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Quick Details

  • Standard: ASTM, BS, DIN, GB, ANSI A210-1996, ASTM A106-2006, BS 1387, BS EN10025, BS EN10219, DIN EN 10208-1-1998, GB 18248-2000
  • Grade: 10#-45#, A53-A369, Q195-Q345, 10#, 20#, 45#, A53(A,B), Q195, Q215, Q235, Q345
  • Thickness: 0.5 - 25 mm
  • Section Shape: Square
  • Outer Diameter: 10mm*10mm-600mm*600mm
  • Place of Origin: Tianjin, China (Mainland)
  • Secondary Or Not: Non-secondary
  • Application: Structure Pipe
  • Technique: Hot Rolled
  • Certification: CE
  • Surface Treatment: oiled, black painted or hot dip galvanized
  • Special Pipe: EMT Pipe
  • Alloy Or Not: Non-alloy
  • Product name: weight of square steel tube
  • Shape: Square. Rectangular
  • Length: 1-12m or customer's requestment
  • place of origin: Tianjin. Tangshan, China
  • Color: Silver, black
  • Usage: Construction Structure
  • Surface: painted or customers't Requirement
  • Materail: Low carbon steel
  • Delivery time: Within 7-20 Days about square tube
  • Packing: Bundles or as your requestments about square tube

Packaging & Delivery

Packaging Details: About packing
1. Package: weight of square steel tube
2. Loading: if 20ft: not more than 25mt and the length is not
more than 5.8m. if 40 ft: not more than 27mt.
3.about the mark: could no mark on the body or mark as your
order.
Delivery Detail: Shipped in 25 days after payment
Product Description

What is welded square steel pipe?


Welding pipes is one of the simplest and most durable ways to join piping together and steel pipes can simply be welded together with MIG (metal inert gas), TIG (tungsten inert gas or SMAW (stick metal arc) welding. Before welding two pipes together, avoid any gaps between the two pipes. While welding, take measures to ensure the continual alignment of the two pipes.                            

OD mm
WT mm
OD mm
WT mm
OD mm
WT mm
OD mm
WT mm
OD mm
WT mm
20x20
1.0-3.0
130x30
2.5-12
20x30
1.0-3.0
50x80
1.5-6.0
100x150
2.5-12
25x25
1.0-3.0
140x140
2.5-12
20x40
1.0-3.0
50x90
1.5-6.0
100x200
2.5-12
30x30
1.0-3.0
150x150
2.5-12
25x40
1.0-3.0
50x100
1.5-6.0
100x250
2.5-12
40x40
1.0-5.0
160x160
2.5-12
30x40
1.0-3.0
50x120
1.5-6.0
100x300
2.5-12
50x50
1.0-5.0
180x180
2.5-12
30x50
1.0-3.0
60x80
1.5-6.0
100x400
2.5-12
60x60
1.0-5.0
200x200
3.0-12
30x60
1.0-3.0
60x90
1.5-6.0
150x200
2.5-12
70x70
1.0-5.0
220x220
3.5-12
40x50
1.0-3.0
60x100
1.5-6.0
150x250
3.0-12
80x80
1.0-5.0
250x250
4.0-12
40x60
1.0-3.0
60x120
1.5-6.0
150x300
3.0-12
90x90
1.0-6.0
300x300
1.5-12
40x80
1.0-3.0
75x125
1.5-6.0
200x300
4.5-12
100x100
1.0-6.0
400x400
6.0-12
40x100
1.0-6.0
80x100
1.5-6.0
200x400
4.5-12
120x120
1.0-6.0
500x500
6.0-12
50x70
1.0-6.0
80x120
1.5-6.0
300x400
4.5-12

Material list

Elements
Chemical Composition%
Mechanical Property
Material
C%
Mn%
S%
P%
Si%
Yield Point
Tensile Strength
Elongation
(Mpa)
(Mpa)
(%)
Q195
0.06-0.12
0.25-0.50
<0.05
<0.045
<0.3
>195
315-430
32-33
Q235
0.12-0.2
0.30-0.70
<0.045
<0.045
<0.3
>235
375-500
24-26
Q345
<0.20
1.0-1.6
<0.04
<0.04
<0.55
>345
470-630
21-22
Product Detailed
Product Processing

Suaface oiling.

Surface painting

Packing and Laoding
Certification
Why choose us

Our Services

• Your inquiry related to our product & price will be replied within 24hours.
• Well-trained & experienced staff are to answer all your inquiries professionalin English of course.
• OEM is highly welcomed. We have strong R&D team here to help.
• Your business relationship with us will be confidential to any third party.
• Good after-sale service offered, please get back if you got question

Faq
Q1: Are you a factory or trading company?
A: We are an enterprise of both professional production and large sales.
Q2: Can I get some samples?
A: Yes, we are honored to supply you free samples of steel tube.
Q3: What about your payment term?
a) T/T: 30% T/T advance, 70% balance copy of B/L
b) L/C
c) T/T and L/C: 40% T/T advance, 60% L/C
d)Two sides deliberations
Q4: What about the lead time for mass production?
A:Honestly, it depends on the order quantity and specification and the season you place the order.
Q5: What is your terms of delivery?
A:We accept EXW,FOB,CFR,CIF,etc about $keywrods$. You can choose the one which is the most convenient or cost effective for you.

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Trade Assurance
China (Mainland) | Trading Company
Transaction Level:
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7 Transactions 250,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $265,000
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