654SMO Super Austenitic Stainless Steel Plate High Ni Cr Mo Content For Unrivaled Durability

Price Negotiable

Price: 5000 - 7200 USD/Ton

MOQ: 500 kgs

Delivery Time: 5 - 12 days based on the quantity

Brand: TISCO BAOSTEEL

Product Description

654SMO Super Austenitic Stainless Steel Plate High Ni, Cr,Mo Content for Unrivaled Durability

Products Specification

Products Name	654SMO Stainless Steel Plate
Main Grades	Stainless Steel J1, J2, J4, 201, 202, 301, 304, 304H, 304L, 309, 309S, 310, 310S, 316, 316L, 316TI, 321, 321H, 347, 409, 410, 410S, 420, 430, 441, 904L,630,631,254SMO,654SMO,253MA,2205,2507.etc
Thickness	1.0 - 80.0mm
Width	1250mm,1500mm ,1800mm,2000mm, or custom other size as request
Length	2000mm, 2440mm, 3000mm, 5800mm, 6000mm, AS PER CUSTOMER’S REQUIREMENT
Type of Material	Laser Cutting
Form	Plate / coil
Test Certificate	Yes.
Finish	NO.1, 2B, 2D, 2H, 2R, No.4, HAIRLINE, SCOTCH BRITE, SATIN FINISH, NO.8, BA.
Brand	TISCO, LISCO,BAOSTEEL , POSCO, JISCO

654 SMO (Super Austenitic Stainless Steel) plate is a high-performance alloy renowned for its exceptional corrosion resistance and mechanical properties. Here’s a detailed introduction:

Chemical Composition

654 SMO contains a unique blend of elements:

High chromium (24–26%) and molybdenum (7–8%) for superior resistance to pitting and crevice corrosion.
Nickel (23–25%) to enhance ductility and stability.
Copper (0.5–1.0%) and nitrogen (0.4–0.5%) to improve strength and resistance to chloride-induced stress corrosion cracking (SCC).
Low carbon content (<0.02%) to prevent sensitization.

Key Properties

Corrosion Resistance:
- Highly resistant to harsh environments, including seawater, chlorides, and acids (e.g., sulfuric and phosphoric acids).
- Offers a Critical Pitting Temperature (CPT) exceeding 60°C, far higher than standard stainless steels like 316L.
Mechanical Strength:
- Yield strength ≥ 430 MPa and tensile strength ≥ 700 MPa, making it suitable for high-pressure applications.
- Excellent ductility and impact resistance even at low temperatures.
Heat Resistance:
- Maintains stability in temperatures up to 300°C, with minimal carbide precipitation.

Manufacturing and Fabrication

Produced via vacuum induction melting (VIM) and electroslag remelting (ESR) for purity.
Machinable with proper tools and lubrication, though its high strength may require increased cutting forces.
Weldable using techniques like TIG or MIG, with matching filler metals (e.g., ERNiCrMo-3) to maintain corrosion resistance.

Applications

Marine Engineering: Offshore platforms, seawater pipelines, and desalination equipment.
Chemical/Petrochemical Industry: Reactors, heat exchangers, and vessels handling corrosive media.
Pharmaceuticals and Food Processing: Equipment requiring high hygiene and corrosion resistance.
Oil and Gas: Subsea components and high-chloride environments.

Standards and Specifications

Complies with ASTM A240, EN 10088-2, and ASME SA-240.
Common designations: UNS S32654, 1.4652.

Advantages Over Other Alloys

Outperforms 904L and 254 SMO in extreme chloride conditions.
Reduces maintenance and replacement costs in aggressive environments.
Suitable for applications where weight and strength are critical (e.g., lightweight structures).

654 SMO plate is a premium material chosen for projects demanding unparalleled corrosion resistance and durability in the most challenging environments. Its unique composition makes it a staple in industries where failure due to corrosion is not an option.