Shandong Pengrui Rock Drilling Technology Co., Ltd.-Hollow steel

In the shaped tube is generally based on the cross-section, the overall shape to distinguish, generally can be divided into: oval shaped shaped steel pipe, triangular shaped steel pipe, hexagonal shaped shaped steel pipe, rhombic shaped shaped steel pipe, stainless steel patterned pipe, stainless steel U-shaped steel pipe, D-type pipe, stainless steel bends and so on.

In the shaped tube is generally based on the cross-section, the overall shape to distinguish, generally can be divided into: oval shaped shaped steel pipe, triangular shaped steel pipe, hexagonal shaped shaped steel pipe, rhombic shaped shaped steel pipe, stainless steel patterned pipe, stainless steel U-shaped steel pipe, D-type pipe, stainless steel bends and so on, stainless steel bent pipes, S-shaped bent pipes, octagonal steel pipes, semi-circular steel pipes, hollow steel manufacturers, unequal-sided hexagonal steel pipes, five-petal plum blossom shaped steel pipes, double-convex steel pipes, and double-concave steel pipes.

Stainless steel trap pipes, melon-shaped steel pipes, conical steel pipes, corrugated steel pipes, etc.

Hollow steel for drill rods, referred to as "drill steel", hollow steel wholesale. The cross-section is mainly hexagonal and circular, therefore, this article takes the regular hexagonal hollow steel for drill rods as the research object. Currently, the main method for producing drill steel in China is the hot-piercing and hot-drawing method. Compared with the hot-piercing and hot-drawing method, the hot-piercing and hot-rolling method produces hollow steel with a longer lifespan and higher production efficiency, Leshan hollow steel, therefore, it has broad development prospects.

Hollow steel (also known as drill steel) is a steel material used to make mountain-opening rock drilling tools. Hollow steel and drill bit products are high-tech, high-value-added steel products with good economic benefits and good development prospects. In order to cultivate the leading and characteristic products and improve the product structure, under the guidance of domestic drill steel, it was decided to produce B22 hollow drill steel.