ASTM A790 S32750 super duplex stainless steel chemical industry pipe
ASTM A790 S32750 super duplex stainless steel chemical industry pipe
ASTM A790 $32750 is a high-strength, highly corrosion-resistant super duplex stainless steel tube, ideal for corrosive environments in the chemical industry. Its key characteristics include high chromium, nickel, and molybdenum content, excellent resistance to chloride stress corrosion cracking and pitting, and a combination of austenitic and ferritic microstructures. This steel tube is suitable for temperatures up to 600℃F, with a minimum yield strength of 550 MPa (80,000 psi) and a minimum tensile strength of 800 MPa (116,000 psi).
What is ASTM A790 S32750 material?
ASTM A790 UNS S32750 (Duplex 2507) is a super duplex stainless steel containing 25% chromium, 4% molybdenum, and 7% nickel. It is used for seamless and welded ferritic/austenitic stainless steel pipe.
This standard is a standard specification for ferritic austenitic stainless steel tubes used in corrosive environments. ASTM A790 specifies the elements and requirements for the manufacture of seamless and welded tubes, and requires that no filler metal be added during the welding of duplex and super duplex steel tubes.
When producing steel tubes using UNS S31803, S32205, S32750, S32760, and S32520 duplex steel materials, corrosion testing should be performed as an adjunct. ASTM A790 covers steel tube diameters ranging from 1/8 inch (10.29 mm) to 30 inches (762.0 mm) and wall thicknesses ranging from 1.24 mm to 12.7 mm. Based on the ANSI B36.10 steel tube standard, we can supply steel tubes with larger diameters according to the A790 standard.
What is ASTM A790 S32750 material?
S32750 is a super duplex stainless steel, commercially known as 2507. The microstructure of super duplex steel consists of approximately 50% austenite and 50% ferrite, but its alloying℃is much higher than that of standard duplex steels such as S31803, especially in terms of chromium, molybdenum, and nitrogen content, resulting in higher strength and better corrosion resistance.
ASTM A790 S32750 Super Duplex Stainless Steel Pipe Chemical Composition
| C | P | S | N | ||||||
| 2205 (UNS S32205) | 0.030 | 2.00 | 1.00 | 0.030 | 0.020 | 22.0-23.0 | 3.0-3.5 | 4.5-6.5 | 0.14-0.20 |
ASTM A790 S32750 Super Duplex Stainless Steel Pipe Mechanical Properties
0.2% Proof |
(% in 50mm) min |
||||
| UNS S32205 / 2205 | 621 | 448 | 25 | 31 max | 293 max |
ASTM A790 S32750 Duplex Stainless Steel Pipe Applications
1. Chemical processing, transportation, and storage.
2. Oil and gas exploration and offshore drilling platforms.
3. Oil and gas refining.
4. Marine environments.
5. Pollution control equipment.
6. Pulp and paper manufacturing.
7. Chemical plants.
Standards: Compliant with ASTM A790 and ASME SA790 standards.
Forms: Available in seamless and welded forms, including EFW, ERW, and other welded methods.
Sizes: Available in a wide range of sizes from small to large, as well as various wall thicknesses and grades (e.g., SCH10S, SCH40S, SCH80).
Ends: Available in flat, beveled, threaded, or screw-on ends.
Surface Finishes: Available in polished, AP, BA, NO.1, NO.4, 2B, and mirror finishes.
Lengths: Available in standard lengths, fixed lengths, single random lengths, and double random lengths.
Markings: Markings include standard, grade, outer diameter, wall thickness, length, and furnace number.
Gnee Steel specializes in the production of a wide range of stainless steel products. Gnee Steel's product packaging includes: Steel Strapping: Pipes with an outer diameter of 3 inches or less are typically strapped together with polypropylene film to prevent rust during ocean shipping, and then secured with steel strapping. Wooden Cases/Crates: Pipes are typically packaged in wooden cases or crates to protect the pipes during transportation, especially those that are longer or have larger diameters. Seaworthy Export Packaging: Suppliers typically use standard seaworthy export packaging methods, which may include a variety of materials and techniques to protect the pipes during transportation. Tarpaulin Packaging: This prevents rain, seawater, and other external factors from penetrating the export crates during transportation. Gnee Steel specializes in the production and sale of alloy materials. Gnee Steel's products are widely used in the aerospace, chemical, power, automotive, and nuclear energy sectors, and we can provide customized alloy material solutions based on customer needs. For alloy material pricing or customized alloy material solutions, please contact us for a quote: ru@gneesteelgroup.com
