusion or drawing. This involves forcing the metal through a die to achieve the desired diameter and wall thickness. The expansion process allows the metal to flow smoothly through the
1. The microstructure of the steel plate used for the blank is single-phase, and the hardness and strength are relatively high.2. The shape of the steel pipe is square, round or hexagonal, and its inner and outer diameters are the same.3. The processing technology of DSaw steel pipe is relatively co
1. High efficiency: ERW carbon steel pipe can be produced in large quantities and with high-speed production processes, making it a cost-effective option.2. Consistent quality: ERW welding provides a strong and consistent weld seam, resulting in a reliable and durable pipe that meets required specif
