Q345 steel pipe is a kind of steel with excellent performance. It has the following characteristics:
High strength: Q345 steel pipe has excellent tensile strength and yield strength, which means it can withstand large mechanical loads and is widely used in various structural projects.
Impact toughness: Q345 steel pipe has very good impact toughness and can maintain good durability when subjected to impact or vibration loads. It is suitable for application scenarios with large force changes.
Plasticity: Q345 steel pipe also has high plasticity, making it easy to process and shape to meet the needs of different projects.
Corrosion resistance: In ordinary atmospheric environments, Q345 steel pipes have certain corrosion resistance. When there is a layer of oxide scale on the surface, it can prevent further corrosion. This makes it suitable for many applications in outdoor and non-corrosive environments.
In short, Q345 steel pipe is widely used in structural engineering, mechanical parts manufacturing, pipeline systems and other fields because of its high strength, good impact toughness, plasticity and certain corrosion resistance. Depending on the specific application scenario and corrosion requirements, corresponding corrosion protection measures can be considered to extend the service life of the steel pipe.
Q345 Steel Chemical Composition
|
Steel Standard |
Steel Grade |
Chemical Composition |
||||||||
|
C≤ |
Mn |
Si≤ |
P≤ |
S≤ |
V |
Nb |
Ti |
Al≥ |
||
|
Q345 |
A |
0.20 |
1.00~1.60 |
0.55 |
0.045 |
0.045 |
0.02~0.15 |
0.015~0.060 |
0.20 |
- |
|
B |
0.20 |
1.00~1.60 |
0.55 |
0.040 |
0.040 |
0.02~0.15 |
0.015~0.060 |
0.20 |
- |
|
|
C |
0.20 |
1.00~1.60 |
0.55 |
0.035 |
0.035 |
0.02~0.15 |
0.015~0.060 |
0.20 |
0.015 |
|
|
D |
0.20 |
1.00~1.60 |
0.55 |
0.030 |
0.030 |
0.02~0.15 |
0.015~0.060 |
0.20 |
0.015 |
|
|
E |
0.20 |
1.00~1.60 |
0.55 |
0.025 |
0.025 |
0.02~0.15 |
0.015~0.060 |
0.20 |
0 |
|
Q345 Steel Mechanical Property
|
Steel Standard |
Steel Grade |
Yield Strength Mpa |
Tensile Stregth Map |
Elongation % |
|
Q345 |
A |
345 |
470~630 |
21 |
|
B |
345 |
470~630 |
21 |
|
|
C |
345 |
470~630 |
22 |
|
|
D |
345 |
470~630 |
22 |
|
|
E |
345 |
470~630 |
22 |
GNEE has become a modern comprehensive steel service enterprise specializing in steel pipe product processing, sales and technical services. Jiangsu Taigang specializes in various types of stainless steel pipes, carbon steel pipes, alloy steel pipes, galvanized pipes, pipe fittings, etc. Steel pipe products have passed ISO9001, TS16949, BV, SGS and other internationally renowned certification agencies.
FAQ
Q. What are your advantages?
A. High quality products, competitive price and professional export service.
Q. Can I customise the products?
A. Of course you can. We can manufacture according to your samples or technical drawings. We can make moulds and jigs.
Q. How is the quality control in your factory?
A. We have our own laboratory, our own quality control system and professional quality inspectors. All our products are shipped after strict quality inspection.
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