Q345 Q235 Hot Rolled Seamless Steel Pipe API 5L 3-80mm

Manufactory Hot Rolled Alloy Carbon Round Steel Pipe Tube in China

Alloy Or Not: Non-Alloy

Special Pipe: API Pipe,OtherEMT Pipe,Thick Wall Pipe

Thickness: 3-80mm

Length: 12M,6m,6.4M

Grade: GOST

Tolerance ±15%, ±5%, ±1%, ±10%

Oiled or Non-oiled: Slightly Oiled

Delivery Time:10-15 days

Material: 10#20#45#15Mn20Mn.45Mn.30Mn2
 

Product Description

Advantages: It can destroy the casting structure of the ingot, refine the grain of the steel, and eliminate the defects of the microstructure, so that the steel structure is dense and the mechanical properties are improved. This improvement is mainly reflected in the rolling direction, so that the steel is no longer isotropic to a certain extent; the bubbles, cracks and porosity formed during casting can also be welded under the action of high temperature and pressure.

Seamless steel pipes are perforated from a whole round steel, and steel pipes without
welds on the surface are called seamless steel pipes. According to the production method, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, and top pipes. According to the cross-sectional shape, seamless steel pipes are divided into two types: round and special-shaped. Special-shaped pipes have square, oval, triangular, hexagonal, melon seed, star, and finned pipes. The maximum diameter is 900mm and the minimum diameter is 4mm. According to different uses, there are thick-walled seamless steel pipes and thin-walled seamless steel pipes. Seamless steel pipes are mainly used as petroleum geological drilling pipes, petrochemical cracking pipes, boiler pipes, bearing pipes, and high-precision structural steel pipes for automobiles, tractors, and aviation.

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