254 SMO Buttweld Fittings are high alloy stainless steel pipe fittings made of UNS S31254 that have good resistance to pitting, crevice corrosion, and chloride stress corrosion cracking. These fittings are used extensively in offshore, marine, desalination, chemical processing and seawater handling applications. ASTM A403 SMO 254 pipe fittings are available in types such as elbows, tees, reducers, stub ends and caps according to ASME B16.9 and ASME B16.28 standards.
254 SMO Buttweld Fittings in Stainless Steel
We are a reliable manufacturer, supplier and exporter of top grade 254 SMO buttweld fittings for demanding industrial applications requiring corrosion resistance and mechanical strength. Our fittings are made of highest quality raw materials and meet international requirements and are widely used in offshore platforms, desalination plants, petrochemical industries, pulp & paper facilities, maritime systems, heat exchangers.
We provide UNS S31254 Buttweld Fittings, ASTM A403 SMO 254 Pipe Fittings and W.Nr. 1.4547 Fittings in seamless, welded, fabricated and customized designs. These fittings show excellent resistance to pitting, chloride stress corrosion cracking and crevice corrosion in severe chloride environments.
We are a well known 254 SMO Buttweld Fittings manufacturer offering fittings in different sizes, schedules and pressure ratings as per ASME, ASTM, MSS and DIN standards. All our goods are inspected for dimensional accuracy, corrosion resistance, durability and long service life before shipping.
Table of Contents
- ➤ What is 254 SMO?
- ➤ Advantages of 254 SMO Pipe Fittings
- ➤ Types of 254 SMO Buttweld Fittings
- ➤ ASTM A403 SMO 254 Pipe Fittings Specification
- ➤ Chemical Composition of UNS S31254 Buttweld Fittings
- ➤ Mechanical Properties of 254 SMO Fittings
- ➤ Dimensions of ASME B16.9 SMO 254 Fittings
- ➤ 254 SMO Buttweld Fittings Weight Chart
- ➤ Applications of 254 SMO Buttweld Fittings
- ➤ 254 SMO Buttweld Fittings Price List
- ➤ Why Choose Us for 254 SMO Pipe Fittings?
What is 254 SMO?
254 SMO is a high-alloy austenitic stainless steel containing high molybdenum and nitrogen content. It is also known as:
- UNS S31254
- W.Nr. 1.4547
- F44 Stainless Steel
- Alloy 254
This alloy was specifically designed for use in seawater and chloride-rich settings where normal stainless steels fail. F44 stainless steel pipe fittings are commonly used in essential industrial applications due to their outstanding corrosion resistance and robustness.
Advantages of 254 SMO Pipe Fittings
- Excellent Corrosion Resistance – These fittings perform exceptionally well in chloride-rich and seawater environments.
- High Mechanical Strength – The alloy maintains structural integrity under high pressure and temperature conditions.
- Superior Weldability – SMO 254 weld fittings can be fabricated and welded easily without compromising corrosion resistance.
- Long Service Life – The alloy offers durability and reduced maintenance costs in aggressive industrial applications.
- Resistance to Pitting & Crevice Corrosion – Ideal for offshore and desalination industries where corrosion failure is common.
Types of 254 SMO Buttweld Fittings
We manufacture and supply a complete range of SMO 254 pipe fittings in various dimensions and schedules.
Available Products
- 254 SMO Long Radius Elbow
- 254 SMO Short Radius Elbow
- SMO 254 Tee
- Equal Tee
- Reducing Tee
- Concentric Reducer
- Eccentric Reducer
- Stub End
- Pipe Cap
- Cross Tee
- Bend
- Nipples
- Lateral Tee
Our ASME B16.9 SMO 254 fittings are suitable for standard piping systems, while ASME B16.28 SMO 254 fittings are preferred for short-radius elbows and return bends.
Applications of Stainless Steel SMO 254 Pipe Fittings
Our SMO 254 Stainless Steel Pipe Fittings are widely used across industries such as:
- Chemical & Petrochemical Processing – Handling acids, alkalis, and chlorides.
- Desalination Plants – For seawater purification systems.
- Pulp & Paper Industry – Resistance to bleaching chemicals.
- Marine Applications – Offshore oil rigs, shipbuilding, and seawater pipelines.
- Food & Pharmaceutical Industry – For hygienic and corrosion-free processing equipment.
- Heat Exchangers & Condensers – High thermal conductivity with excellent corrosion resistance.
ASTM A403 SMO 254 Pipe Fittings Specification
| Specification | Details |
|---|---|
| Material Grade | UNS S31254 / 254 SMO |
| ASTM Standard | ASTM A403 |
| ASME Standards | ASME B16.9, ASME B16.28 |
| DIN / EN | W.Nr. 1.4547 |
| Type | Seamless / Welded / Fabricated |
| Size Range | ½” NB to 48” NB |
| Thickness | SCH 5 to SCH XXS |
| Pressure Rating | SCH 10, SCH 40, SCH 80, SCH 160 |
| Form | Elbow, Tee, Reducer, Stub End, Cap |
| Surface Finish | Pickled, Sand Blasted, Polished |
| End Type | Bevel End |
| Manufacturing Method | Hot Formed / Cold Formed |
Mechanical Properties of 254 SMO Fittings
| Property | Value |
|---|---|
| Tensile Strength | 650 MPa Min |
| Yield Strength | 300 MPa (min) |
| Elongation | 35% Min |
| Hardness | Max 96 HRB |
| Density | 8.0 g/cm³ |
| Melting Range | 1320 – 1390°C |
These excellent mechanical properties make SMO 254 weld fittings suitable for high-pressure and high-temperature operations.
Chemical Composition of UNS S31254 Buttweld Fittings
| Element | Composition (%) |
|---|---|
| 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 |
| Carbon (C) | Max 0.02 |
| Manganese (Mn) | Max 1.0 |
| Silicon (Si) | Max 0.8 |
| Phosphorus (P) | Max 0.03 |
| Sulfur (S) | Max 0.01 |
| Iron (Fe) | Balance |
The high molybdenum content gives stainless steel SMO 254 fittings superior resistance to chloride corrosion and seawater attack.
Dimensions of ASME B16.9 SMO 254 Fittings
90 Degree Elbow Dimensions
| NPS | Center to End (A) |
|---|---|
| 1/2" | 38 mm |
| 3/4" | 38 mm |
| 1" | 38 mm |
| 1 1/2" | 57 mm |
| 2" | 76 mm |
| 3" | 114 mm |
| 4" | 152 mm |
| 6” | 229 mm |
| 8” | 305 mm |
254 SMO Buttweld Fittings Weight Chart
90 Degree Long Radius Elbow Weight Chart
| Size | SCH 40 Weight (Kg) |
|---|---|
| 1/2" | 0.08 |
| 1" | 0.26 |
| 2" | 0.95 |
| 4" | 3.60 |
| 6" | 8.10 |
| 8" | 15.20 |
| 10" | 25.30 |
Applications of 254 SMO Buttweld Fittings
Our 254 SMO fittings are widely used across industries requiring exceptional corrosion resistance and reliability.
Major Industries Served- Offshore Oil & Gas
- Desalination Plants
- Petrochemical Industries
- Marine Engineering
- Heat Exchangers
- Power Generation
- Pulp & Paper Industry
- Chemical Processing Plants
- Fertilizer Plants
- Pharmaceutical Industries
Related Stainless Steel Fittings
We also supply:
- SS 304 Buttweld Fittings
- SS 304L Buttweld Fittings
- SS 304H Buttweld Fittings
- SS 309H Buttweld Fittings
- SS 310 Buttweld Fittings
- SS 6MO Buttweld Fittings
- ASTM A403 WPS31254 Buttweld Fittings
Testing & Quality Assurance
All Alloy 254 buttweld fittings undergo strict inspection and testing procedures to ensure compliance with international standards.
Tests Conducted- PMI Testing
- Hydrostatic Testing
- Radiography Testing
- Ultrasonic Testing
- Intergranular Corrosion Testing
- Flattening Test
- Positive Material Identification
- Dimensional Inspection
We provide mill test certificates, third-party inspection reports, and EN 10204 3.1 certification upon request.
254 SMO Buttweld Fittings Price List
The SMO 254 buttweld fittings price list depends on several factors such as:
Tests Conducted- Size and dimensions
- Thickness and schedule
- Seamless or welded type
- Quantity ordered
- Custom fabrication requirements
- Market price of nickel and molybdenum
For the latest pricing, technical support, or bulk inquiries, contact our sales team.
Why Choose Us for 254 SMO Pipe Fittings?
- Extensive stock availability
- Fast delivery schedules
- International quality standards
- Custom manufacturing support
- Competitive pricing
- Experienced export team
- Third-party inspection support
- Worldwide shipping
As a reliable SMO 254 pipe fittings supplier and 254 SMO fittings stockist, we maintain ready inventory for urgent industrial requirements.
Buy 254 SMO Pipe Fittings
If you are in search of 254 SMO pipe fittings for high-performance and corrosive applications, we provide premium-quality products with complete material traceability and technical support. Our engineering team assists clients in the selection of the appropriate piping components in accordance with their pressure, temperature, and application needs.
Frequently Asked Questions
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