254 SMO Cross
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- 254 SMO Cross
| Parameter | 254 SMO Cross Details |
|---|---|
| Product Name | 254 SMO Cross |
| Material Grade | 254 SMO / 6Mo Stainless Steel |
| UNS Number | S31254 |
| Werkstoff Number | 1.4547 |
| Alloy Family | Super-Austenitic Stainless Steel |
| Product Standard | ASTM A403 / ASME SA403 |
| Dimensional Standard | ASME B16.9 |
| Cross Configuration | Equal Cross / Reducing Cross |
| Branch Arrangement | Four-Way / Reduced Branch |
| Nominal Size | 1/2″ to 48″ |
| Construction | Seamless / Welded / Fabricated |
| Wall Thickness | SCH 5S–SCH 160 / XXS / Custom |
| End Connection | Butt Weld |
| End Preparation | Beveled / Plain / Customized |
| Heat Treatment | Solution Annealed |
| Surface Finish | Mill / Pickled / Passivated / Polished |
| Chromium | Approx. 19.5–20.5% |
| Nickel | Approx. 17.5–18.5% |
| Molybdenum | Approx. 6.0–6.5% |
| Nitrogen | Approx. 0.18–0.22% |
| Copper | Approx. 0.5–1.0% |
| Carbon | 0.020% max |
| Tensile Strength | Approx. 650 MPa minimum |
| Yield Strength | Approx. 300 MPa minimum |
| Elongation | Approx. 35% minimum |
| Density | Approx. 8.0 g/cm³ |
| PREN | Typically >40 |
| Pitting Resistance | Excellent |
| Crevice Corrosion Resistance | Excellent |
| Chloride SCC Resistance | Excellent |
| Weldability | Good with controlled welding procedures |
| Inspection | PMI / Visual / Dimensional / Mechanical / NDT |
| Certification | EN 10204 3.1 / 3.2 |
| Traceability | Heat Number / Batch Identification |
| Customization | Branch sizes, thickness, dimensions and special geometry |
| Supply | Domestic & Worldwide Export |
| Applications | Desalination, Offshore, Marine, Chemical Processing, Pulp & Paper, Flue Gas Scrubbing and Process Piping |
254 SMO Cross – Equal & Reducing Sizes
| Run Size | Branch Size | Cross Type | Run OD | Branch OD |
|---|---|---|---|---|
| 1/2″ | 1/2″ | Equal Cross | 21.34 mm | 21.34 mm |
| 3/4″ | 3/4″ | Equal Cross | 26.67 mm | 26.67 mm |
| 1″ | 1″ | Equal Cross | 33.40 mm | 33.40 mm |
| 1-1/4″ | 1-1/4″ | Equal Cross | 42.16 mm | 42.16 mm |
| 1-1/2″ | 1-1/2″ | Equal Cross | 48.26 mm | 48.26 mm |
| 2″ | 2″ | Equal Cross | 60.33 mm | 60.33 mm |
| 2-1/2″ | 2-1/2″ | Equal Cross | 73.03 mm | 73.03 mm |
| 3″ | 3″ | Equal Cross | 88.90 mm | 88.90 mm |
| 4″ | 4″ | Equal Cross | 114.30 mm | 114.30 mm |
| 6″ | 6″ | Equal Cross | 168.28 mm | 168.28 mm |
| 8″ | 8″ | Equal Cross | 219.08 mm | 219.08 mm |
| 10″ | 10″ | Equal Cross | 273.05 mm | 273.05 mm |
| 12″ | 12″ | Equal Cross | 323.85 mm | 323.85 mm |
| 2″ | 1″ | Reducing Cross | 60.33 mm | 33.40 mm |
| 3″ | 2″ | Reducing Cross | 88.90 mm | 60.33 mm |
| 4″ | 2″ | Reducing Cross | 114.30 mm | 60.33 mm |
| 4″ | 3″ | Reducing Cross | 114.30 mm | 88.90 mm |
| 6″ | 4″ | Reducing Cross | 168.28 mm | 114.30 mm |
| 8″ | 6″ | Reducing Cross | 219.08 mm | 168.28 mm |
| 10″ | 8″ | Reducing Cross | 273.05 mm | 219.08 mm |
| 12″ | 10″ | Reducing Cross | 323.85 mm | 273.05 mm |
254 SMO Cross – Size & Schedule Range
| NPS | Outside Diameter | Typical Schedule | Available Configuration |
|---|---|---|---|
| 1/2″ | 21.34 mm | SCH 5S–XXS | Equal / Reducing |
| 3/4″ | 26.67 mm | SCH 5S–XXS | Equal / Reducing |
| 1″ | 33.40 mm | SCH 5S–XXS | Equal / Reducing |
| 1-1/4″ | 42.16 mm | SCH 5S–XXS | Equal / Reducing |
| 1-1/2″ | 48.26 mm | SCH 5S–XXS | Equal / Reducing |
| 2″ | 60.33 mm | SCH 5S–XXS | Equal / Reducing |
| 2-1/2″ | 73.03 mm | SCH 5S–XXS | Equal / Reducing |
| 3″ | 88.90 mm | SCH 5S–XXS | Equal / Reducing |
| 4″ | 114.30 mm | SCH 5S–XXS | Equal / Reducing |
| 6″ | 168.28 mm | SCH 5S–XXS | Equal / Reducing |
| 8″ | 219.08 mm | SCH 5S–XXS | Equal / Reducing |
| 10″ | 273.05 mm | SCH 5S–XXS | Equal / Reducing |
| 12″ | 323.85 mm | SCH 5S–XXS | Equal / Reducing |
| 14″ | 355.60 mm | SCH 5S–XXS | Equal / Reducing |
| 16″ | 406.40 mm | SCH 5S–XXS | Equal / Reducing |
| 18″ | 457.20 mm | SCH 5S–XXS | Equal / Reducing |
| 20″ | 508.00 mm | SCH 5S–XXS | Equal / Reducing |
| 24″ | 609.60 mm | SCH 5S–XXS | Equal / Reducing |
| 30″–48″ | 762–1219.20 mm | As Required | Equal / Reducing |
254 SMO Cross – Manufacturing & Quality Details
| Feature | Available Options / Details |
|---|---|
| Cross Pattern | Equal / Reducing |
| Production Process | Hot Formed / Cold Formed / Seamless / Welded |
| Size Range | 1/2″–48″ |
| Branch Size | Equal / Reduced / Custom |
| Wall Thickness | Standard Schedule / Custom WT |
| Connection | Butt Weld |
| End Preparation | Beveled / Plain / Special |
| Surface Treatment | Mill / Pickled / Passivated / Polished |
| Heat Treatment | Solution Annealed |
| Material Verification | PMI / Chemical Analysis |
| Mechanical Testing | Tensile / Yield / Elongation |
| Dimensional Inspection | OD / Thickness / Branch Alignment / Squareness |
| NDT | UT / RT / PT as specified |
| Corrosion Testing | Pitting / Intergranular Testing as specified |
| Documentation | MTC / EN 10204 3.1 / 3.2 |
| Traceability | Heat Number / Batch Identification |
| Third-Party Inspection | Available as required |
| Packing | Export-Grade Wooden Cases / Bundles |
| Custom Manufacturing | Special branch sizes, thicknesses and non-standard geometries |
Why Should You Buy 254 SMO Cross from Metalx Nickel & Alloys?
- Experienced 254 SMO Cross Supplier & Exporter serving international buyers, distributors, EPC contractors, stockholders and industrial end users.
- 20+ Years of Alloy Industry Experience in supplying corrosion-resistant and high-performance alloy products to customers across the UAE, Saudi Arabia, Africa and other global markets.
- Specialized 254 SMO Exporter offering 254 SMO / UNS S31254 / 1.4547 Cross Fittings for demanding corrosive environments.
- Super Austenitic Stainless Steel Expertise for applications requiring excellent resistance to pitting, crevice corrosion and chloride-related attack.
- Global Sourcing Network with access to reputed stainless-steel and specialty-alloy mills, manufacturers and approved stockholders across Europe, USA, Japan and other major supply markets.
- Wide Specialty Stainless Fittings Range including 254 SMO, Duplex 2205, Super Duplex 2507 and other high-performance alloys.
- Ready Stock Availability for selected 254 SMO Cross sizes, subject to current stock and availability.
- Custom 254 SMO Cross Supply according to customer drawings, size, schedule, wall thickness and branch dimensions.
- Equal & Reducing Cross Supply for standard and specialized industrial piping requirements.
- ASTM / ASME Specification Supply according to applicable requirements, including ASTM A403 / ASME SA403, where applicable.
- ASME B16.9 Dimensional Compliance can be supplied where applicable to the fitting configuration.
- MTC with Quotation – Material Test Certificates and relevant technical documentation can be provided with export quotations and orders.
- EN 10204 3.1 / 3.2 Certification available according to the purchase order, project specification and inspection requirements.
- PMI Testing Support for positive material identification where required.
- Third-Party Inspection Support can be coordinated through approved inspection agencies for international export orders.
- Chemical, Mechanical & Dimensional Testing can be arranged according to applicable standards and customer specifications.
- Visual & Hardness Testing Support can be arranged where required by the applicable specification or purchase order.
- NDT Support including applicable ultrasonic or radiographic examination where specified.
- Pickling & Passivation can be supplied according to project requirements.
- Custom Surface Finish can be arranged according to the applicable specification.
- Export-Ready Packing designed to protect 254 SMO Cross Fittings during handling, storage and international transportation.
- Worldwide 254 SMO Cross Exporter serving buyers across the Middle East, Africa, Asia, Europe and other international markets.
- Competitive Export Pricing for bulk quantities, project orders, distributors, importers, traders and international stockholders.
- 254 SMO Cross Export Support for EPC contractors, engineering companies, desalination plants, offshore projects, marine industries, chemical plants, pulp & paper facilities and specialized industrial buyers.
- Technical Support from Export Enquiry to Shipment covering grade, size, schedule, wall thickness, branch dimensions, heat treatment, testing, certification and packing requirements.
- Material Traceability with appropriate identification, certification and quality documentation for export projects.
- Data Sheets & Technical Documentation can be supplied according to customer requirements and project specifications.
- Global Logistics Coordination for 254 SMO Cross shipments to the UAE, Saudi Arabia, Qatar, Oman, Africa, Singapore, Europe and other destinations.
Key Features of 254 SMO Cross
- Super Austenitic Stainless Steel Construction – Manufactured from 254 SMO for highly demanding corrosion-resistant piping applications.
- High Molybdenum Content – Provides excellent resistance to pitting and crevice corrosion in chloride-rich environments.
- High Chromium Content – Contributes to strong general corrosion resistance.
- Nitrogen Alloying – Supports mechanical strength and localized corrosion resistance.
- Excellent Pitting Resistance – Suitable for aggressive chloride-containing services.
- Excellent Crevice Corrosion Resistance – Particularly useful for marine and seawater applications.
- Strong Chloride Stress Corrosion Cracking Resistance – Suitable for selected demanding chloride-service environments.
- High General Corrosion Resistance – Suitable for a wide range of aggressive chemical conditions.
- Four-Way Piping Connection – Provides multiple connection points within a piping system.
- Equal Cross Configuration – Suitable where all required connections have the same nominal size.
- Reducing Cross Configuration – Suitable where one or more branch connections require different sizes.
- Efficient Multi-Directional Flow Connection – Allows multiple process lines to be connected through one fitting.
- Reliable Butt-Weld Connection – Provides a permanent welded connection when properly fabricated.
- Smooth Branch Transitions – Designed for practical integration of branch piping.
- Wide Size Availability – Available in different nominal pipe sizes and outside diameters.
- Multiple Wall Thicknesses – Different schedules and customized thicknesses can be supplied.
- Solution-Annealed Condition – Heat treatment can be supplied according to applicable requirements.
- Good Weldability – Can be welded using suitable procedures for super-austenitic stainless steel.
- Good Fabrication Characteristics – Suitable for controlled forming and fabrication processes.
- Pickled & Passivated Options – Surface treatment can be supplied according to project requirements.
- PMI Verification – Positive Material Identification can be arranged where required.
- Marine Applications – Useful for selected seawater and marine-service systems.
- Desalination Applications – Suitable for selected desalination and seawater-treatment equipment.
- Offshore Applications – Can be considered for selected offshore piping systems.
- Chemical Processing Applications – Suitable for selected aggressive chemical process lines.
- Oil & Gas Applications – Useful for selected upstream, downstream and offshore systems.
- Pulp & Paper Applications – Suitable for selected corrosive process environments.
- Flue Gas Desulfurization Applications – Can be considered for selected pollution-control systems.
- Water Treatment Applications – Suitable for selected chloride-rich water-treatment services.
- Heat Exchanger Applications – Useful for selected heat-transfer systems exposed to corrosive media.
- Industrial Process Piping – Suitable where exceptional localized corrosion resistance is required.
- Custom Branch Dimensions – Branch sizes and configurations can be supplied according to customer drawings.
- Multiple Surface Options – Mill finish, pickled, passivated or other specified finishes can be supplied.
- Material Traceability – Material identification and relevant certification can be supplied.
- Quality Testing Available – Chemical, mechanical, dimensional, visual, PMI and other specified inspections can be arranged.
- Export-Ready Material – Cross fittings can be suitably packed for handling, storage and international transportation.
- Global 254 SMO Cross Exporter – METALX NICKEL & ALLOYS supplies 254 SMO Cross Fittings to international buyers, distributors, traders, stockholders and industrial end users.
| Specification | 254 SMO Cross Details |
|---|---|
| Product Name | 254 SMO Cross |
| Material Grade | 254 SMO / 6Mo Stainless Steel |
| UNS Designation | S31254 |
| Werkstoff Number | 1.4547 |
| Material Type | Super Austenitic Stainless Steel |
| Material Standard | ASTM A403 / ASME SA403, where applicable |
| Dimensional Standard | ASME B16.9, where applicable |
| Cross Type | Equal Cross / Reducing Cross |
| Connection Type | Butt Weld |
| Size | As per applicable standard or customer specification |
| Wall Thickness | Different schedules and customized thicknesses |
| Branch Size | Equal or reducing branch sizes as required |
| Manufacturing | Wrought / Formed, as applicable |
| Configuration | Seamless / Welded, depending on size and specification |
| End Preparation | Bevelled Ends for Butt Welding |
| Heat Treatment | Solution Annealed as applicable |
| Surface Finish | Mill Finish, Pickled, Passivated or customer-specified finish |
| Testing | Chemical, mechanical, dimensional, visual, PMI and other specified inspections |
| Documentation | MTC, inspection reports and relevant quality documents as required |
| Customization | Size, thickness, schedule, branch dimensions, finish, testing and documentation |
| Packing | Export-worthy packing suitable for safe international transportation |
| Applications | Desalination, Marine, Chemical Processing, Oil & Gas, Pulp & Paper, Water Treatment and Pollution Control |
What type of stainless steel is 254 SMO?
254 SMO is a super-austenitic stainless steel containing high chromium, molybdenum and nitrogen levels.
Why is 254 SMO used in chloride-rich environments?
Its high alloy content provides excellent resistance to pitting, crevice corrosion and chloride stress corrosion cracking in suitable service conditions.
What material standard is commonly applicable to 254 SMO Cross Fittings?
ASTM A403 / ASME SA403 can be applicable to wrought austenitic stainless-steel fittings, subject to the exact product requirements.
What types of 254 SMO Cross are available?
The common configurations are Equal Cross and Reducing Cross.
Can Material Test Certificates be provided?
Yes. Material Test Certificates, inspection reports and relevant quality documents can be supplied according to customer and project requirements.
What testing can be provided?
Testing can include chemical analysis, mechanical testing, dimensional inspection, visual inspection, hydrostatic testing and other specified tests.