JIS G3445 Cold Drawn Steel Pipe for Automobile and Motorcycle

Model NO.: HTSP Technique: Cold Drawn Surface Treatment: Oiled Section Shape: Round Specification: 6-68MM HS Code: 7304391000 Type: Seamless Material: Carbon Steel Usage: Hydraulic/Automobile Pipe Trademark: HTSP Origin: China Product Description JIS G3445 STKM11A/12A/12C Precision Steel Tube, Cold Drawn Seamless Tube

Material: 
STKM 11A, STKM 12A, STKM13A
SAE1010, SAE1020, SAE1045

OD: 4-60mm
Wall thickness: 0.5-7mm

Length: 3 - 10 m, approximate length with tolerance +/-10 mm
 
Manufacture process:
Synopsis of Process Routing: Quality Carbon steel - Cold Drawn - Heat Treatment Without Oxidization (NBK Status) - Nondestructive Testing- Flushing The Internal Hole With Special Equipment Under The High Pressure -Dealing With Antirust Oil On Surface - Plastic Capping On Both Ends.


Applications:
Precision tubes are used in hydraulic system,automobile,mechanical parts and in the occasion where the high precision,brightness,cleanness and mechanical properties of the tube are required.
 

Steel grades for carbon Precision steel tube

Standard	Material
EN10305-1	E215, E235, E255, E355,C45E, 30GrMo
DIN2391	ST35, ST45, ST52, ST37.4
BS6323/4	CFS3,CFS4,CFS5,CFS8
ASTMA519	SAE1010,SAE1020,SAE1045
JISG3445	STKM11A,STKM13A
SAEJ524	SAE1010

 
 Tolerance Table Of Steel Tube

NAME	SCOPE(mm)	GB (mm)	DIN (mm)	Enterprise control(mm)	Special high-precision(mm)
Out Diameter	4-30	±0.1	±0.08	±0.05	±0.03
	31-40	±0.15	±0.15	±0.05	±0.03
	41-50	±0.20	±0.20	±0.08	±0.03
	51-60	±0.25	±0.25	±0.08	±0.03
Wall thickness	0.5-7	±10%,Min±0.12	±10%	±10%,Min±0.05	±10%,Min±0.03

 
Delivery condition and heat treatment processing of carbon Precision steel tube

Delivery Condition	Heat treatment process
+C	Cold drawn/hard.After the last cold forming,no heat treatment.
+LC	Cold drawn/soft.After the last heat treatment follows the cold drawing there is a light finishing pass.
+SR	Cold drawn and stress relieved annealed. After the final cold drawing process the tubes are stress relieved annealed in a controlled atmosphere.
+A	After the final cold drawing process the tubes are stress relieved annealed in a controlled atmosphere.
+N	Normalized. After the last cold drawing process the tubes are annealed in a controlled atmosphere.

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Product Categories : Precision Steel Pipes > Automobile Steel Pipe