Q345 20# National Standard Carbon Steel Tube Seamless 40# Metal Pipe SCH80 For Building
Q345 20# National Standard Carbon Steel Tube Seamless 40# Metal Pipe SCH80 For Building
AISI 1020 Steel is a low hardenability and low tensile carbon steel. it offers excellent mechanical and chemical properties like high strength ductility, weldability, and high corrosion resistance. it is normally used in turned and polished or cold drawn condition.
Due to its low carbon content, it is resistant to induction hardening or flame hardening. it will not respond to nitriding due to lack of alloying elements. However, carburization is possible in order to obtain case hardness more than Rc65 for smaller sections that reduce with an increase in section size.
AISI 1020 steel can be largely utilized in all industrial sectors in order to enhance weldability or machinability properties. it is used in a variety of applications due to its cold drew or turned and polished finish property.
| Product Name | MS pipe carbon steel pipe/hollow section steel pipe |
| Standard | GB/T6728-2002,GB/T6725-2002, GBT3094-2000,JG 178-2005, ASTM A500 JIS G3466,EN10210 |
| Grade | Q195, Q235, Q345, S235JR, St37-2 |
| Diameter | 10x10mm to 600x600mm or as required |
| Thickness | 1-30mm or customizable |
| Length | 3-12m or as Required |
| Surface Treatment | Oiled, black painted or hot dip galvanized |
| Packing | Strapped with steel strips to prevent damage from transportation,wrapped by PP cloth, |
| Applications | Structure pipe in constructions, low-pressur fluid service,bridge,highway,windows of model steel door, fence, heating facilities etc. |
| Payment Items | T/T or 100% L/C at sight |
| Deliver Conditions | Bulk vessel or container |
| Deliver Time | In about 15-30 days upon receipt of L/C or T/T |
Product Details
Chemical Composition
| Standard | Grade | C | Si | Mn | s | p | Cr |
| GB/T 699 GB/T 3639 GB3077 GB/T1591 GB/T 8163-2018 |
10# | 0.07~0.13 | 0.17~0.37 | 0.35~0.65 | ≤0.035 | ≤0.035 | |
| 20# | 0.17~0.23 | 0.17~0.37 | 0.35~0.65 | ≤0.035 | ≤0.035 | ||
| 35# | 0.32~0.39 | 0.17~0.37 | 0.35~0.65 | ≤0.035 | ≤0.035 | ||
| 45# | 0.42~0.50 | 0.17~0.37 | 0.50~0.80 | ≤0.035 | ≤0.035 | ||
| 40Cr | 0.37~0.44 | 0.17~0.37 | 0.50~0.80 | ≤0.035 | ≤0.035 | 0.08~1.10 | |
| 25Mn | 0.22~0.29 | 0.17~0.37 | 0.70~1.00 | ≤0.035 | ≤0.035 | ≤0.25 | |
| Q345B | ≤0.20 | ≤o.50 | ≤1.7 | ≤0.035 | ≤0.035 | ≤0.3 | |
| 37Mn5 | 0.30~0.39 | 0.15~0.30 | 1.20~1.50 | ≤0.015 | ≤0.020 |
Process
Packaging & Shipping
Certification
After-sale choose
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FAQ
Q: Do you provide samples? How can I get a sample to check your quality? Is it free or extra?
A: Free samples are available for your checking and testing. And to get free samples, you need to send us you detailed receiving address (including post code) and your DHL/FedEx/UPS account for collecting samples, courier cost will be paid in your side.
Q: How is the quality of your products?
A: Our products are manufactured strictly according to national and international standard, and we take a test before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Q: Are you factory or trader?
A: 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.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.