ERW Q345 Hollow Carbon Steel Square Tube Hot Rolled 0.3mm Wall Thickness
ERW Q345 Hollow Carbon Steel Square Tube Hot Rolled 0.3mm Wall Thickness
Product Description
1. Carbon steel can obtain higher hardness and better wear resistance after heat treatment.
2, carbon steel in the annealing state of the hardness is very moderate, and has good machinability.
3, carbon steel raw materials are very common, easy to obtain, the production cost is relatively low.
Product Details
| Product name | Carbon steel square pipe |
| Thickness | 0.3-30 mm |
| Outer diameter | 20-1000 mm |
| Shape | Square section |
| Certificate | ISO9001:2008 |
| Application | Fluid pipe |
| Product type | SS400,A53-A369,Q235,Q345 |
| Standard | ASTM DIN GB ISO JIS BA ANSI |
| Technics | ERW |
| Sales mode | Factory direct sales |
| MOQ | 25TON |
| Place of Origin | Wuxi,China |
| Delivery terms | FOB, CIF, CFR,EXW |
| Delivery condition | Sea transportation |
| Package |
Standard export waterproof package, suit for all kinds of transport, or as required
|
Chemical composition
|
Standard
|
Grade
|
C
|
Si | Mn | P | S | Cr | Ni | Cu | Mo | V | Al |
|
GB/T18984
-2003
|
16MnDG
|
0.12-0.20
|
0.20-0.55
|
1.20-1.60
|
≤0.025
|
≤0.025
|
--
|
--
|
--
|
--
|
--
|
--
|
|
10MnDG
|
≤0.13
|
0.17-0.37
|
≤1.35
|
≤0.025
|
≤0.025
|
--
|
--
|
--
|
--
|
≤0.07
|
--
|
|
|
09DG
|
≤0.12
|
0.17-0.37
|
≤0.95
|
≤0.025
|
≤0.025
|
--
|
--
|
--
|
--
|
≤0.07
|
--
|
|
|
09Mn2VDG
|
≤0.12
|
0.17-0.37
|
≤1.85
|
≤0.025
|
≤0.025
|
--
|
--
|
--
|
--
|
≤0.12
|
--
|
|
|
06Ni3MoDG
|
≤0.08
|
0.17-0.37
|
≤0.85
|
≤0.025
|
≤0.025
|
--
|
2.5-3.7
|
--
|
0.15-0.30
|
≤0.05
|
--
|
|
|
ASTM A333
|
Grade1
|
≤0.30
|
--
|
0.40-1.06
|
≤0.025
|
≤0.025
|
--
|
--
|
--
|
--
|
--
|
--
|
|
Grade3
|
≤0.19
|
0.18-0.37
|
0.31-0.64
|
≤0.025
|
≤0.025
|
--
|
3.18-3.82
|
--
|
--
|
--
|
--
|
|
|
Grade4
|
≤0.12
|
0.18-0.37
|
0.50-1.05
|
≤0.025
|
≤0.025
|
0.44-1.01
|
0.47-0.98
|
0.40-0.75
|
--
|
--
|
0.04-0.30
|
|
|
Grade6
|
≤0.30
|
≥0.10
|
0.29-1.06
|
≤0.025
|
≤0.025
|
--
|
--
|
--
|
--
|
--
|
--
|
|
|
Grade7
|
≤0.19
|
0.13-0.32
|
≤0.90
|
≤0.025
|
≤0.025
|
--
|
2.03-2.57
|
--
|
--
|
--
|
--
|
|
|
Grade8
|
≤0.13
|
0.13-0.32
|
≤0.90
|
≤0.025
|
≤0.025
|
--
|
8.40-9.60
|
--
|
--
|
--
|
--
|
|
|
Grade9
|
≤0.20
|
--
|
0.40-1.06
|
≤0.025
|
≤0.025
|
--
|
1.60-2.24
|
0.75-1.25
|
--
|
--
|
--
|
|
|
Grade10
|
≤0.20
|
0.10-0.35
|
1.15-1.50
|
≤0.030
|
≤0.015
|
≤0.15
|
≤0.25
|
≤0.015
|
≤0.50
|
≤0.12
|
≤0.06
|
|
|
Grade11
|
≤0.10
|
≤0.035
|
≤0.60
|
≤0.025
|
≤0.025
|
≤0.50
|
35.0-37.0
|
--
|
≤0.50
|
--
|
--
|
Package
Certification
FAQ
1. What are your company's main products?
Our main products are stainless steel pipe and plate, seamless steel pipe, galvanized steel pipe,petroleum pipe, helical welded pipe, wear resistant steel plate, cold rolled/hot rolled coil steel, Angle steel, I-beam steel, H-beam steel, channel steel, etc.
2. Can I get some samples?
Yes, we glad to provide free samples for you.
3. Can we visit your factory?
Sure, we welcome you to visit our factory, check our production lines and know more about our strength and quality.
4: Are you factory or trader?
Our company has been manufacturing and selling steel products for many years since 2009. We've gained our Export Right and become an integrated company of industry and trade in order to satisfy buyer's multi-request on different material and products.
5. How long is your delivery time?
Generally it is 7 days if we have the exact goods in our stock. If not, it will take around 15-20 days to get goods ready for delivery.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.