What are Seamless Carbon Steel Tubes?

The production process of seamless carbon steel pipes includes hot rolling and cold rolling (drawing). The outer diameter of hot-rolled seamless pipes is generally greater than 32mm, and the wall thickness is 2.5-75mm, while the outer diameter of cold-rolled seamless steel pipes can reach 6mm and the wall thickness can reach 0.25mm. The dimensional accuracy of cold-rolled seamless steel pipes is higher than that of hot-rolled seamless pipes. In addition, the standards and specifications of seamless carbon steel pipes are diverse. According to different application scenarios and needs, you can choose the appropriate material and specifications.

Product Name	Standard	Grade	Size Range O.D. mm	Usage
Seamless Cold Drawn Low Carbon Steel Heat Exchanger and Condenser Tubes	ASME/ASTM SA/A179	SA/A179	19.05 to 88.90	Heat Exchanger and Condenser.
	BS3059 PART II	GR.360, GR.320	15.88 to 76.20
Seamless Carbon Steel Boiler Tubes for High-Pressure Service and Superheater Tubes	ASME/ASTM SA/A192	SA/A192	19.05 to 219.00	Wall Panel, Economizer, Re-heater, Superheater and Steam Pipeline of Boilers.
	ASME/ASTM A210	GR.A1, C	19.05 to 219.00
	DIN17175	ST35.8, ST45.8	19.05 to 340.00
Seamless Carbon and Alloy Steel Tubes for Low Temperature Service	ASME/ASTM SA/A334	GR.1, GR.6, GR.8	19.05 to 340.00	Conveying Water, Petroleum, Gas and Other Common Fluids.
Seamless Carbon and Alloy Steel Mechanical Tubing	ASME/ASTM A519	SAE1010,   SAE1020, SAE1025, SAE1026, SAE1035, SAE1045, SAE4130	6.00 to 340.00	Mechanical Structure, Hydraulic Pressure Equipment.
	ASTM A513	GR.A, GR.B,	6.00 to 340.00
	DIN2391	ST35, ST45, ST52	6.00 to 88.90
	JIS G3454	STPG370	10.00 to 219.00
Black Seamless Steel Pipes	ASME/ASTM  SA/A53	GR,A, GR.B, GR.C	21.30 to 610.00	Conveying Water, Pertoleum, Gas and Other Common Fluid.
	ASTM SA/A106	GR.B	21.30 to 610.00
	API 5L	GR.B	21.30 to 610.00
OCTG	API SPEC 5CT	J55, K55, L80, N80 P110, Q125	114.30 to 508.00	Tubes & Pipes for Petroleum and Natural Gas Industries.