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BS6323-3 Hot Hinished Seamless Steel Pipes Automotive tubing

Standard: BS6323-3 Seamless and Welded steel tubes for automobile, mechanical and general engineering purposes

Part 3: Specific requirements for hot finished seamless steel tubes

Application: for Auto industry / for machinery use/mechanical and general engineering purposes Size range: O.D.:6-280mm W.T.:1-30mm L:max12000mm

Design ation	Chemical Compositions( ladle analysis)					Mechanical properties
	C	Si	Mn	P	S	Re min.	Rm min.	A min.
		max.		max.	max.	Re min.	Rm min.	A min.
	%	%	%	%	%	N/mm2	N/mm2	%
HFS 3	0.20max.	0.35	0.90max.	0.050	0.050	215	360	24
HFS 4	0.25max.	0.35	1.20max.	0.050	0.050	235	410	22
HFS5ab	0.23max.	0.50	1.50max.	0.050	0.050	340	490	20
HFS 8	0.40 to 0.55	0.35	0.50 to0.90	0.050	0.050	340	540	18

NOTE:Except for grade 8,welding of tubes of these grades does not require special techniques but care should be taken and welding should be carried out in accordance with the guidance given in the appropriate British Standards for welding,e.g. BS 5135.
Welding of grade 8 may require special techniques aGrain refining elements may be added to this grade at the option of the manufacturer.
For thicknesses in excess of 30 mm it is permissible for the minimum yield strength to be reduce by 5 N/mm2"

Outside diameter	Thicknesses
Outside diameter	Minimum thickness	Thicknesses in common usage						maximum thickness
mm	mm	mm	mm	mm	mm	mm	mm	mm
33.7	3.2	3.2	4.0	5.0				6.3
38.0	3.2	3.2	4.0	5.0	5.6			6.3
42.4	3.2	3.2	4.0	5.6				7.1
48.3	3.2	3.2	4.0	5.0	5.6			7.1
60.3	3.2	4.5	5.0	5.6	6.3			11
76.1	3.2	4.5	5.6	6.3				12.5
88.9	4.0	4.5	5.0	5.6	6.3			16
101.6	4.5	5.0	5.6	6.3				16
114.3	4.5	5.0	5.6	6.3	8.0			28
127.0	4.5	5.0	5.6	6.3	8.0			28
139.7	4.5	5.0	5.6	6.3	8.0	10.0		32
168.3	5.0	5.0	5.6	6.3	7.1	8.0	10.0	40
193.7	5.0	5.6	6.3	8.0	10.0	12.5		45
219.1	5.0	5.6	6.3	8.0	10.0	12.5		55
244.5	6.3	6.3	7.1	8.0	10.0	12.5		60
273	6.3	6.3	7.1	8.0	10.0	12.5		70
323.9	6.3	6.3	7.1	8.0	10.0	12.5		80
355.6	8.0	8.0	10.0	12.5				90
406.4	8.0	10.0	12.5					100
457	9.5	10.0	12.5					100

NOTE Outside diameters and thicknesses other than those listed are available by agreement between purchaser and manufacturer.For sectional properties including mass per unit length,see appendix B of BS 6323-1:1982

Note: Special steel grade is also available, according to customer request.

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Categories	Precision Seamless Steel Tubes
Place of Origin:	China
Brand Name:	Torich
Certification:	ISO9001，ISO14001,TS16949,CCS
Model Number:	BS6323-3
MOQ:	5 tons
Price:	1200
Packaging Details:	In Hexagonal Bundles
Delivery Time:	30-60 days
Payment Terms:	T/T,L/C
Supply Ability:	50000 TONS PER YEAR
Shape:	Round