654SMO Cold Rolled Stainless Steel Plate High Strength Durability for Offshore and Chemical Applications

654SMO Cold Rolled Stainless Steel Plate High Strength Durability for Offshore and Chemical Applications

654SMO Cold Rolled Stainless Steel Plate - High Strength & Durability for Offshore and Chemical Applications

Product Overview:
654SMO stainless steel plate is a highly corrosion-resistant, austenitic steel designed for use in highly demanding environments, including offshore and chemical applications. This material is well-suited for industries requiring both high strength and excellent durability, making it ideal for use in severe conditions such as marine and chemical processing.

Chemical Composition:

The chemical composition of 654SMO stainless steel is specifically designed for enhanced corrosion resistance and strength. Typical composition is:

• Carbon (C): 0.020% max

• Manganese (Mn): 1.00% max

• Silicon (Si): 0.50% max

• Chromium (Cr): 20.0–22.0%

• Nickel (Ni): 24.0–26.0%

• Molybdenum (Mo): 6.0–7.5%

• Nitrogen (N): 0.10–0.20%

• Phosphorus (P): 0.035% max

• Sulfur (S): 0.030% max

• Iron (Fe): Balance

This unique blend of alloying elements provides superior resistance to pitting and crevice corrosion, making it an excellent choice for environments exposed to chlorides and other aggressive chemicals.

Mechanical Properties:

• Tensile Strength: 85–100 ksi (585–690 MPa)

• Yield Strength: 45–65 ksi (310–450 MPa)

• Elongation: 40% (min)

• Hardness: 90 HRB max

• Modulus of Elasticity: 190,000 MPa (27.5 x 10^6 psi)

• Poisson's Ratio: 0.30

654SMO stainless steel is designed to offer exceptional strength and formability while maintaining high resistance to stress-corrosion cracking and pitting.

Standards:

654SMO stainless steel plate conforms to the following international standards:

• ASTM A240 / A240M

• UNS S32550

• EN 10088-2

• ASME SA240

Key Features:

• High Corrosion Resistance: Excellent resistance to chloride-induced corrosion and acidic environments, particularly in marine, offshore, and chemical industries.

• Superior Strength: Higher strength and better resistance to pitting and crevice corrosion compared to standard stainless steels like 316L.

• Long-Term Durability: Exceptional durability in aggressive chemical environments, including seawater and chemical processing fluids.

• Good Weldability and Fabrication: 654SMO can be easily welded and fabricated, making it suitable for a variety of applications.

Similar Grades / Equivalent Materials:

• 2205 Duplex Stainless Steel (less corrosion-resistant, but cost-effective)

• Alloy 625 (superior for high-temperature environments but more expensive)

• AISI 316L Stainless Steel (lower resistance to corrosion compared to 654SMO)

Other Products:

• 654SMO Welded Pipe

• 654SMO Forged Bar

• 654SMO Plate and Sheet

• 654SMO Fittings

• 654SMO Tubing

These products are available in various sizes and forms to meet the specific needs of your applications.

Applications:

• Offshore Platforms: Used in marine environments where corrosion resistance and high strength are crucial.

• Chemical Processing: Ideal for use in equipment exposed to harsh chemicals, including reactors, heat exchangers, and storage tanks.

• Desalination Plants: Used in seawater desalination systems due to its resistance to seawater corrosion.

• Flue Gas Desulfurization Systems: 654SMO is commonly employed in scrubbers and flue gas systems in power plants.

• Pulp and Paper Industry: Resistance to chloride-containing pulp liquor makes it ideal for pulp and paper mills.

• Petrochemical Industry: Suitable for heat exchangers, pumps, and valves that handle aggressive chemicals and hydrocarbons.

Packaging & Shipping:

• Packaging: Plates are typically packaged in wooden crates or wooden pallets with plastic wrapping or protective film to prevent damage during transport.

• Shipping Options: Global shipping options are available, including air freight, sea freight, and land transportation. Custom packaging and delivery arrangements can be made based on the customer’s requirements.

• Lead Time: Generally, lead time is 4–6 weeks depending on order size and customization needs.

FAQ:

Q: What is the difference between 654SMO and 316L stainless steel?

A: 654SMO offers superior resistance to chloride-induced corrosion and is stronger than 316L, making it a better option for applications in seawater or chemical environments. 316L, however, is a more economical choice for less demanding applications.

Q: Is 654SMO weldable?

A: Yes, 654SMO stainless steel is highly weldable using traditional methods like TIG, MIG, and Stick welding. However, preheating may be necessary for thicker sections to prevent cracking.

Q: Can 654SMO be used in high-temperature environments?

A: 654SMO performs well in moderately high temperatures (up to 600°F or 316°C). For extremely high temperatures, other alloys like Inconel 625 may be a better choice.

Q: How does 654SMO compare to 2205 duplex stainless steel?

A: While both grades offer excellent corrosion resistance, 654SMO provides superior resistance to pitting and crevice corrosion in chloride environments. 2205 duplex is more cost-effective but not as resistant to aggressive chemical conditions.