
Q345 Welded Galvanized Steel Pipe
The main components of Q345 steel pipe include carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S) and trace amounts of other alloying elements.
Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of q345 welded galvanized steel pipe in China, also supports customized service with low price. Welcome to wholesale discount q345 welded galvanized steel pipe for sale here from our factory. Contact us for free sample.
High strength: Q345 steel pipe is a low-alloy high-strength steel that has excellent tensile strength and yield strength and is suitable for structural and engineering applications that have strict requirements for high strength and stiffness, such as bridges, construction, and machinery manufacturing.
Good impact toughness: Q345 steel pipe has good impact toughness and can maintain stable performance when subjected to impact or vibration loads. Especially suitable for applications that require resistance to shock or vibration, such as structures or mechanical parts.
Good welding performance: Q345 steel pipe has good welding performance and can be easily connected through various welding methods, including arc welding, TIG welding, MIG welding and submerged arc welding, etc. This makes it suitable for fabricating welded structures and piping systems.
Can be galvanized: Q345 steel pipe can be galvanized to improve its corrosion resistance. This makes it suitable for use in outdoor and humid environments without being susceptible to rust, thereby extending its service life.
Multipurpose: Q345 steel pipe is suitable for a variety of applications, such as construction, manufacturing, oil and gas transportation, hydraulic engineering, bridge construction, automobile manufacturing, heating, gas supply, etc. Its versatility makes it stand out among various structural materials.
Product Properties
Q345 steel tubes chemical composition:
| rade |
C |
Mn |
Si |
P |
S |
V |
Nb |
Ti |
Al |
Cr |
Ni |
|
≤ |
≤ |
≤ |
≤ |
≥ |
≤ |
≤ |
|||||
|
Q345 |
0.2 |
1.00-1.60 |
0.55 |
0.04 |
0.04 |
0.02-0.15 |
0.015-0.060 |
0.02-0.20 |
- |
|
|
Q345 steel tubes mechanical property
Grade |
Yield Strength Min |
Tensile Strength |
Elongation |
||
|
(Specified thickness in mm) |
Min |
Min |
|||
|
Q345 |
≤16 |
>16-30 |
>30 |
|
|
|
325 Mpa |
315 Mpa |
305 Mpa |
490 Mpa |
21% |
|
|
Product Name |
Galvanized round /square pipe |
|
Standard |
ASTM A500,ASTM A53,API 5L ,BS1387, EN39, JIS 3466; |
|
Outer Diameter |
21.3mm~1620mm |
|
Thickness |
Square pipe10*10mm-500*500mmas customer request. |
|
Surface Treatment |
1. Galvanized |
|
Certificate |
API 5L,FM,UL, CE,etc |
|
Material |
Q195, Q235, Q345, Gr.B, |
|
Section Shape |
Round, Square, Rectangular. |
|
Payment Term |
30%T/T Advance + 70% Balance |
|
MOQ |
30 ton |
|
Packing |
Waterproof paper,galvanized steel covered and steel strip packed |

Company Advantage
We have more than years experience in exporting products to all over the world and can provide high quality products!
We have 5000 tons of stock and strong capital. Besides, we provide 24 hours service.
Wide excellent experiences with after-sale service.
Every process will be checked by responsible QC which insures every product's quality.
Customer Visit

Company environment

Factory environment

FAQ
Q:How can we trust your company?
A:We have been specializing in steel business for many years,our headquarter is located in Anyang,Henan,China,you are welcome to visit us in any way you want,you can place your order in various ways,our trade warranty can ensure your payment.
Q:What product information do I need to provide?
A:You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.
Q:how can we guarantee quality?
A:Always a pre-production sample before mass production,Always final Inspection before shipment.
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