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BS6323-6 Seamless Welded Precision Steel Tube Machining 35mm Wall Thickness

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BS6323-6 Seamless Welded Precision Steel Tube Machining 35mm Wall Thickness

Country/Region china
City & Province ningbo zhejiang
Categories Flanges
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Product Details

BS6323-6 Seamless Welded Precision Steel Tube Machining 35mm Wall Thickness

 

Standard for precision steel tube: 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 BS6323-6 Seamless and Welded Steel Tubes : Auto Industry Machinery Use Mechanical and General Engineering Purposes

Size range
for BS6323-6 Seamless and Welded Steel Tubes : O.D.:6-350mm W.T.:1-35mm L:max12000mm

 

Method of Manufacture for BS6323-6 Seamless and Welded Steel Tubes :

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.

Publications referred to:

BS 3601 BS 3602 BS 3603 BS 3604 BS 3605 BS 4360 BS 4848

BS 4848-2 BS 5135 BS 6323 BS 6323-1 BS 6363 ISO 4200

 

Delivery Condition for BS6323-6 Seamless and Welded Steel Tubes :

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 for BS6323-6 Seamless and Welded Steel Tubes:

Flattening test

Drift expanding test

Leak tightness test.

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

 

Chemical Compositions and mechanical properties
Design
ation
Chemical Compositions( ladle analysis)Mechanical Properties
 CSiMnPSBKc
(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
%
CEW1a0.13__0.600.0500.0503204006245350101502702715528025
CEW2a0.16__0.700.0500.0503554206260370101603002719532025
CEW3a0.200.350.900.0500.050360450628040091703402621536024
CEW4b0.250.351.200.0500.050415520531545082004002423541022
CEW5b0.230.501.500.0500.05048060043855506______34049020

 

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

 

Production Pictures for BS6323-6 Seamless and Welded Steel Tubes

BS6323-6 DOM Steel Tubes Machining , 35mm Wall Thickness Seamless Welded Steel Tubes BS6323-6 DOM Steel Tubes Machining , 35mm Wall Thickness Seamless Welded Steel Tubes

 

BS6323-6 DOM Steel Tubes Machining , 35mm Wall Thickness Seamless Welded Steel Tubes BS6323-6 DOM Steel Tubes Machining , 35mm Wall Thickness Seamless Welded Steel Tubes

 

Production Process for BS6323-6 Seamless and Welded Steel Tubes

Production Process for BS6323-6 Seamless and Welded Steel Tubes

Production Workshop for BS6323-6 Seamless and Welded Steel Tubes

 

FAQ for Precision Steel Tube

1. who are we?
TORICH is not only professional manufacturer and exporter, but also international marketing and sales company in the field of steel tubes from China. Our factory was established in 1997, with the name of Haiyan Sanxin Steel Pipe Co., Ltd. Our technicians are equipped with great engineering experience in steel pipe industry for more than 22 years, they have great command of production technology for Cold Drawing and Cold Rolling, as well as heat treatment and inspection. So we have a strong technician team and manufacturing capability.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Stainless Steel/Carbon Steel/AlloySteel,Titanium,Copper/Brass,etc.

4. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian

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