JIS G3463 UNS S31803 Duplex Stainless Steel Tube For Boilers And Heat Exchangers
JIS G3463 UNS S31803 Duplex Stainless Steel Tube For Boilers And Heat Exchangers
Subtitle: Material, Specification, Key Features, Chemical Composition (Table presentation), Mechanical Properties (Table presentation), Steel Grade, Application, Possible Alternative Grades
Duplex stainless steel, as represented by JIS G3463 UNS S31803, offers exceptional properties that make it a preferred choice for a variety of applications, particularly in boilers and heat exchangers. Below, we delve into the material specifications, key features, chemical composition, mechanical properties, steel grade, applications, and potential alternative grades associated with this versatile steel tubing.
Material and Specification
- Material: JIS G3463 UNS S31803 Duplex Stainless Steel
- Specification: JIS G3463
- Grade: UNS S31803
- Tube Type: Seamless or Welded
Key Features
- High strength and durability
- Excellent corrosion resistance
- Good weldability and workability
- Superior resistance to stress corrosion cracking
- Enhanced heat transfer capabilities
Chemical Composition (Table presentation)
| Element | Percentage (%) |
|---|---|
| Chromium (Cr) | 21.0 - 23.0 |
| Nickel (Ni) | 4.50 - 6.50 |
| Molybdenum (Mo) | 2.50 - 3.50 |
| Nitrogen (N) | 0.08 - 0.20 |
| Carbon (C) | 0.030 max |
Mechanical Properties (Table presentation)
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 620 min |
| Yield Strength (0.2% Offset) (MPa) | 450 min |
| Elongation (%) | 25 min |
| Hardness (HBN) | 290 max |
Steel Grade
- UNS S31803 (JIS G3463)
Application
The duplex stainless steel tube UNS S31803 finds application in the following sectors:
- Boilers
- Heat exchangers
- Petrochemical industry
- Chemical processing
- Oil and gas exploration
Possible Alternative Grades
While UNS S31803 is a popular choice, alternative grades that could be considered for similar applications include:
- UNS S32205
- UNS S32750
- UNS S32760
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.
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