BS 6323 Grade CFS 4 Carbon Steel Seamless Tubes are also known as mild steel pipes and tubes. BS
6323 Grade CFS 4 Tubes are low-cost Low Carbon Steel Tubes having a maximum carbon content of 025%
and a manganese concentration of 120% that are easy to form and shape. These pipes are made to BS
specifications and are commercially known as cs pipes or ms pipes. Low carbon steel pipes are not as
hard as high carbon steel pipes, though carburizing can boost their surface hardness.
The most significant advantage of cold forming is that the products have tight tolerance and tight section characteristics. As a result, the Cold Drawn Seamless Tube requires less machining and has better straightness. As a result, the product is more formable.
However, the most important and apparent change in the CEW Oil Draw Tubes is in the surface polish.
The mechanical qualities of the Cold Drawn Seamless Tube have also improved. This method also yields
goods with improved yield and tensile strength. Cold-formed steel has a higher mechanical strength,
which makes Steel Tubes for Automotive Purpose ideally suited for use. It addresses the needs for both
cew and erw tubes in automotive applications such as scooters and motorcycles. Not to mention the
cost-effectiveness of using these tubes, which is ultimately the conclusion of the aforementioned
factors. As a result, one of the primary benefits of employing them is the low cost.
BS 6323 Grade CFS 4 Carbon Steel Seamless Tubes are certified with Mill test Certificate in accordance with En 10204 Type 3.1/3.2. Where 3.2 indicates In-stage inspection by independent inspection agencies like TUV, DNV, BVQS, LLOYDS & EIL.br
IBR, NACE MR 0175,NACE MR 0103, HIC, IGC, IMPACT are adhered as supplementary testing requirements for BS 6323 Grade CFS 4 which can be fulfilled with a government approved NABL laboratory. BS 6323 Grade CFS 4 Tubes are supplied in varnished condition in order to prevent formation of rust.
|Product, Product application||Precision seamless steel tubes for standard use|
|Dimensional standard||6323-4, Specification for seamless and welded steel tubes for automobile, mechanical and general engineering purposes|
|TDC||6323-1,4 , Specification for seamless and welded steel tubes for automobile, mechanical and general engineering purposes.|
|Steel grade||CFS 4 Surface coating Galvanized zinc coated , Galvanized zinc coated plus polyester coating , Galvanized zinc coated plus PVC coating , Phosphated|
|Dimensions||4.0 x 0.5 - 120.0 x 13.0 mm|
|DIN 23912 grade||-||-||-||-||-||-||EN 1.0408 Grade
|Yield Strength||Tensile Strength||Elongation A5 min|
|MPa min||ksi min||MPa min||MPa min||ksi min||Percentage|
|Carbon Steel||Low Temperature Carbon Steel||Low Temperature Alloy Steel|
|Alloy Steel||High Temperature Carbon Steel||High Temperature Alloy Steel|
• Automobile Sectors
• Interior & Exterior architectural structures
• Water pipe lines
• Gas lines
• Oil & Gas Industries etc.
|Outer diameter and wall Thickness|
|Execution||Size Range||OD Tolerance||Wall tolerance|
|Hot-rolled Tube||OD – 80 mmOD > 80 mmWall < 12 mmWall - 12 mm||± 0.4 mm± 0.5 % of OD||± 0.7 mm± (5 % x wallthickness + 0.1 mm|
|Hot-rolled peeled tube||All sizesWall < 12 mmWall - 12 mm||+ 0.25/- 0 mm||± 0.8 mm± (5 % x wall thickness+ 0.2 mm)|
|Cold Worked tubecold-rolled or cold-drawn||OD < 40 mmOD 40 - 80 mmOD > 80 Wall Thickness< 6 mm Wall Thickness6 - 8 mm Wall Thickness > 8||+ 0.30/- 0 mm*+ 0.35/- 0 mm*+ 0.40/- 0 mm*||± 0.30 mm± 0.35 mm± 0.40 mm|
The maximum deviation from the straight line is 1 mm on a gauge length of 1000 mm.
The maximum out-of-roundness is 65% of the total outer diameter tolerance.
|Component length (mm)||OD 30-100 mm||OD 100-254 mm|
|10-100||+ 1.0/- 0||+ 2.0/- 0|
|100-600||+ 2.0/- 0||+ 3.0/- 0|
|600-1200||+ 3.0/- 0||+ 4.0/- 0|
|1200-5000||+ 5.0/- 0||+ 6.0/- 0|
|All tubes are supplied with clean, square cut ends.
Deburring and/or chamfering can be carried out on request.
|• Black and Bare
• External Varnished with Black or Clear LAcquer
|Tube surface||Mill test certificate|
|Tubes are supplied normally without anti-corrosive
anti-corrosive treatment is available and is carried out on request.
|• MTC is issued in accordance with EN 10204.|
|Tubes are bundled as standard, with steel straps into hexagonal bundles with one end flush. Length sorting can be carried out on request. Tubes can also be bundled in multiples. Bundle weights are adjusted as requested by the customer. Each bundle contains tubes from a single cast/heat only.||Each tube is marked with tube type, heat number, steel grade and size. Information is repeated along the whole length of the tube. Other markings, such as stamping, can be made on request. Bundles are also labeled with a tag having info both alphanumeric and by bar code.||Material delivered direct from our mill is labeled in accordance with automotive standard, ie with both alphanumeric and bar code information. Customer specific data can be added on request.|
|Seamless Pipes||Seamless Tubes||Pipes|
|• Cold Drawn Seamless Pipes||• Cold Drawn Seamless Tubes|| • Boom Pipe
• Square Pipes
|• Hot Drawn Seamless Pipes||• Hot Drawn Seamless Tubes|| • Culvert Pipes
• Round Pipes
• Honed Pipes
|Welded Pipes||Welded Tubes||Tubes|
|• Electric Resistance Welded(ERW) Pipes||• Electric Resistance Welded(ERW) Tubes|
|• Continous Welded(CW) Pipes||• Continous Welded(CW) Tubes|
|• Submerged Arc Welded(SAW) Pipes||• Submerged Arc Welded(SAW) Tubes||• Boom Tubes|
|• Spiral Welded Pipes||• Spiral Welded Tubes||• Square Tubes|
|• High Frequency Induction(HFI)||• High Frequency Induction(HFI)||• Round Tubes|
|• Longitudinally Submerged Arc
|• Longitudinally Submerged Arc
|• Honed Tubes|
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