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BS6323-4 Cold Finished Seamless Steel Tubes Grade CFS1 CFS2 CFS3 CFS4 CFS5

TORICH INTERNATIONAL CO.,LTD

City: ningbo

Province/State:zhejiang

Country/Region:china

Contact Person:MrRichard SHEN View Contact Details

BS6323-4 Cold Finished Seamless Steel Tubes Grade CFS1 CFS2 CFS3 CFS4 CFS5

Brand Name : TORICH
Model Number : BS6323-4
Certification : ISO 9001 ISO 14001 EN 10204.3.1 TS 16949 TUV
Place of Origin : China
MOQ : 5 Ton
Price : USD 600-1200 ton
Supply Ability : 60000 Ton/Year
Delivery Time : 30 days
Packaging Details : Packing in wooden, hexagonal box or other seaworthy ways
Material : Carbon Steel
Steel grade : CFS1 CFS2 CFS3 CFS4 CFS5 etc
Standard : BS6323-4
Shape : Round
Size range : O.D.:6-280mm W.T.:1-30mm L:max12000mm
Applications : For Auto Industry / for Machinery Use/Mechanical and General Engineering Purposes
Production method : Seamless and welded
Payment Terms : T/T L/C D/P D/A WesternUnion MoneyGram Others
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BS6323-4 BK BKW GBK NBK GZF NZF Cold Finished Seamless Steel Tubes Grade CFS1 CFS2 CFS3 CFS4 CFS5 42CrMo4


Standard: BS6323-4 Seamless and Welded steel tubes for automobile,mechanical and general engineering purposes
Part 4: Specific requirements for cold finished seamless steel tubes


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

Size range: O.D.:6-280mm W.T.:1-30mm L:max12000mm

Method of manufacture:

The tubes are manufactured by a seamless process and shall be cold finished

It is permissible for cold finished tubes to have on internal and external surfaces an adherent layer of residual to subsequent processing, then their removal shall be the subject of an agreement between the manufacturer and the purchaser.


Delivery Condition:

The tubes are supplied in one of the following condition:

a. Cold finished/hard (cold finished as drawn) : BK

b. Cold finished/soft (lightly cold worked ): BKW

c. Annealed: GBK

d. Annealed (including de-scaling): GZF

e. Normalized: NBK

f. Normalized ( including de-scaling): NZF


Tests:

Flattenning tests

Leak tightness test- Eddy current test


Design
ation

Chemical Compositions( ladle analysis)




C

Si

Mn

Pmax.

Smax.

Cr

Mo


%

%

%

%

%

%

%

CFS 3

0.20 max.

0.35 max.

0.90max.

0.050

0.050

__

__

CFS 3Aa

0.20 max.

0.10 to 0.35

0.60 to 1.00

0.050

0.050

__

__

CFS 4

0.25 max.

0.35 max.

1.20 max.

0.050

0.050

__

__

CFS 5b

0.23 max.

0.50 max.

1.50 max.

0.050

0.050

__

__

CFS 6

0.30 to0.40

0.35 max.

0.50 to 0.90

0.050

0.050

__

__

CFS 7

0.20 to 0.30

0.35 max.

1.20 to1.50

0.050

0.050

__

__

CFS 8d

0.40 to 0.55

0.35 max.

0.50 to0.90

0.050

0.050

__

__

CFS 9

0.29max.

0.35 max.

1.50max.

0.050

0.050

__

0.15 to0.25

CFS 10

0.26max.

0.35 max.

0.80max.

0.050

0.050

0.80 to1.20

0.15 to0.30

CFS 11

0.45max.

0.35 max.

1.00 max.

0.050

0.050

0.80 to1.20

0.15 to0.30



Desig
nation

BKc (cold finished/hard)

BKWc(cold finished/soft )

GBK and GZF(annealed)

NBK and NZF(normalized)

Remin.

Rmmin.

Amin.

Remin.

Rmmin.

Amin.

Remin.

Rmmin

Amin.

Remin.

Rmmin.

Amin.

N/mm2

N/mm2

%

N/mm2

N/mm2

%

N/mm2

N/mm2

%

N/mm2

N/mm2

%

CFS3

360

450

6

280

400

9

170

340

26

215

360

24

CFS3Aa

360

450

6

280

400

9

170

340

26

215

360

24

CFS4

415

520

5

315

450

8

200

400

24

235

410

22

CFS5b

480

600

4

385

550

6

__

__

__

340

490

20

CFS6

470

590

5

350

540

7

300

440

22

280

460

21

CFS7

560

700

4

460

650

7

__

__

__

__

__

__

CFS8d

575

720

4

470

670

6

300

510

20

340

540

18

CFS9

575

720

4

470

670

6

__

__

__

__

__

__

CFS10

575

720

4

470

670

6

__

__

__

__

__

__

CFS11

575

720

4

__

670

6

__

__

__

__

__

__


"NOTE Welding of tubes of grades 3,3A and 5 does not require special techniques but care should be taken and welding carried out in accordance with guidance given in the appropriate British Standard for welding,e.g. BS 5135.The welding of other grades shown may require special techniques.
aGrade 3A shall be suitable for case hardening purposes.
bGrain refining elements may be added at the option of the manufacturer .
cIf tubes in the BK and GKW condition are subsequently welded,brazed or heated the mechanical properties in the heat affected zone may be reduced to those given for the delivery condition GBK or NBK.
dSteel within the limits shown,but in accordance with the chemical composition of BS 970-1,may be supplied if agreed ate the time of order or enquiry."




Publications reffered to:


BS970, Specification for wrought steels for mechanical and allied engineering purposes


BS970-1, General inspection and testing procedure and specific requirements for carbon, carbon manganese, alloy and stainless steels


BS3601, Specification for steel pipes and tubes for pressure purposes: carbon and carbon manganse steel with specified elevated temperature properties.


BS 3603, Specification for steel pipes and tubes for pressure purposes: carbon and alloy steel with specified low temperature properties


BS3604, Specification for steel pipes and tubes for pressure purposes: ferritic alloy steel with specified elevated temperature properties.


BS3605, Seamless and welded austenitic stainless steel pipes and steel tubes for pressure purposes


BS4360, Specification for weldable structural steels


BS4848, Hot-rolled structural steel sections


BS4848-2, Hollow sections


BS5135, Metal-arc welding of carbon and carbon manganese steels


BS6323, Specification for seamless and welded steel tubes for automobile, mechanical and general engineering purposes


BS6323-1, General requirements


ISO 4200, Plain end steel tubes, welded and seamless - General tables of dimensions and masses per unite length


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BS6323-4 Cold Finished Seamless Steel Tubes Grade CFS1 CFS2 CFS3 CFS4 CFS5 Images

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