BS 6323 Carbon Steel Seamless And Welded Tubes

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BS 6323 Carbon Steel Seamless And Welded Tubes

Standard Overview:

BS 6323 is a British standard. It specifies the requirements for seamless and welded steel tubes primarily for mechanical, structural, and general engineering use. It covers different types of steel tubes such as cold drawn tubes, welded tubes and seamless tubes. Special emphasis is placed on cold worked seamless steel tubes.

Main Materials:

Carbon steel and low alloy steel.

Scope of Application:

BS 6323 steel tubes are widely used in general engineering fields such as automotive manufacturing, machinery and construction.

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BS 6323 Carbon Steel Specification

Standard	BS 6323
Application	Seamless and welded steel tubes for automobile,mechanical and general engineering propose.
Method of manufacturer	By seamless process and ERW
Delivery condition	Hot finished condition
Steel Grade	HFS3, HFS4, HFS5, HFS8
Pipe Ends	BE, PE, THREAD, GROOVED
Pipe surface	Bare, Vanishe, Galvanized, 3LPE, Oil
Required test	Flattening test, Bend test

Dimension

Dimensions of hot finished welded steel tubes
Outside diameter	Designation HFW 2 and 3Thickness			Designation HFW 4 and 5Thickness
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

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Chemical Requirement

Designation	Chemical compositions (ladle analysis)
Designation	C max.	Si max.	Mn max.	P max.	S max.
HFW 2	0.16%	% —	0.70%	0.05%	0.05%
HFW 3	0.2	0.35	0.9	0.05	0.05
HFW 4	0.25	0.35	1.2	0.05	0.05
HFW 5	0.23	0.35	1.5	0.05	0.05

Mechanical Requirement

Designation	Mechanical properties
Designation	Re min.	Rm min.	A min.
HFW 2	N/mm2 195	N/mm2 320	25%
HFW 3	215	360	24
HFW 4	235	410	22
HFW 5	340	490	20

Why Choose UNIASEN?

Our BS 6323 standard steel tubes have high tensile strength, yield strength and elongation with strict control.

From mild steel for general applications to alloy steel for high strength applications, we have what you need.

We offer a processing service to provide a ready-to-fit product.

Our cold-finished seamless tubes are high in strength and lightweight. A great choice for projects that require strength without adding weight.

BS 6323 standard steel tubes work with post-treatments like carburizing and heat treatment. This gives you flexibility to tailor the tube to your needs.