Q195, Q235 and Q345 are three different grades of Chinese carbon structural steel. Their yield strengths are 195MPa, 235MPa and 345MPa respectively.
Q195 straight seam pipe is a steel type widely used in manufacturing various structural parts and parts. Its yield strength is relatively low, but the cost is relatively economical.
Q235 ERW steel pipes are a higher grade of steel than Q195 with a yield strength of 235MPa and are commonly used for structural and engineering purposes. Due to its moderate strength and performance, Q235 is widely used in construction, bridges, vehicles, ships and other engineering fields.
Q345 ERW pipe is a high-strength steel with a yield strength as high as 345MPa. Due to its excellent strength and stability, Q345 is commonly used in construction projects and applications requiring higher strength, such as bridges, high-rise buildings and heavy equipment.

Q195/Q235/Q345 Straight seam welded pipe

Product standard test:

Gnee Steel Pipe Co., Ltd. is an industrial and trading company. We mainly produce and operate carbon steel pipes and alloy steel pipes. Our pipes include liquid delivery pipes, structural pipes, hydraulic strut pipes, boiler pipes and bearing pipes. We typically have over 5,000 tons of pipe in various sizes and standards. Our stock pipe sizes range from 20mm to 406mm outer diameter and 2mm to 70mm wall thickness.