Description of goods:
| Standard | DIN2391, EN10305, DIN17175,JIS G3445, ASTM A519, GB/T 8713... |
| Material | ST37/ST45/ST52/25Mn/27SiMn/E355/SAE1026/STKM13C..... |
| Outer diameter | 20mm-480mm |
| Wall thickness | 3mm-25mm |
| Length | 1-12m, random or fixed, as the clients' requests |
| Technology | High precision Cold drawn/ Cold rolled |
| Heat treatment | BK/BKS/NBK |
| Advantages | 1.Short delivery time |
| 2.Quality assurance | |
| 3.Competitive price | |
| 4.Superior Service |
Chemical composition of Materials:
| Steel Grade | C | Si | Mn | P≤ | S≤ | Cu≤ | Ni≤ | Cr≤ | Mo≤ | V≤ |
| ASTM A106 B | ≤0.3 | / | ≤1.2 | 0.05 | 0.06 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 |
| ST35 | ≤0.18 | 0.15-0.35 | 0.35-0.65 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / |
| ST45 | ≤0.25 | 0.15-0.35 | 0.5-0.8 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / |
| ST52 | ≤0.2 | ≤0.55 | ≤1.5 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / |
| CK45 | 0.42-0.5 | 0.17-0.37 | 0.5-0.8 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / |
Mechanical Properties:
| Steel Grade | Rm MPa | ReH Mpa |
| ST45 | ≥520 | ≥375 |
| ST52(E355) | ≥600 | ≥520 |
| SAE1026 | ≥600 | ≥510 |
| 16Mn | ≥600 | ≥520 |
| 20# | ≥520 | ≥375 |
Tolerance table of Steel tube
The flow chart of the production process: 
Factory & Machine Display:
Product Display:
Products Testing:
Application:
To be used in a hydraulic system, automobile, nested card connector(pipe joints) with matching.
Company Show:
1. Introduction to the Company
JIANNING METALS GROUP was established in 2001, With more than 10 years of import and export experience, Jianning Metals has been an influential exporter in the global metal products market. More than 160 customers from 26 countries and regions have established long-term business relationships with us.
Our main business range is listed as follows:
Carbon Seamless Steel Pipe/tube
Hydraulic cylinder tube(Honed tube)
Hard chrome plated rod/bar/shaft(Piston rod)
Auto exhaust system: (exhaust pipe, muffler tips, carbon steel, and stainless steel mufflers, flexible pipe)
We sincerely welcome friends from all over the world contact us to establish mutually beneficial business relationships
2. Our Company View
3. Our Customers
FAQ
1.Q: How many days of your delivery?
A: The general delivery is 15~35 days according to your quantity.
2.Q: What's your main market?
A: We mainly export to the Middle East and South-Eastern Asia. And this year our products enter into South America.
3.Q: Are you a factory?
A: Yeah, we are.
4.Q: Which countries do you export to?
A: Southeast Asia, southern Asia, Europe, etc.
5.Q: What is the delivery time?
A: If we have stock, we can send goods within 20days. If not, we will deliver goods within 30-45days
6.Q: What is your main payment item?
A: T/T and L/C