SMO 254 Stainless Steel
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Stellar Alloys is a reliable manufacturer and supplier of SMO 254 stainless steel products, which are sold to EPC contractors, engineering firms, and industrial clients in India and overseas markets. SMO 254 stainless steel, designed according to UNS S31254 and EN 1.4547, is a super austenitic alloy that has been developed to operate in harsh corrosion conditions where other stainless steels will not perform.
Being an experienced SMO 254 supplier in the field, we offer materials that have controlled chemistry, checked mechanical properties, and complete documentation. SMO 254 is utilized in the chemical processing sector, desalination systems, offshore platforms, marine systems, and pulp and paper sectors, where resistance to corrosion by chloride is important.
Stellar Alloys is oriented towards the provision of a consistent quality of SMO 254 stainless steel with a long service life of its products, so that all Stellar products comply with the current requirements of ASTM, ASME, and EN quality standards.
Table of Contents
- SMO 254 Stainless Steel Grade Overview
- SMO 254 Products Manufactured and Supplied by Stellar Alloys
- Chemical Composition of SMO 254 (UNS S31254)
- Mechanical Properties of SMO 254 Stainless Steel
- Equivalent Grades and Standards
- Plates and Sheets Dimensions and Weight Chart
- Pipes and Tubes Size and Weight Chart
- SMO 254 Price
- Industrial Applications of SMO 254 Stainless Steel
- Why Choose Stellar Alloys as Your SMO 254 Manufacturer and Supplier
- Frequently Asked Questions About SMO 254 Stainless Steel
Available Grades of SMO 254 Steel
SMO 254 Stainless Steel Grade Overview
SMO 254 belongs to the group of super austenitic stainless steel, which has a high amount of chromium, molybdenum, nickel, and nitrogen that provides high levels of pitting, crevice corrosion, and stress corrosion cracking resistance. Being a stockist and supplier of UNS S31254 stainless steel, Stellar Alloys will provide customers with traceable sourcing and quality compliance to demanding industrial applications.
Key advantages:
- Excellent resistance in chloride-rich and seawater environments
- High PREN value above 42
- Good weldability and fabrication characteristics
- Stable mechanical strength under pressure and temperature variations
SMO 254 Products Manufactured and Supplied by Stellar Alloys
As a manufacturer, stockist, and supplier of SMO 254 stainless steel, Stellar Alloys offers the following product forms:
- SMO 254 Plates and Sheets
- SMO 254 Pipes and Tubes
Each product category is supplied as per customer specifications with full inspection documentation.
Chemical Composition of SMO 254 (UNS S31254)
Element | Composition (%) |
Carbon (C) | ≤ 0.02 |
Chromium (Cr) | 19.5 – 20.5 |
Nickel (Ni) | 17.5 – 18.5 |
Molybdenum (Mo) | 6.0 – 6.5 |
Nitrogen (N) | 0.18 – 0.22 |
Copper (Cu) | 0.5 – 1.0 |
Manganese (Mn) | ≤ 1.0 |
Silicon (Si) | ≤ 0.08 |
Phosphorus (P) | ≤ 0.03 |
Sulfur (S) | ≤ 0.01 |
This controlled composition enables Stellar Alloys to supply corrosion-resistant SMO 254 stainless steel suitable for critical service environments.
Mechanical Properties of SMO 254 Stainless Steel
Property | Typical Value |
Tensile Strength | ≥ 650 MPa |
Yield Strength (0.2%) | ≥ 300 MPa |
Elongation | ≥ 35% |
Hardness | ≤ 270 HB |
Density | 8.0 g/cm³ |
Equivalent Grades and Standards
Standard | Grade |
UNS | S31254 |
EN / Werkstoff | 1.4547 |
ASTM / ASME | ASTM A240, ASTM A312 |
Commercial Name | 254 SMO Stainless Steel |
Plates and Sheets Dimensions and Weight Chart
Thickness (mm) | Width (mm) | Length (mm) |
3 – 6 | 1000 – 1524 | 3000 – 6000 |
6 – 10 | 1000 – 2000 | 3000 – 6000 |
10 – 25 | 1000 – 2500 | 3000 – 6000 |
25 – 100 | 1000 – 2500 | 3000 – 12000 |
Pipes and Tubes Size and Weight Chart
OD (mm) | Wall Thickness (mm) | Approx Weight (kg/m) |
25 | 2 | 2.2 |
50 | 3 | 5.5 |
100 | 4 | 12.9 |
150 | 5 | 20 |
200 | 6 | 29 |
250 | 8 | 48 |
300 | 10 | 72 |
SMO 254 Price
Product Form | Indicative Price (INR/kg) |
SMO 254 Plates and Sheets | ₹1,500 – ₹2,500 |
SMO 254 Pipes | ₹1,800 – ₹3,000 |
SMO 254 Tubes | ₹2,000 – ₹3,200 |
Note: Prices vary based on dimensions, quantity, and market conditions.
Industrial Applications of SMO 254 Stainless Steel
As a manufacturer and supplier of SMO 254 stainless steel, Stellar Alloys supports applications such as:
- Chemical processing equipment
- Seawater piping and desalination.
- Oil and Gas offshore facilities.
- Coolers and distillation towers.
- Maritime infrastructure and coastal infrastructure.
Why Choose Stellar Alloys as Your SMO 254 Manufacturer and Supplier
The selection of an appropriate SMO 254 stainless steel material manufacturer and supplier is essential to note, as the material of super austenitic grade is normally applied in such environments where the failure of the material may lead to expensive downtime, safety hazards, or corrosive damage. Stellar Alloys is a reputed brand in the supply of UNS S31254 and EN 1.4547 stainless steel materials and products to engineering firms, EPC contractors, fabricators and industrial purchasers who need high quality and technical dependability.
Stellar Alloys has a history of being a supplier and stockist of SMO 254 stainless steel, and all its products are in line with the required ASTM, ASME, and EN standards, with chemical composition, mechanical properties, and dimensional variation being strictly regulated. Our sourcing method is known to have approved mills and qualified manufacturers, and we are able to provide SMO 254 contents that can be used in critical service environments by chemical processing, desalination, marine, and offshore services.
We realize that SMO 254 has been regularly indicated as an agent in projects that are subjected to high chloride concentrations, acidic media, and aggressive corrosive environments. This is why we are not only interested in the material availability. We also help buyers with technical advice, documentation verification, and application-specific product choice that satisfies engineers and procurement divisions with the appropriate product form of SMO 254 to be used in the long-term performance.
Key Advantages of Choosing Us:
- Approved mill sourcing with full traceability
- EN 10204 3.1 certified material supply
- Custom cut-to-size and machining services
- Domestic and export supply capability
- Technical guidance for material selection
Our focus is on long-term performance, documentation accuracy, and dependable delivery, making Stellar Alloys a preferred SMO 254 supplier for critical applications.
Quality Assurance and Documentation
All SMO 254 products supplied by Stellar Alloys are available with:
- Mill Test Certificates
- Third-party inspection reports
- Chemical and mechanical test records
- Dimensional inspection documentation
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Frequently Asked Questions About SMO 254 Stainless Steel
254 SMO is a super austenitic stainless steel grade that has great pitting, crevice corrosion and stress corrosion cracking resistance. It is known as UNS S31254 and EN 1.4547 and has a large content of chromium, molybdenum and nitrogen. It is rather aggressive in chloride and seawater environments.
The primary distinction between the SMO 254 and SS 316 is the corrosion resistance. SMO 254 has a much greater resistance to corrosion induced by chloride (it contains higher quantities of molybdenum and nitrogen). SS 316 is ideal in mild to moderate conditions whereas SMO 254 is ideal in harsh chemical, marine and desalination conditions.
Hastelloy is a nickel-based alloy, which is mainly used to offer extreme resistance to chemicals, and SMO 254 is a super austenitic stainless steel. SMO 254 offers superior performance on chloride environments at a reduced cost than most nickel alloys, and thus is a material of choice where stainless steel is adequate.
The material equivalents of 254 SMO include UNS S31254 and EN 1.4547. It is commonly referred to as 254 SMO stainless steel across ASTM and European standards. These designations represent the same chemical composition and performance characteristics.
Yes, the stainless steel SMO 254 is very applicable to seawater and high chloride conditions as it has a great value of PREN, which gives high resistance to pitting and crevice corrosion. It is common in desalination facilities, offshore wells, and marine pipelines.
Yes, Stellar Alloys is a production and distribution firm of SMO 254 stainless steel products such as plates, sheets, pipes, and tubes. The materials are provided in full traceability, Mill Test Certificate, and ASTM, ASME, and EN standards.
The stainless steel products of SMO 254 are usually supplied according to ASTM A240 plates and sheets and ASTM A312 pipes and tubes. It is classified as UNS S31254 and EN 1.4547, which guarantees the international standard.