ASTM A790 S31200 Seamless Ferritic Austenitic Stainless Steel Pipe For General Purpose
ASTM A790 S31200 S31260 S31500 S31803 S32003 Seamless Ferritic Austenitic Stainless Steel Pipe For General Purpose
Material and Specification
ASTM A790 covers seamless and straight-seam welded ferritic/austenitic stainless steel pipe intended for general-purpose applications. This specification includes five grades of stainless steel pipes: S31200, S31260, S31500, S31803, and S32003.
Key Features
- Seamless and straight-seam welded construction
- Ferritic/austenitic stainless steel composition
- Suitable for general-purpose applications
- High corrosion resistance
- Good mechanical properties
- Excellent weldability
- Superior toughness
- High strength
Chemical Composition (Table Presentation)
| Element | S31200 | S31260 | S31500 | S31803 | S32003 |
|---|---|---|---|---|---|
| Carbon | 0.03 max | 0.03 max | 0.03 max | 0.03 max | 0.03 max |
| Manganese | 2.00 max | 2.00 max | 2.00 max | 2.00 max | 2.00 max |
| Phosphorus | 0.03 max | 0.03 max | 0.03 max | 0.03 max | 0.03 max |
| Sulfur | 0.03 max | 0.03 max | 0.03 max | 0.03 max | 0.03 max |
| Silicon | 1.00 max | 1.00 max | 1.00 max | 1.00 max | 1.00 max |
| Nickel | 4.50-6.50 | 6.00-8.00 | 3.00-4.50 | 4.50-6.50 | 3.00-4.50 |
| Chromium | 24.0-26.0 | 23.0-26.0 | 18.0-19.0 | 21.0-23.0 | 19.0-21.0 |
| Molybdenum | 0.50-1.00 | 0.50-1.00 | 2.50-3.00 | 2.50-3.50 | 2.00-3.00 |
| Nitrogen | 0.08-0.20 | 0.08-0.20 | 0.05-0.10 | 0.08-0.20 | 0.05-0.10 |
Mechanical Properties (Table Presentation)
| Property | S31200 | S31260 | S31500 | S31803 | S32003 |
|---|---|---|---|---|---|
| Tensile Strength (MPa) | 620 min | 650 min | 630 min | 620 min | 620 min |
| Yield Strength (MPa) | 450 min | 450 min | 450 min | 450 min | 450 min |
| Elongation (%) | 25 min | 25 min | 25 min | 25 min | 25 min |
| Hardness (Brinell) | 290 max | 290 max | 290 max | 290 max | 290 max |
Steel Grade
The steel grades covered by ASTM A790 are as follows:
- S31200
- S31260
- S31500
- S31803
- S32003
Application
ASTM A790 stainless steel pipes are widely used in various general-purpose applications, including:
- Chemical processing
- Petrochemical industry
- Oil and gas exploration and production
- Food processing
- Pharmaceutical industry
- Water treatment
- Heat exchangers
- Pulp and paper industry
- Desalination plants
- Architectural applications
Possible Alternative Grades
While ASTM A790 provides a range of stainless steel grades suitable for general-purpose applications, there are alternative grades available depending on specific requirements. Some possible alternative grades include:
- ASTM A312 TP304/304L/304H
- ASTM A312 TP316/316L/316H
- ASTM A312 TP321/321H
- ASTM A312 TP347/347H
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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