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BS6323-6 Cold Finished Electric Resistance Welded Steel Tubes for machinery use

Standard: BS6323-6 Seamless and Welded steel tubes for automobile,mechanical and general engineering purposes

Part 6: Specific requirements for cold finished electric resistance welded(including induction welded) steel tubes

Applications: for Auto industry / for machinery use/mechanical and general engineering purposes Size range: O.D.:6-350mm W.T.:1-35mm L:max12000mm

Chemical Compositions and mechanical properties
Design ation	Chemical Compositions( ladle analysis)					mechanical properties
Design ation	C	Si	Mn	P	S	BKc (cold finished/hard)			BKWc (cold finished/soft )			GBK and GZF (annealed)			NBK and NZF (normalized)
	max.	max.	max.	max.	max.	Re min.	Rm min.	A min.	Re min.	Rm min.	A min.	Re min.	Rm min.	A min.	Re min.	Rm min.	A min.
	%	%	%	%	%	N/m m2	N/m m2	%	N/m m2	N/m m2	%	N/m m2	N/m m2	%	N/m m2	N/m m2	%
CEW1a	0.13	__	0.60	0.050	0.050	320	400	6	245	350	10	150	270	27	155	280	25
CEW2a	0.16	__	0.70	0.050	0.050	355	420	6	260	370	10	160	300	27	195	320	25
CEW3a	0.20	0.35	0.90	0.050	0.050	360	450	6	280	400	9	170	340	26	215	360	24
CEW4b	0.25	0.35	1.20	0.050	0.050	415	520	5	315	450	8	200	400	24	235	410	22
CEW5b	0.23	0.50	1.50	0.050	0.050	480	600	4	385	550	6	__	__	__	340	490	20

Tolerance on diameter
diameter		Tolerance
diameter
over	Up to and including
over	Up to and including
mm	mm	mm
	30	±0.10
30	50	±0.15
50	70	±0.20
70	90	±0.25
90	110	±0.30
110	130	±0.35
130	160	±0.45
160	190	±0.55
190	220	±0.65
220	250	±0.75

Tolerance on specified cut lengths
Specified cut length		Tolerance
over	up to and including

mm	mm	mm
	500	+	2
		-	0
500	2000	+	3
		-	0
2000	5000	+	5
		-	0
5000	7000	+	10
		-	0
7000	__	by agreement
NOTE Closer tolerances may be obtained by agreement between the purchaser and manufacturer.

Distance between platens for flattening test
Designation	Distance between platens
	%
CEW 1	66
CEW 2	75
CEW 3	85
CEW 4	85
CEW 5	85

Minimun expansion for drift expanding test
Designation	Expansion minimun for tube thickness
	Up to and including 4mm	Over 4 mm up to and including 8 mm
	Up to and including 4mm	Over 4 mm up to and including 8 mm
	%	%
CEW 1	12	8
CEW 2	12	8
CEW 3	10	6
CEW 4	8	5
CEW 5	8	5

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

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BS6323-6 Cold Finished Electric Resistance Welded Steel Tubes for machinery use

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Categories	Precision Seamless Steel Tubes
Place of Origin:	China
Brand Name:	Torich
Certification:	ISO9001，ISO14001,TS16949
Model Number:	BS6323-6
MOQ:	5 tons
Price:	1200 USD/TONS
Packaging Details:	In bundles or as per requests
Delivery Time:	30-60 days
Payment Terms:	T/T,L/C
Supply Ability:	50000 TONS PER YEAR
Shape:	Round