ASTM A500 Q235 S235jr S355jr Cold Rolled / Hot Rolled Black Annealed ERW Welded Hollow Section Square Steel Tube

Looking for high-quality square steel tubes? Our factory manufactures ASTM A500 Q235 S235jr S355jr cold/hot rolled black annealed ERW welded hollow section square steel tubes. Order now!
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PRODUCTS DETAILS

Basic Info.

Model NO.
square tubes-20200610
Commodity
Square Tubes
Standard
ASTM A500 En10219
Size
10X10-400X400
Wall Thickness
0.5-20mm
Length
6.5m, 6.0m, 5.0m, 4.0m, 3.0m, 1-12.0m
Steel Grade
S235/S355, Stk400/Stk500, Q345/Q235
Surface
Bare, Oil Surface, Painted, Galvanized
Business Type
Manufacturer & Exporter
Transport Package
in Bundle by Steel Strip
Specification
10x10-400x400
Trademark
Youfa
Origin
China
HS Code
7306610000
Production Capacity
5000mt/Day

Product Description

ASTM A500 Q235 S235jr S355JR Cold Rolled / Hot Rolled Black Annealed ERW Welded Hollow Section Square Steel Tube

 

1.Product Description:  square and rectangular steel pipe


ASTM A500 Q235 S235jr S355jr Cold Rolled / Hot Rolled Black Annealed ERW Welded Hollow Section Square Steel Tube

 

electric-resistance-welded
item Chemical composition max % Item mechanical property
steel C % Mn % S % P % Si % steel yield point Mpa tensile strength Mpa elongation %
Grade A 0.25 0.95 0.045 0.05 -- Grade A 205 (min) 330 (min) 26-30
Grade B 0.3 1.2 0.045 0.05 -- Grade B 240 (min) 415 (min) 21-26
Quality Standard: ASTM A53 ASTM A500 Standard Specification for Pipe, Black,and Hot-Dipped, Zinc-Coated, Welded and Seamless
 
chemical requirement   mechanical property shaped structural tubing
Element Composition. %   Grade A Grade B Grade C Grade D
Grade A, B and D Grade C tensile strength,min, psi 45000 58000 62000 58000
Heat 
Analysis
Product
Analysis
Heat 
Analysis
Product
Analysis
Mpa 310 400 427 400
yield strength, min, psi 33000 42000 46000 36000
C, max 0.26 0.30 0.23 0.27 Mpa 228 290 317 250
Mn, max 1.35 1.40 elongation in 2in. (50.8mm),min % 25 23 21 23
P, max 0.035 0.045 0.035 0.045 quality standard: ASTM A500 standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in
Rounds and Shapes
S, max 0.035 0.045 0.035 0.045
Copper,(when   specified) min 0.20 0.18 0.20 0.18



Other Specification:

End Shape

Beveled end, plain end, vanished, or adding plastic caps to protect the two ends as per customer's

 requirements

Surface 

Treatment

Oiled, Galvanized, painted black

Technique 

Hot rolled, Cold Rolled

Application

1. structural applications,  industrial and residential construction

2. fence post / fencing / bollards / bed frame

3. natural gas

4. in fire sprinkler systems / water supply

5. athletic equipment / light pole / lamppost

6.  Agriculture / greenhouse

Package

1. Bundle Packing.

2. Wrapped in waterproof paper.

3. Sackcloth with several steel strips.


Product Pictures:
ASTM A500 Q235 S235jr S355jr Cold Rolled / Hot Rolled Black Annealed ERW Welded Hollow Section Square Steel Tube
ASTM A500 Q235 S235jr S355jr Cold Rolled / Hot Rolled Black Annealed ERW Welded Hollow Section Square Steel Tube
ASTM A500 Q235 S235jr S355jr Cold Rolled / Hot Rolled Black Annealed ERW Welded Hollow Section Square Steel Tube
ASTM A500 Q235 S235jr S355jr Cold Rolled / Hot Rolled Black Annealed ERW Welded Hollow Section Square Steel Tube
ASTM A500 Q235 S235jr S355jr Cold Rolled / Hot Rolled Black Annealed ERW Welded Hollow Section Square Steel Tube
ASTM A500 Q235 S235jr S355jr Cold Rolled / Hot Rolled Black Annealed ERW Welded Hollow Section Square Steel Tube

Our Advantage of Square Pipes:
ASTM A500 Q235 S235jr S355jr Cold Rolled / Hot Rolled Black Annealed ERW Welded Hollow Section Square Steel Tube




Our regular Steel Pipes:

ASTM A500 Q235 S235jr S355jr Cold Rolled / Hot Rolled Black Annealed ERW Welded Hollow Section Square Steel Tube



Factory Display: YOUFA steel pipe group.

ASTM A500 Q235 S235jr S355jr Cold Rolled / Hot Rolled Black Annealed ERW Welded Hollow Section Square Steel Tube


Customers Visit YOUFA steel pipe group.

ASTM A500 Q235 S235jr S355jr Cold Rolled / Hot Rolled Black Annealed ERW Welded Hollow Section Square Steel Tube
                                                              FAQ:
 
Are you a trading company or manufacturer?

Yea, we are manufacturer. We have our own manufacturer-Tianjin YOUFA steel pipe group.
Besides headquartering in Tianjin, currently we have11 subsidiariesand branches in Tangshan, Handan,and Shaanxi. There are totally 9000 employees

Tianjin YOUFA international Trade Co.,Ltd. is our own export trade platform.

URL:       sianosteel.en.made-in-china.com
2  
How can I get the price?
We usually quote within 24 hours after we get your inquiry by telling us the material, out diameter,
wall thickness length, quantity and application of the steel pipe which you need. If you are very
urgent to get the price, please inform us in email so that we will regard your inquiry priority.
 
3  
How can I get a sample to check your quality?
After price confirmation, you can require for samples to check our quality.
we will provide you the sample for free, however we could only make sure the same material, the
dimension will be much similar as your request but not same. And customer should afford the
charge of shipment.
 
4  
How long can I expect to get the sample?
The samples will be sent to you via express and arrive in 3-5 days.
You can use your own consignee account or prepay us if you do not have an account.
 
5  
What about the lead time for mass production?
Honestly, it depends on the order quantity and the season you place the order.
 
6  
What is the Small Qty Process Charge.
It is the payment for customer whose order qty is less then Min Order Qty. Because small qty of
products should be processed same in the production flow as big qty and the average cost would
get much higher than big ones. So there is a small Qty Process Charge to ensure the profit of our
factory and usually the amount of it is about $250.00
 
7  
Could the pipe be customized for us?
Yes. We are the professional manufacturer which has rich experience in Steel Pipe manufacturing.
We could print the logo and label under your requirements if you need OEM products.
 
8  
What is your terms of delivery?
We accept EXW, FOB, CIF, CFR etc. You can choose the one which is the most convenient or cost
effective for you.
 
9  
Shipping
Asia Countries: 10-30 days,
Middle East: Around 30-40 days
Africa: Around 30-50 days
South America : 30-60 days
Please advise your port in you inquiry for quoting, will quote for you specifically

YOUFA steel pipe group attend the exhibition:


ASTM A500 Q235 S235jr S355jr Cold Rolled / Hot Rolled Black Annealed ERW Welded Hollow Section Square Steel Tube


About US:
Tianjin YOUFA were founded on July 1st,2000, besides headquartering in Tianjin, currently we have 11 subsidiariesand branchs in Tangshan, Handan, and Shanxi. They are totally 9000 employees, In addition 64 ERW Steel Pipe production line, 42 Hot dipped galvanized steel pipe production line, 33 square and rectangular praoduction lines, 15 galvanized square and rectangular praoduction lines, 9 SSAW steel pipe production line, 3 National accredited Laboratory and 1 Tianjin government accreditedbusiness technology center, in 2019, we had produced all kinds of steel pipes 16 million tons, realizing export being USD 0.16 billion. Our steel pipes production and sale AT NO.1  in nine consecutive years.

Why Choose US:
We are the Biggest steel pipe manufacturer in China. the most reliable steel pipe supplier in China.
And we have rich experience in handling order for heavy buyers with professional process.
  1. Stable raw material purcahsing.
  2. Favorable orders follow-up management.
  3. Laudable Lead-time & Shipment Control.
  4. Traceable quality evaluation.
  5. Flexible payment terms.

If you are Interest, Send me the inquiry here!
 

Contact us

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