SMO 254 Products
SMO 254 (UNS S31254 / 1.4547) is a super austenitic stainless steel recognized for its outstanding resistance to pitting, crevice corrosion and stress corrosion cracking in chloride-rich environments. At Lakshya Steel, our team leverages decades of metallurgical experience to supply SMO 254 products that meet ASTM, EN, and DIN standards. We work with ISO-certified mills and trusted global partners to ensure consistency, durability, and compliance in every order. Backed by proven industry expertise and client trust, we deliver reliable solutions for marine, chemical and desalination applications worldwide.
SMO 254 Products Manufacturer & Supplier in India
Lakshya International is a trusted SMO 254 manufacturer and supplier in India, offering a comprehensive range of stainless steel SMO 254 products for both domestic and international markets. Our portfolio includes SMO 254 rods, hex bars, square bars, sheets, plates, coils, and customized components tailored to meet specific project requirements.
Every product is manufactured using premium-grade raw materials and advanced technology under strict quality control processes, ensuring compliance with international standards like ASTM and EN. Our SMO 254 stainless steel products are widely used across industries such as marine, oil & gas, chemical processing, power generation, and construction for their unmatched corrosion resistance and long-term reliability.
As one of the leading SMO 254 suppliers in India, Lakshya International is committed to delivering high-quality, certified materials with timely delivery and global export capabilities. Whether you need bulk quantities for large-scale industrial projects or custom-sized solutions, we are your trusted partner for SMO 254 stainless steel products. Contact us today for quotations and technical support.
SMO 254 Products List
Explore our complete SMO 254 Products List, featuring a wide selection of premium stainless steel forms engineered for strength and corrosion resistance. From SMO 254 rods, hex bars, and square bars to precision-rolled sheets, plates, and coils, we provide products that meet global ASTM and EN standards. Each item in our SMO 254 stainless steel products list is manufactured with strict quality control ensuring durability and performance for industries. At Lakshya International, we make it simple to source the right SMO 254 product for every application.
SMO 254 Rod / Bar
SMO 254 Hex Bar
SMO 254 Square Bar
SMO 254 Sheet / Plates / Coil
Stainless Steel SMO254/SMO2507 Components
SMO 254 Chemical Composition
Its high chromium (20%) and molybdenum (6%) content, combined with nickel (18%) and the addition of nitrogen, create a stable alloy with superior strength and corrosion resistance in chloride-rich and acidic environments. The typical chemical composition of SMO 254 stainless steel is:
| Element | Content (%) |
| Chromium (Cr) | 19.5 – 20.5 |
| Nickel (Ni) | 17.5 – 18.5 |
| Molybdenum (Mo) | 6.0 – 6.5 |
| Nitrogen (N) | 0.18 – 0.22 |
| Carbon (C) | ≤ 0.02 |
| Manganese (Mn) | ≤ 1.0 |
| Silicon (Si) | ≤ 0.8 |
| Phosphorus (P) | ≤ 0.03 |
| Sulfur (S) | ≤ 0.01 |
| Iron (Fe) | Balance |
SMO 254 Mechanical Properties
SMO 254 (UNS S31254 / 1.4547) is widely recognized for its high strength, toughness, and superior resistance to stress corrosion cracking in aggressive environments. Its mechanical properties outperform conventional stainless steels like 316L and 317L, making it an excellent choice for demanding industrial applications. The typical mechanical properties of SMO 254 stainless steel are:
| Property | Value |
| Tensile Strength | 650 – 700 MPa |
| Yield Strength (0.2% Offset) | ≥ 300 MPa |
| Elongation | 40 – 50% |
| Hardness (Brinell) | ≤ 210 HB |
| Impact Strength (Charpy V-notch) | High toughness even at sub-zero temperatures |
| Modulus of Elasticity | ~195 GPa |
| Density | 8.0 g/cm³ |
Equivalent Grades of Stainless Steel SMO 254
These equivalent grades of SMO 254 stainless steel help engineers, buyers, and manufacturers identify the material across various international specifications. Knowing these equivalents ensures proper material selection, compliance with project standards, and ease of sourcing in different regions. The common SMO 254 equivalent grades are:
| Standard | Grade / Designation |
| UNS | S31254 |
| EN | 1.4547 |
| ASTM | A240, A276, A312, A269 (depending on product form) |
| AFNOR (France) | Z1 CNDU 20.18.06AZ |
| SS (Sweden) | 2378 |
| BS (UK) | 2562 |
| GOST (Russia) | 07Ch25N6M2T |
| JIS (Japan) | (Comparable grades – custom specifications often applied) |
Why Choose SMO 254 Stainless Steel?
SMO 254 is valued worldwide for its combination of strength, corrosion resistance, and versatility, making it a preferred choice in demanding environments. Unlike conventional stainless steels, SMO 254 (UNS S31254 / 1.4547) delivers outstanding performance in chloride-rich and acidic conditions, ensuring reliability even under extreme service requirements.
Main characteristics of SMO 254 stainless steel include:
- Excellent Corrosion Resistance: Superior protection against pitting, crevice corrosion, and stress corrosion cracking, even in seawater and chemical processing environments.
- High Strength with Toughness: Maintains excellent tensile strength and ductility, providing durability without compromising flexibility.
- Superior Weldability & Fabrication: Can be welded and fabricated using conventional methods, making it suitable for complex designs and structures.
- Extended Service Life: Reduced maintenance and longer operating cycles compared to 316L, 317L, or duplex stainless steels.
- Versatile Applications: Trusted material for desalination plants, offshore platforms, pulp & paper processing, power generation, and heat exchangers.
These unique properties of SMO 254 allow industries to optimize performance while reducing long-term maintenance costs, making it a cost-effective solution for critical applications.
Comparison of SMO 254 Melting Points with Other Stainless Steels
This comparison highlights that while 254 SMO has a slightly lower melting point than duplex grades like 2205, it compensates with superior corrosion resistance and strength in chloride-rich environments making it highly suitable for seawater and aggressive chemical applications.
| Stainless Steel Grade | Melting Point Range (°C) | Melting Point Range (°F) |
| 254 SMO | 1320 – 1390°C | 2408 – 2534°F |
| 316L Stainless Steel | 1370 – 1400°C | 2500 – 2552°F |
| Duplex 2205 | 1385 – 1440°C | 2525 – 2624°F |
| 904L Stainless Steel | 1350 – 1400°C | 2462 – 2552°F |
Frequently Asked Questions About SMO 254 Products
Is SMO 254 weldable?
Yes. SMO 254 offers excellent weldability using conventional welding methods such as TIG or MIG. However, it requires controlled heat input and sometimes over-alloyed filler metals to maintain corrosion resistance. Post-weld cleaning and passivation are recommended to ensure that its superior surface resistance is retained after fabrication.
What industries benefit the most from SMO 254?
Industries dealing with harsh environments benefit the most from SMO 254, such as offshore oil and gas, desalination, chemical processing, and marine engineering. Its high resistance to chloride attack, combined with strength and durability, ensures reliability in equipment like heat exchangers, pumps, pipelines, and pressure vessels.
How does SMO 254 compare to Duplex stainless steels?
Unlike Duplex steels, which have a mixed microstructure, SMO 254 is fully austenitic. It provides higher resistance to localized corrosion, especially pitting, and has greater toughness. While Duplex grades offer higher yield strength, SMO 254 is preferred where maximum corrosion resistance in seawater or acidic environments is the top priority.
What are the key applications of SMO 254?
SMO 254 is widely used in seawater handling systems, chemical processing, desalination plants, heat exchangers, and pulp and paper industries. Its ability to withstand aggressive chloride and acidic environments makes it a preferred material for industries requiring both corrosion resistance and mechanical durability in highly demanding conditions.
