Bearing steel pipe refers to a seamless steel pipe that is hot-rolled or cold-rolled (cold drawn) for the manufacture of ordinary rolling bearing rings. The outer diameter of the steel pipe is 25-180 mm, and the wall thickness is 3.5-20 mm. There are two types of ordinary precision and higher precision. Bearing steel is the steel used to make balls, rollers and bearing rings. Bearings are subjected to great pressure and friction during work, so the bearing steel is required to have high and uniform hardness and wear resistance, as well as high elastic limit. The requirements for the uniformity of the chemical composition of the bearing steel, the content and distribution of non-metallic inclusions, and the distribution of carbides are very strict. It is one of the most stringent steel grades in all steel production.

Item	Bearing steel pipe
Standard	ASTM, DIN, ISO, EN, JIS, GB, etc.
Material	Q215 Q235 According to GB/T700;Q345 According to GB/T1591 Grade B,Grade C,Grade D,Grade 50 S185,S235JR,S235JO,E335,S355JR,S355J2 SS330,SS400,SPFC590 etc.
Size	Wall thickness: 3.5mm--20mm, or as required. Outer diameter: 25mm-180mm, or as required. Length: 1m-12m, or as required.
Surface	Lightly oiled, hot dip galvanized, electro-galvanized, black, bare, varnish coating/anti-rust oil, protective coating, etc.
Application	Boiler tubes, fluid tubes, hydraulic tubes, damping tubes, structural tubes, machinery and automotive tubes, etc.
Export to	America, Australia, Brazil, Canada, Peru, Iran, Italy, India, United Kingdom, Arab, etc.
Package	Standard export package, or as required.
Price term	EXW, FOB, CIF, CFR, CNF, etc.
Payment	T/T, L/C, Western Union, etc.
Certificates	ISO, SGS, BV.