S32760 Super Duplex Stainless Steel Plate for Offshore & Chloride Service

For projects exposed to seawater, chlorides or aggressive chemicals, material selection often determines the maintenance cost over the next 10–20 years. S32760 Super Duplex Stainless Steel Plate combines high mechanical strength with outstanding resistance to localized corrosion, making it a preferred choice for offshore structures, desalination plants and chemical processing equipment. As a reliable China S32760 Super Duplex Stainless Steel Plate Supplier, we supply plates with full material traceability, customized cutting services and global export support.

Product Specifications

Item	Details
Grade	S32760 Super Duplex Stainless Steel
Standards	ASTM A240 / ASME SA240 / EN 10088
Thickness	3–100 mm
Width	1000–2500 mm
Length	2000–12000 mm or Customized
Surface Finish	No.1, Pickled
Processing	Plasma Cutting, Waterjet Cutting, CNC Machining

Element	Content Limit
Carbon (C)	≤0.030
Silicon (Si)	≤1.00
Manganese (Mn)	≤1.00
Phosphorus (P)	≤0.030
Sulfur (S)	≤0.010
Chromium (Cr)	24.00 ~ 26.00
Nickel (Ni)	6.00 ~ 8.00
Molybdenum (Mo)	3.00 ~ 4.00
Nitrogen (N)	0.20 ~ 0.30
Copper (Cu)	0.50 ~ 1.00
Tungsten (W)	0.50 ~ 1.00

Why S32760 Is Selected for Demanding Projects?

Higher Pitting Resistance in Chloride Environments

With approximately 25% chromium, 3–4% molybdenum and added tungsten, S32760 achieves a PREN value above 40, offering excellent resistance to pitting and crevice corrosion in seawater and chloride-rich environments.

Nearly Double the Strength of 316L

The minimum yield strength is around 550 MPa, roughly twice that of conventional austenitic stainless steels. Higher strength allows designers to reduce plate thickness in some applications, helping lower overall structural weight.

Stable Performance in Sour Service

S32760 is widely used in oil & gas production where hydrogen sulfide and chlorides are present. When supplied under the appropriate condition, it can meet NACE MR0175 / ISO 15156 requirements for many sour service applications.

Good Weldability for Fabricated Equipment

The duplex microstructure provides good weldability while maintaining strength and corrosion resistance when proper welding procedures and filler materials are used.