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
- Category
- Steel Pipes
Torich International,.Ltd
- 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 | Chemical Compositions( ladle analysis) | mechanical properties | |||||||||||||||
C | Si | Mn | P | S | BKc | BKWc (cold finished/soft ) | GBK and GZF (annealed) | NBK and NZF (normalized) | |||||||||
| max. | max. | max. | max. | max. | Re min. | Rm | A | Re min. | Rm | A | Re | Rm | A min. | Re | Rm | A |
| % | % | % | % | % | N/m | N/m | % | N/m | N/m | % | N/m | N/m | % | N/m | N/m | % |
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 | ||
diameter | Tolerance | |
over | Up to and including | |
mm | mm | mm |
30 | ±0.10 | |
30 | 50 | ±0.15 |
50 | 70 | ±0.20 |
70 | 90 | ±0.25 |
90 | 110 | ±0.30 |
110 | 130 | ±0.35 |
130 | 160 | ±0.45 |
160 | 190 | ±0.55 |
190 | 220 | ±0.65 |
220 | 250 | ±0.75 |
Tolerance on specified cut lengths | |||
Specified cut length | Tolerance(mm) | ||
over | up to and including | ||
mm | mm | mm | |
500 | + | 2 | |
- | 0 | ||
500 | 2000 | + | 3 |
- | 0 | ||
2000 | 5000 | + | 5 |
- | 0 | ||
5000 | 7000 | + | 10 |
- | 0 | ||
7000 | __ | by agreement | |
NOTE Closer tolerances may be obtained by agreement between the purchaser and manufacturer. | |||
Distance between platens for flattening test | |
Designation | Distance between platens |
% | |
CEW 1 | 66 |
CEW 2 | 75 |
CEW 3 | 85 |
CEW 4 | 85 |
CEW 5 | 85 |
Minimun expansion for drift expanding test | ||
Designation | Expansion minimun for tube thickness | |
Up to and including 4mm | Over 4 mm up to and including 8 mm | |
% | % | |
CEW 1 | 12 | 8 |
CEW 2 | 12 | 8 |
CEW 3 | 10 | 6 |
CEW 4 | 8 | 5 |
CEW 5 | 8 | 5 |
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 |
- 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.
- Main Product
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