UNS S32750 vs. UNS S32760: Being chromium-nickel-molybdenum stainless steel alloys, these types of steel show very high resistance to corrosion with very high mechanical strength; neither alloy is magnetic. The difference lies in the composition where S32750 is a duplex grade stainless steel containing nearly equal portions of austenite and ferrite. At the same time, S32760 is a super-duplex grade—higher content of chromium and nickel, along with increasing the molybdenum content to give it extra strength. Both alloys are called versatile materials and find essential applications in industries due to their low maintenance cost and resistance to pitting and crevice corrosion—widespread weaknesses of other grades of Stainless Stee
Super Duplex S32750 sheet is constituted mainly of equal amounts of ferrite and austenite, which makes it highly resistant to corrosion and more robust than other classes of stainless-steel alloys. Typical thicknesses range from 0.4mm up to 6mm, and custom thicknesses are available upon request to suit project requirements. Super Duplex S32750 sheet has excellent weldability and excellent machinability; hence, its applications include high-pressure applications such as offshore oil and gas projects, chemical processing, desalination plants, construction of pools/spas, firewalls, etc. There are some form changes to the Super Duplex S32750 sheets during welding; therefore, handling during installation must be careful.
S32750/S32760 Super Duplex Steel Sheets & Plates Equivalent Grades
STANDARD | WNR. |
---|---|
Super Duplex S32750 / S32760 | 1.4410 |
Specification of Super Duplex Steel S32750/S32760 Sheets & Plates
Super Duplex Steel Sheets & Plates Specification : ASTM A240 / ASME SA240
Dimension Standard : JIS, AISI, ASTM, GB, DIN, EN, etc
Width : 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc
Length : 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc
Thickness : 0.3 mm to 120 mm
Form : Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc.
Surface Finishing : Hot rolled plate (HR), Cold rolled sheet (CR),2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, Chequered, embossed, hair line, sand blast, Brush, etching, SATIN (Met with Plastic Coated) etc.
Chemical Alloyion of Super Duplex Steel S32750/S32760 Sheets & Plates
C | Cr | Ni | Mo | N | Others |
---|---|---|---|---|---|
0.020 | 25 | 7 | 4.0 | .27 | S=0.001 |
Mechanical Properties Of Super Duplex Steel S32750/S32760 Sheets & Plates
Ultimate Tensile Strength, ksi | 116 min. |
---|---|
0.2% Offset Yield Strength 0.2%, ksi | 80 min. |
0.1% Offset Yield Strength 0.2%, ksi | 91 min. |
Elongation in 2 inches, % | 15 min. |
Hardness Rockwell C | 32 max. |
Impact Energy, ft.-lbs. | 74 min. |
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