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Factory wholesale Square Tube Carbon - Black Annealed Cold Rolled Square Tube For Steel Furniture And Structure – Win Road

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Factory wholesale Square Tube Carbon - Black Annealed Cold Rolled Square Tube For Steel Furniture And Structure – Win Road Detail:

Cold Rolled Square Tube material is cold rolled carbon steel strap with wall thickness 0.6mm to 2.0mm. When cold-rolled steel strap is heated to the annealing temperature, the surface color will turn black due to high temperature contact with air, which is called black stripping. The physical properties become soft, which is convenient for further welding to make steel pipes. The common hardness is 57HRB, and it can also be reduced to different hardness as needed.

OD Sqaure: 15mmx15mm – 80mmx80mm;
Rectagular: 10mm*20mm-350mm*400mm ;
Thickness 0.6mm – 2 mm (11 gauge-36gauge)
Length Range 1m-12m (5.8m , 6m, 19ft, 20ft, 21ft,24ft) available customized
Technique Cold rolled black annealed
Surface Bare, black painting, oiled
Raw material Q195 (carbon steel, yield strength 195mpa)
Application Furniture pipe, steel structure

 

Differences between “black annealed cold rolled square tube” and “hot rolled square tube”

pic (1) Black annealed cold rolled square tube
Raw material is cold rolled steel straps, then is heated (annealing) .
Diameter 15mm-80mm
Wall thickness 0.6mm-2mm
Widely used for steel furniture, chair, desk, table, bed frame, steel structure
pic (2) Hot rolled square tube
Raw is hot rolled steel straps, not heated.
Diameter 20mm-400mm
Wall thickness 2mm-20mm
Used for construction, steel post.
 
OD (mm) OD (inch) OD (mm) OD (inch)
15x1516x1618x18
19×19
20×20
25×25
30×30
38×38
40×40
45×45
50×50
55×55
60×60
65×65
70×70
75×75
80×80
0.59”x0.59”0.63”x0.63”0.71”x0.71”
0.74”x0.74”
0.8”x0.8”
1”x1”
1.2”x1.2”
1.5”x1.5”
1.6”x1.6”
1.8”x1.8”
2”x2”
2.2”x2.2”
2.4”x2.4”
2.5”x2.5”
2.8”x2.8”
3”x3”
3.2”x3.2”
15x2020x25
20×30
20×40
25×50
30×60
40×60
40×80
0.59”x0.8”0.8”x1”0.8”x1.2”
1.2”x1.6”
1”x2”
1.2”x2.4”
1.6”x2.4”
1.6”x3.2”

Application
The cold rolled square tube is widely used for furniture and steel structure frame, such as steel desk, table, chair, steel bed, shelf,gym equipment.

quare tube for furniture

Loading and packing
Package: 1. In bundle, tied with steel straps, no other package.
2.In bundle, wrapped with plastic cover,tied with steel straps, each end with nylon straps.
Loading:
Loading by container for thin wall thickness tubes.
Sometime put small diameter tube into big diameter tube to save container space.

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FAQ
1. To get an exact price, please send us below details for your inquiry:
(1) Thickness
(2) OD (out diameter0
(3) Tube legnth
(4) Slightly oiled surface , or dry surface
(5) Quantity

2. What kind of package will I get?
Generally it will be standard exporting package. We can supply the package according to customers’ requirement.
Find more information from “packing & shipping” item above.

3. What’s the differences between “cold rolled” and “cold rolled black annealed”?
The cold rolled black annealed steel coil will go through heating, while “cold rolled steel coil” will not heat again.

4. About the “oiled” surface .
Oiled surface is to prevent the steel from getting rust. While not all customers want the oiled surface. Generally we supply the product without oiled surface.

5. Customized Requirement.
Product is available customized on thickness, OD, surface coating thickness, logo printing, packing. As each requirement is customized, so please contact our sales to get exact answer.

6.Do you supply sample?
Yes, we provide sample. Generally sample is free of charge.
While international courier isn’t free. We will return the courier cost once we cooperate.
Sample will be sent by air courier when weight less than 1kg.


Product detail pictures:

Factory wholesale Square Tube Carbon - Black Annealed Cold Rolled Square Tube For Steel Furniture And Structure – Win Road detail pictures

Factory wholesale Square Tube Carbon - Black Annealed Cold Rolled Square Tube For Steel Furniture And Structure – Win Road detail pictures

Factory wholesale Square Tube Carbon - Black Annealed Cold Rolled Square Tube For Steel Furniture And Structure – Win Road detail pictures


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We thinks what clients think, the urgency of urgency to act from the interests of a client position of theory, allowing for greater quality, lessen processing costs, price ranges are much more reasonable, won the new and outdated shoppers the support and affirmation for Factory wholesale Square Tube Carbon - Black Annealed Cold Rolled Square Tube For Steel Furniture And Structure – Win Road, The product will supply to all over the world, such as: US, Oman, Mauritius, Our products are mainly exported to Southeast Asia, the Middle East, North America and Europe. Our quality is surely guaranteed. If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.
  • The product classification is very detailed that can be very accurate to meet our demand, a professional wholesaler.
    5 Stars By Darlene from Detroit - 2017.02.18 15:54
    The manufacturer gave us a big discount under the premise of ensuring the quality of products, thank you very much, we will select this company again.
    5 Stars By Arthur from Iceland - 2017.05.02 18:28
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