ASTM A789 ASMESA789 DUPLEX STEEL SEAMLESS TUBE MATERIAL S31803, S32205, S32750, S32760, S31254 FOR HEAT EXCHANGER
YUHONG GROUP deal with Austenitic Stainless Steel, Nickel Alloy Steel(Hastelloy , Monel, Inconel, Incoloy ) seamless and welded pipe and tube already more than 25 years, every year sell more than 80000 tons of steel pipe and tube. Our client already cover more than 85 countries, Like Italy, UK, Gernmany, USA, Canada, Chile, Colombia, Saudi Arabia, Korea, Singapore, Austrial, Poland, France , ....And our group branch company and factory have been already approved by :ABS, DNV, GL, BV, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9001-2008, ISO 14001-2004.
| Duplex Stainless Steel have a structure that contains both ferrite and austenite. Duplex alloys have higher strength and better stress corrosion cracking resistance than most austenitic alloys and greater toughness than ferritic alloys, especially at low temperatures. The corrosion resistance of duplex alloys depends primarily on their composition, especially the amount of chromium, molybdenum, and nitrogen they contain. |
| Standard: ASTM/ASME A/SA789, A/SA790, A/SA928, DIN17456/17458, EN10216-5. After negotiation, we can supply pipe with customer's special requirement. | Material Grade: Chemical Composition | UNS | EN | DIN | C % | Cr% | Ni% | Mo% | N% | Other % | | S31803 | 1.4462 | X2CrNiMoN22-5-3 | 0.030max | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 | / | | S32205 | 1.4462 | X2CrNiMoN22-5-3 | 0.030max | 22.0-23.0 | 4.5-6.5 | 3.0-3.5 | 0.14-0.20 | / | | S32101 | 1.4162 | | 0.040max | 21.0-22.0 | 1.35-1.70 | 0.10-0.80 | 0.20-0.25 | Cu 0.10-0.80 | | S32304 | | | 0.030max | 21.5-24.5 | 3.0-5.5 | 0.05-0.60 | 0.15-0.20 | Cu 0.05-0.60 | | S32750 | 1.4410 | X2CrNiMoN25-7-4 | 0.030max | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.24-0.32 | Cu 0.50max | | S32760 | | | 0.050max | 24.0-26.0 | 6.0-8.0 | 3.0-4.0 | 0.20-0.30 | Cu 0.50-1.00 | Mechanical Property: | UNS | Tensile Strength
Min, Mpa | Yield Strength
Min, Mpa | Elongation in 2 in Or 50mm Min, % | Hardness Max,
HRC | | S31803 | 620 | 450 | 25 | 30 | | S32205 | 655 | 485 | 25 | 30 | | S32101 | 700 | 530 | 30 | 30 | | S32304 | 690 | 450 | 25 | 30 | | S32750 | 800 | 550 | 15 | 32 | | S32760 | 750 | 550 | 25 | 32 | |
Heat Treatment
| UNS Designation | Temperature | Quench |
| S31803 | 1870-2010 °F [1020-1100°C] | Rapid cooling in air or water |
| S32205 | 1870-2010 °F [1020-1100°C] | Rapid cooling in air or water |
| S31500 | 1800-1900 °F [980-1040°C] | Rapid cooling in air or water |
| S32550 | 1900 °F [1040°C] min. | Rapid cooling in air or water |
| S31200 | 1920-2010 °F [1050-1100°C] | Rapid cooling in water |
| S31260 | 1870-2010 °F [1020-1100°C] | Rapid cooling in water |
| S32001 | 1800-1950 °F [982-1066°C] | Rapid cooling in air or water |
| S32003 | 1850-2050 °F [1010-1120°C] | Rapid cooling in air or water |
| S32101 | 1870 °F min | Quenched in water or Rapidly cooling in other means |
| S32202 | 1870-1975 °F [1020-1080°C] | Rapid cooling in air or water |
| S32506 | 1870-2050 °F [1020-1120°C] | Rapid cooling in air or water |
| S32304 | 1700-1920 °F [925-1050°C] | Rapid cooling in air or water |
| S32750 | 1880-2060 °F [1025-1125°C] | Rapid cooling in air or water |
| S32760 | 2010-2085 °F [1100-1140°C] | Rapid cooling in air or water |
| S32950 | 1820-1880 °F [990-1025°C] | Rapid cooling in water |
| S32520 | 1975-2050 °F [1080-1120°C] | Rapid cooling in air or water |
Duplex Steel Seamless Tube Features:
1.Superior resistance to general and local corrosion, especially to stress corrosion, pitting corrosion, crevice corrosion, corrosion fatigue and abrasion & corrosion.
2.Good weldability
3.Good mechanical properties
4.Excellent intergranular corrosion resistance
5.High cost-effectiveness, long life time
Application :
Widely used in petroleum, chemical, medical, food, light industry, home decoration, mechanical instrumentation, and other industrial transmission pipelines and mechanical structural components, etc.
Product Tags:
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ASTM A789 ASMESA789 SUPER DUPLEX STEEL SEAMLESS TUBE MATERIAL S31803, S32205, S32750, S32760, S31254 For Heat Exchanger Images
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