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Precision Round Seamless 30mm Steel Tubes / Hot Finished Wel

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Torich International,.Ltd

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Product name	Precision Round Seamless 30mm Steel Tubes / Hot Finished Wel	Certification	-
Category	Steel Pipes	Ingredients	-
Keyword	precision steel pipe , welded steel pipe , round steel tubes , hot finished steel pipe	Unit Size	-
Brand name	Torich	Unit Weigh	-
origin	China	Stock	-
Supply type	-	HS code	-

Standard: BS6323-2 Seamless and welded steel tubes for Automobile, Mechanical and General Enginnering purposes

Part 2: Specific Requirements for Hot Finished Welded Steel Tubes

Applications: for Auto industry / for machinery use/mechanical and general engineering purposes

Size range: O.D.:6-350mm W.T.:1-30mm L:max12000mm

Design ation	Chemical Compositions( ladle analysis)					Mechanical properties
	Cmax.	Simax.	Mnmax.	Pmax.	Smax.	Remin.	Rmmin.	Amin.
	%	%	%	%	%	N/mm2	N/mm2	%
HFW 2	0.16a	~	0.70	0.050	0.050	195	320	25
HFW 3	0.20a	0.35	0.90	0.050	0.050	215	360	24
HFW 4	0.25	0.35	1.20	0.050	0.050	235	410	22
HFW 5b	0.23	0.35	1.50	0.050	0.050	340	490	20
NOTE 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 Standard for welding,e.g. BS 5135. aIf rimming or semi-killed steel is used for grade 2,the carbon content may be increased to 0.19%,and if used for grade 3,to 0.23%.bGrain refining elements may be added to this grade at the option of the manufacturer.

Dimensions of hot finished welded steel tubes
Dimensions of hot finished welded steel tubes
Outside diameter	Designation HFW 2 and 3			Designation HFW 4 and 5
Outside diameter	Thicknesses			Thicknesses
mm	mm	mm	mm	mm	mm	mm
21.3	2.0	2.6	3.2	3.2
26.9	2.3	2.6	3.2	3.2
33.7	2.6	3.2	4.0	2.6	3.2	4.0
42.4	2.6	3.2	4.0	2.6	3.2	4.0
48.3	2.9	3.2	4.0	3.2	4.0	5.0
60.3	2.9	3.6	4.5	3.2	4.0	5.0
76.1	3.2	3.6	4.5	3.2	4.0	5.0
88.9	3.2	4.0	5.0	3.2	4.0	5.0
114.3	3.6	4.5	5.4	3.6	5.0	6.3
139.7	6.3			6.3
NOTE For sectional properties including mass per unit length,see appendix B of BS 6323-1:1982

Distance between platens for flattening test
Distance between platens for flattening test
Designation	Distance between platens
	%
HFW 2	75
HFW 3	85
HFW 4	85
HFW 5	85

Torich International,.Ltd

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Company introduction: Torich Interational Co.,Ltd is a professional manufacturer and exporter of steel pipes materials. It is an international marketing and sales company specialized in steel tubes, which holds the factories of Seamless Steel Tubes with Carbon and Alloy Steel Grade, Welded Precision Steel Tubes，DOM Steel Tubes, Seamless & Welded Stainless Steel Tubes with Nickel and Alloy Steel Grade.
Our factory was established since 1997, with the name of Haiyan Sanxin Steel Pipe Co., Ltd. The factories’ technicians are of great engineering experience in steel pipe industry for more than 20 years, which are in great command of production technology for Cold Drawing and Cold Rolling. So we have strong technician team and manufacturing capability.