Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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ASTM A790 , ASME SA790 S32205 Seamless Duplex Steel Pipes
YUHONG Group, a factory offers ASME SA790 / ASTM A790 S32205 SMLS duplex stainless steel pipes and we sell these pipes with high quality in more than 70 countries up to now.
ASTM A790/ ASME SA790 This specification covers seamless and straight-seam welded ferritic/austenitic steel pipe intended for general corrosive service, with particular emphasis on resistance to stress corrosion cracking. These steels are susceptible to embrittlement if used for prolonged periods at elevated temperatures.
Specifications
| Standard | ASME SA790 / ASTM A790 |
| Name of Material | Duplex Stainless Steel Pipes----Seamless |
| Keywordas | Ferritic and Austentic stainless steel; duplex steel pipes etc. |
| Condition | Annealed |
| Quantity | Feet,metres,or number of lengths |
| Length | Specific or random |
Advantages
ASTM A790 S32205 is a duplex stainless steel, which means it has a combination of both ferritic and austenitic microstructure. This makes it highly resistant to corrosion, especially in harsh environments such as offshore and marine applications.
ASTM A790 S32205 pipes have a high strength-to-weight ratio, making them suitable for use in structural applications where strength is important.
Due to their long service life, resistance to corrosion, and low maintenance requirements, ASTM A790 S32205 pipes are considered cost-effective in the long run.
ASTM A790 S32205 pipes exhibit good mechanical properties such as high tensile strength, excellent toughness, and good impact resistance.
These pipes can withstand a wide range of temperatures, from cryogenic temperatures up to high temperatures and have good weldability, which means they don't compromise their strength and corrosion resistance.
Overall, ASTM A790 S32205 pipes offer a combination of superior corrosion resistance, high strength, good weldability, and wide temperature range, making them a preferred choice for many industrial applications.
Heat Treatment
| UNS | Heat Treating Temperature | Quench |
| S32205 | 1870-2010°F [1020-1100°C] | Rapid cooling in air or water |
Test Required
Chemical Analysis/ Mechanical Properties/ Hardness Test/ Flattening Test/ Tension Test/ FlaringTest
Intergranular Corrosion Test/ Hydrostatic or Nondestructive Electric Test/ Ultrasonic Test,etc
Chemical Composition % S32205 MAX
| C | Mn | P | S | Si | Ni | Cr | Mo | N |
| 0.03 | 2 | 0.03 | 0.02 | 1 | 4.5-6.5 | 22-23 | 3-3.5 | 0.14-0.2 |
Tensile Requirements
| Grade | Yield Strength (Mpa) | Tensile Strength (Mpa) | Elongation (%) |
| S32205 | 450 | 655 | 25 min |
Hardness Requirements
| HBW | HRC |
| 290 max | 30max |
Applications Industries
Oil and Gas
Desalination Plants
Sea Water Equipment
Chemical Processing
Pulp and Paper Industry
Condensers & Boiler & Heat Exchangers
Food Processing- Salt Making,etc.
Energy Field- Nuclear Power Generation,Tidal Power Generation,etc
Environmental Protection Field- Gas Processing,Waste Water Treatment,etc.