Hot rolling is relative to cold rolling, cold rolling is rolling below the recrystallization temperature, and hot rolling is rolling above the recrystallization temperature. Hot-rolled seamless steel pipes are divided into general steel pipes, low- and medium-pressure boiler steel pipes, high-pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, geological steel pipes and other steel pipes.

Item	Hot roll seamless steel pipe
Standard	ASTM, DIN, ISO, EN, JIS, GB, etc.
Material	ASTM A106B、ASTM A53B、API 5L Gr.B、ST52、ST37、ST44 SAE1010/1020/1045、S45C/CK45、SCM435、AISI4130/4140 Q195 、 Q235A-B 、Q345A-E 、 20 # 、10 #、 16Mn 、 ASTM A36、ASTM A500 、 ASTM A53 、 ASTM 106 、 SS400、St52 、S235JR 、S355TRHetc.
Size	Wall thickness: 0.5mm-25mm, or as required. Outer diameter: 20mm-1200mm, 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	1. Buildings include: pipeline transportation at most, underground water extraction when building buildings, boiler hot water transportation, etc. 2. Mechanical processing, bearing sleeves, processing machinery accessories, etc. 3. Electrical: gas transmission, water power generation fluid pipeline. 4. Anti-static pipes for wind power plants, 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.