BS6323-6 Cold Finished Electric Resistance Welded Steel Tube

BS6323-6 Cold Finished Electric Resistance Welded Steel Tube


Negotiable Min Order Quantity Unit

Required Quantity
Place of Origin
China
Brand name
Torich
Payment Terms
L/C,T/T
Production method
Negotiable
Shipping / Lead Time
Negotiable / Negotiable
Keyword
welded steel pipe, cold finished steel tubes, bs steel pipe
Category
Steel Pipes

Torich International,.Ltd

Membership
PRO
Country / Year Established
China China /
Business type
Trading Company
Verified Certificate

9

Product name BS6323-6 Cold Finished Electric Resistance Welded Steel Tube Certification -
Category Steel Pipes Ingredients -
Keyword welded steel pipe , cold finished steel tubes , bs steel pipe Unit Size -
Brand name Torich Unit Weigh -
origin China Stock -
Supply type - HS code -

Product Information

 

BS6323-6 CW1 CW2 CW3 CW4 CW5 Cold Finished Electric Resistance Welded Steel Tubes with BK , BKW , GBK , GZF , NBK , NZF

 

 

Standard: BS6323-6  Seamless and Welded Steel Tubes for Automobile,Mechanical and General Engineering Purposes                                        
Part 6: Specific requirements for cold finished electric resistance welded(including induction welded) steel tubes                        

                
Applications: for Auto industry / for machinery use/mechanical and general engineering purposes                
                                                          
Size range: O.D.:6-350mm     W.T.:1-35mm      L:max12000mm

 

Method of Manufacture:

The tubes are manufactured from flat rolled strip, longintudinally welded continuously by the passage of an electric current across the abutting edges without the addition of filler metal.

They are subsequently cold finished normally on both the inside and outside surfaces, where it is permissble to have both an adherent layer of residual lubricant originating from the drawing process and visible traces of the internal weld upset.

If phosphate or other residues are detrimental to subsequent processing, their removal shall be the subject of an agreement between the manufacturer and purchaser.

 

Delivery Condition:

The tubes are supplied in one of the following condition:

a. Cold finished/hard (cod 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  

It is permissible for tubes supplied in the GBK and NBK conditions to be discoloured, but they shall be free from loose scale.

Where tubes, in the GBK condition are required bright annealed, this shall be the subject of an agreement between the purchaser and the manufactuer.

 

Testing:

Flattening test

Drift expanding test

Leak tightness test.   

 

 

Chemical Compositions and mechanical properties

Design
ation

Chemical Compositions( ladle analysis) 

mechanical properties

C

Si  

Mn 

S     

BKc 
(cold finished/hard)

BKWc (cold finished/soft )

GBK and GZF                                 (annealed)

NBK and NZF                             (normalized)

 

max.

max.

max.

max.

max.

Re       min.

Rm
min.

A
min.

Re       min.

Rm
min.

A
min.

Re
min.

Rm
min.

A
min.

Re
min.

Rm
min.

A
min.

 

%

%

%

%

%

N/m
m2

N/m
m2

%

N/m
m2

N/m
m2

%

N/m
m2

N/m
m2

%

N/m
m2

N/m
m2

%

CEW1a

0.13

__

0.60

0.050

0.050

320

400

6

245

350

10

150

270

27

155

280

25

CEW2a

0.16

__

0.70

0.050

0.050

355

420

6

260

370

10

160

300

27

195

320

25

CEW3a

0.20

0.35

0.90

0.050

0.050

360

450

6

280

400

9

170

340

26

215

360

24

CEW4b

0.25

0.35

1.20

0.050

0.050

415

520

5

315

450

8

200

400

24

235

410

22

CEW5b

0.23

0.50

1.50

0.050

0.050

480

600

4

385

550

6

__

__

__

340

490

20

 

 
Tolerance on diameter
diameterTolerance
overUp to and including
mmmmmm
 30±0.10
3050±0.15
5070±0.20
7090±0.25
90110±0.30
110130±0.35
130160±0.45
160190±0.55
190220±0.65
220250±0.75

 

  
Tolerance on specified cut lengths
Specified cut lengthTolerance(mm)
overup to and including
mmmmmm
 500+2
-0
5002000+3
-0
20005000+5
-0
50007000+10
-0
7000__by agreement
NOTE Closer tolerances may be obtained by agreement between the purchaser and manufacturer.

 

 

Distance between platens for flattening test
DesignationDistance between platens
 %
CEW 166
CEW 275
CEW 385
CEW 485
CEW 585

 

 
Minimun expansion for drift expanding test
DesignationExpansion minimun for tube thickness
Up to and including 4mmOver 4 mm up to and including 8 mm
 %%
CEW 1128
CEW 2128
CEW 3106
CEW 485
CEW 585

 

Note: Special steel grade is also available, according to customer request.

 

B2B Trade

Price (FOB) Negotiable transportation -
MOQ Negotiable Leadtime Negotiable
Payment Options L/C,T/T Shipping time Negotiable

Torich International,.Ltd

Country / Year Established
China China /
Membership
PRO
Business type
Trading Company

9

President
sales
Address
Room706,Qiling Mansion, Yinzhou District, Ningbo,China 315100
Product Category
Steel Pipes
No. of Total Employees
101-500
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. 

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