Seamless Cold Drawn Cold Rolled Precision Steel Tubes and Pipes

Product Name	Standard	Grade	Size Range O.D. mm	Usage
Seamless Cold Drawn Precision Tubes	JIS G3445	STKM 11A, STKM 12A, STKM 12B, STKM 12C, STKM 13A, STKM 13B, STKM 13C, STKM 15A, STKM 15C, STKM 17A, STKM 17C, STKM 18A	6.00 to 88.90	Mechanical and Automobile Precision Tubes
	DIN2391	ST35, ST45, ST52	6.00 to 76.00	Seamless Precision Tubes
	ASME/ ASTM SA/A519	SAE1010, SAE1020, SAE1025, SAE1026, SAE1035, SAE1045, SAE4130	6.00 to 340.00	Mechanical Precision Tubes
	EN10305-1	E215, E235, E335	6.00 to 340.00	Hydraulic Pressure Equipment
	ISO8535-1	ST35, ST37, ST52	6.00 to 16.00	High Precision High Pressure Fuel Pipes
Cold Drawn Welded Precision Tubes	ASTM A513	MT1010, 1015, 1020	21.70 to 90.00	Automobile Shock Absorber Cylinder, Front and Rear Axle Structural Purpose, Director Tubes, Engine Hydraulic Tubes
	EN10305-2	E215, E235, E335	10.00 to 90.00
	DIN2393	S215, S235, S355	10.00 to 90.00
	DIN2394	S215, S235, S355	10.00 to 90.00

  Precision Cylinder Tubes, Honed Tubes.   Size: Outside Diameter: 6mm – 340mm, Wall Thickness: 1mm – 50mm   Standard: DIN2391, DIN2394, ASTM A519, JIS G3445 STKM   Customer benefits: High dimensional accuracy for inside and outside diameters Extremely limited wall thickness tolerances Reduced eccentricity Smooth drawn surface Increased strength values due to cold forming Tightly staggered range of dimensions Customized heat treatment   Application: used for Air Cylinder and Oil Cylinder, Oil Inlet Tubes and Gas Spring Tubes on Automobile, Bushing Tubes. Seamless cold drawn cold rolled precision steel tubes and pipes are widely used for machine structural purpose, automobile, and hydraulic pressure equipment.   We can supply cold drawn cold rolled precision steel tubes and pipes according to Standard DIN2391, DIN2392, DIN2393, EN10305, JIS G3445, ASTM A519, and ASTM A513. We are familiar with almost all precision tubes standards. Honing tubes for cylinder are also our main products. Standards include DIN2391 ST52 and ASTM A519 SAE1020.