Seamless Steel Tubes Cold Drawn Carbon And Carbon Manganese Steel Pipes GB/T 5312 For Ships
Material and Specification
| Material | Specification |
| Steel | Carbon and Carbon Manganese Steel |
| Standard | GB/T 5312 |
Chemical Composition
| Element | Composition Range |
| Carbon (C) | 0.12% - 0.20% |
| Manganese (Mn) | 0.50% - 0.90% |
| Silicon (Si) | 0.17% - 0.37% |
| Sulfur (S) | 0.035% maximum |
| Phosphorus (P) | 0.035% maximum |
Mechanical Properties
| Property | Minimum Value |
| Tensile Strength | 420 MPa |
| Yield Strength | 245 MPa |
| Elongation | 25% |
| Impact Toughness | 34 Joules |
| Hardness (HB) | 130 maximum |
Steel Grade
The steel tubes conforming to GB/T 5312 are available in various steel grades, including:
- Grade 20G
- Grade 20MnG
- Grade 25MnG
- Grade 15MoG
- Grade 20MoG
- Grade 12CrMoG
- Grade 15CrMoG
- Grade 12Cr2MoG
- Grade 12CrMoVG
- Grade 10Cr9Mo1VNbN
Application
Seamless steel tubes made of carbon and carbon manganese steel, following the specifications of GB/T 5312, are primarily used in shipbuilding applications. These tubes are commonly employed in ship construction, repair, and maintenance, where they play a vital role in various systems, such as:
- Piping systems for water, steam, and fuel
- Hydraulic systems
- Air and gas systems
- Heat exchangers
- Boiler tubes
- Structural components
Haiyan Sanxin Steel Pipe Factory is a leading manufacturer of steel pipes in China. Located in a region with excellent geographical advantages, the factory is situated close to the Zhoushan Port and Ningbo Port.
Our factory covers an area of more than 25,000 square meters and has been in the steel pipe manufacturing business for 20 years. Over this period, we have accumulated a wealth of professional experience, which has helped us establish ourselves as a trusted name in the industry.
At our factory, we specialize in the production of various types of steel pipes, including stainless steel pipe, carbon steel pipe, copper pipe, steel pipe,seamless steel pipe and welded pipe. Our expertise in this field is evident from the 12 patents that we hold, which demonstrate our commitment to innovation and excellence.
Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
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