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BS 6323-4 DOM Seamless Steel Tube For Machinery Industry Auto Parts

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BS 6323-4 DOM Seamless Steel Tube For Machinery Industry Auto Parts

Country/Region	china
City & Province	ningbo zhejiang
Categories	Metal Casting Machinery

Product Details

Products Description:
BS 6323-4 Seamless Cold Drawn Steel Pipes DOM Steel Tube
China DOM Steel Tubes supplier & manufacturer, offer low price, high quality engineering Special Steel,DOM Seamless Steel Tubes, DOM Steel Pipe,Oval steel tube etc.
Steel Grade/Steel Material:

Designation	Chemical composition(ladle analysis)
Designation	C %	Si %	Mn %	P(Max)	S(Max) %	Cr %	Mo %
CFS 3	0.20 max	0.35 max	0.90 max	0.05	0.05	-	-
CFS 3A a	0.20 max	0.10 to 0.35	0.60 to 1.00	0.05	0.05	-	-
CFS 4	0.25 max	0.35 max	1.20 max	0.05	0.05	-	-
CFS 5 b	0.23 max	0.50 max	1.50 max	0.05	0.05	-	-
CFS 6	0.30 to 0.40	0.35 max	0.50 to 0.90	0.05	0.05	-	-
CFS 7	0.20 to 0.30	0.35 max	1.20 to 1.50	0.05	0.05	-	-
CFS 8 c	0.40 to 0.55	0.35 max	0.50 to 0.90	0.05	0.05	-	-
CFS 9	0.29 max	0.35 max	1.50 max	0.05	0.05	-	0.15 to 0.25
CFS 10	0.26 max	0.35 max	0.80 max	0.05	0.05	0.80 to 1.20	0.15 to 0.30
CFS 11	0.45 max	0.35 max	1.00 max	0.05	0.05	0.80 to 1.20	0.15 to 0.30

Designation	Mechanical properties and delivery condition
	BK d (cold finished/hard)			BKW d (cold finished/soft)			GBK and GZF (annealed)			NBK and NZF (normalized)
	Re min N/mm2	Rm min N/mm2	A min %	Re min N/mm2	Rm min N/mm2	A min %	Re min N/mm2	Rm min N/mm2	A min %	Re min N/mm2	Rm min N/mm2	A min %
CFS 3	360	450	6	280	400	9	170	340	26	215	360	24
CFS 3A a	360	450	6	280	400	9	170	340	26	215	360	24
CFS 4	415	520	5	315	450	8	200	400	24	235	410	22
CFS 5 b	480	600	4	385	550	6	-	-	-	340	490	20
CFS 6	470	590	5	350	540	7	300	440	22	280	460	21
CFS 7	560	700	4	460	650	7	-	-	-	-	-	-
CFS 8 c	575	720	4	470	670	6	300	510	20	340	540	18
CFS 9	575	720	4	470	670	6	-	-	-	-	-	-
CFS 10	575	720	4	470	670	6	-	-	-	-	-	-
CFS 11	575	720	4	-	670	6	-	-	-	-	-	-
Note: Welding of tubes of grades 3, 3A, 4 and 5 does not require special techniques but care should be taken and welding carried out in accordance with the guidance given in the appropriate British Standard for welding, e.g. BS 5135. The welding of other grades shown may require special technique. a Grade 3A shall be suitable for case hardening purposes. b Grain refining elements may be added at the option of the manufactures. c Steels within the limits shown, but in accordance with the chemical composition of BS 970-1, may be supplied if agreed at the time of order or enquiry. d If tubes in the BK and GKW condition are subsequently welded, braced or heated the mechanical properties in the heat affected zone may be reduced to those given for the delivery condition GBK or NBK.

Delivery Condition:
BK, BKW, GBK, GZF, NBK, NZF

Size Range:
OD: 5.0-220mm
WT:0.5-25mm
Length: max 7000mm

DOM Steel Tube Characteristic:
Good concentricity
Good OD and ID tolerance
High Precision
Stable quality
Smooth Roughness
TORICH QUALITY ASSURANCE

Production Processs:
Seamless tube and Cold Drawing or Cold Rolling Production

Raw MaterialSteel Tube:

Production Line Cold Drawing:
DOM Steel Tubes,Welded Steel Tube,DOM Seamless Steel Tubes,DOM Steel Pipe,Oval steel tube

Quality Inspection for Dimension:

Eddy Current Test and Ultrasonic Test:

Quality Inspection in lab:

Packing:

BS 6323-4 Seamless Cold Drawn Steel Pipes DOM Steel Tube