Q390 H section steel
Q390 is a grade of steel in China's GB/T 1591-2008 standard, which specifies the technical requirements for low-alloy high-strength structural steel. Q390 steel is an evolution of Q345 steel and is designed to have higher strength properties while maintaining good weldability and ductility.
Q390 H section steel product Introduction：
|
Product Name |
Q390 H section steel | |
|
High(H) |
100-900mm |
|
|
Flange WIdth(B) |
50-400mm |
|
|
Length |
6-12m |
|
|
Web Thickness(t1) |
6-45mm |
|
|
Flange thickness(t2) |
8-64mm |
|
|
Standard |
GB706-2008; ASTM A36; ASTM A572; ASTM A992; AS/NZS3679.1; EN10025-2; JIS G3192, etc. |
|
|
Material |
SS400, Q235B,S235JR,Q345B, S355JR, A36 etc. |
|
|
Package |
Standard seaworthy packing or as required |
|
|
Delivery Time |
20 days after received the deposit |
|
Key characteristics of Q390 steel include:
Higher Strength: Q390 steel has higher yield and tensile strength compared to Q345 steel. This makes it suitable for applications where increased load-bearing capacity is required.
Chemical Composition: The chemical composition of Q390 steel typically includes elements such as carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), and trace amounts of other alloying elements. The specific composition can vary based on the grade and manufacturing process.
Mechanical Properties: Q390 steel exhibits improved mechanical properties, including higher yield strength and tensile strength compared to lower-grade steels.
[Q390 H type steel beam image]
Q390 H shaped steel chemical composition:
| Steel Grade | Quality Level | C % (≤) | Si % (≤) | Mn (≤) | P (≤) | S (≤) | Nb (≤) | V (≤) | Ti (≤) | Cr (≤) | Ni (≤) | Cu (≤) | N (≤) | Mo (≤) | B (≤) | Als (≥) |
| Q390 | Q390A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.07 | 0.20 | 0.20 | 0.30 | 0.50 | 0.30 | 0.015 | 0.10 | – | – |
| Q390B | 0.035 | 0.035 | – | |||||||||||||
| Q390C | 0.030 | 0.030 | 0.015 | |||||||||||||
| Q390D | 0.030 | 0.025 | 0.015 | |||||||||||||
| Q390E | 0.025 | 0.020 | 0.015 |
Q390 steel H beam mechanical priperty:
| Thickness or Dia. (Ø) mm; Yield Strength (≥N/mm2) | ||||||||||
| Steel Grade | Quality | Ø≤16 | 16< Ø ≤40 | 40 < Ø ≤63 | 63 < Ø ≤ 80 | 80 < Ø ≤ 100 | 100 < Ø ≤ 150 | 150 < Ø ≤ 200 | 200 < Ø ≤ 250 | 250 < Ø ≤ 400 |
| Q390 | Q390B | 390 | 380 | 360 | 340 | 340 | 320 | – | – | – |
| Q390C | ||||||||||
| Q390D | ||||||||||
Q390 carbon steel h beam steel elongation:
| Dia. (Ø) mm; Elongation (%) | |||||||
| Steel Grade | Sample direction | Ø≤40 | 40 < Ø ≤ 63 | 63 < Ø ≤ 100 | 100 < Ø ≤ 150 | 150 < Ø ≤ 200 | 250 < Ø ≤ 400 |
| Q390 | Horizontal | 20 | 19 | 19 | 18 | – | – |
| Vertical | 21 | 20 | 20 | 19 | – | – | |
A group photo of the GNEE company team. We were founded in 2008. We have rich experience in steel export and have established cooperative relationships with more than 120 countries and regions around the world. If you have any steel needs, please contact us and we will provide you with high-quality services. , to meet your purchasing needs, and also welcome new and old customers to visit:
Members of the Profile steel team of GNEE and other team members explained the goals of this event. In the following work, they will work hard to achieve their own customized goals:
GNEE company’s office environment and employee work style are displayed. New and old customers are welcome to visit. We will welcome your visit with great enthusiasm and provide you with professional steel services:
When GNEE customers visited the company, the salesperson warmly received them and took photos. We look forward to more cooperation from new and old customers, and also warmly welcome your visit:
FAQ:
Q:Can we visit your factory ?
A:Warmly welcome once we have your schedule we will pick you up .
Q:How can we get the offer?
A:Please offer the specification of the product,such as material,size,shape,etc.So we can give the best offer.
Q:Can I get samples?
A:Of course. You can get a sample for free, but you need to provide the freight.
Hot Tags: Q390 Q345 H Section Steel, China Q390 Q345 H Section Steel manufacturers, suppliers, factory