254 SMO plate & sheet
ASTM A240
254 SMO plate and sheet provide high-molybdenum austenitic resistance to chloride exposure for cut, formed or fabricated components. Thickness, flatness and thermal history determine how the stock becomes a usable cover, liner or structural section.
- MOQ
- 100 kg
- Samples · typical
- ~20 days
- Production · typical
- 25–35 days
- Heat treatment
- Solution annealed
EN 10204 3.1 MTC + heat-number traceability
Which standard is on your order?
Raw Material Specifications
Heat Treatment
Solution annealedSolution annealing and rapid cooling retain alloying elements in solution and restore the specified corrosion-resistant condition.
What we can make in 254 SMO
Plate
Use for machined covers, tube sheets and equipment plates. Include finishing allowance where machining must remove mill scale or achieve flat gasket and bearing faces.
Sheet
Use for formed covers, ducting and thermal shields where bendability and thickness consistency matter. Surface finish and grain direction can affect visible surfaces and bend quality.
Cut blanks
Use cut profiles to reduce workshop cutting and material waste before fabrication. Hole position, edge finish and heat-affected edges matter when the blank goes directly into forming or welding.
- Size
- Thickness × width × length
- Supply form
- Plate · Sheet · Cut blanks
- Geometry
- Flatness · Squareness · Edges
- Condition
- Grade-specific delivery condition
- Final condition
- Solution annealed
- Inspection
- Cross-section · Surface · Delivery condition · Heat identity
Supply & preparation
Plate or sheet is prepared as full pieces or cut blanks, with stock condition retained through cutting and identification.
Material condition
The final annealed or specified strengthened condition is linked to the lot; an aging treatment is not assumed for a solid-solution alloy.
Finished geometry
Thickness, flatness, squareness and edge condition determine the usable blank.
Where 254 SMO fits — and what matters
Offshore & Marine
Marine equipment enclosures254 SMO plate & sheet are cut and formed into marine equipment enclosures, support plates or cover blanks. Thickness and flatness set the available section before cutting, bending or joining. The assembled contact is exposed to saltwater, deposits and neighbouring metals.
Water Treatment & Desalination
Filtration-equipment covers254 SMO plate & sheet are cut and formed into filtration-equipment covers, support plates or cover blanks. Thickness and flatness set the available section before cutting, bending or joining. The water stream, cleaning cycle and retained liquid define exposure at the installed part.
Oil & Gas
Instrument and auxiliary-equipment enclosures254 SMO plate & sheet are cut and formed into instrument and auxiliary-equipment enclosures, support plates or cover blanks. Thickness and flatness set the available section before cutting, bending or joining. Utility connections and pressure-boundary parts have separate acceptance requirements on the equipment drawing.
Same plate & sheet. Different material priorities.
254 SMO material dataInconel 625
Solid-solution strength and resistance to aggressive process liquids.
- Connection priority
- Plate stiffness or the load carried by a formed section
- Annealed or solution-annealed 625
- The delivery condition affects strength and high-temperature response. Keep the specified condition with the component’s mechanical acceptance; 718-style aging is not the strengthening route for 625. Include liquid retained at formed corners, cut edges and welded seams in the exposure description.
Super Duplex 2507
Super-duplex strength and resistance to chloride pitting.
- Connection priority
- Plate stiffness or the load carried by a formed section
- Final duplex structure
- S32750 chemistry and final solution treatment belong together. Forming, section size and cooling affect the structure represented by the mechanical and corrosion records. Include liquid retained at formed corners, cut edges and welded seams in the exposure description.
Monel K-500
Age-hardened strength in the nickel–copper alloy family.
- Connection priority
- Plate stiffness or the load carried by a formed section
- Strength and hydrogen exposure
- K-500 gains strength through aging. Cathodic protection, hydrogen exposure and the ordered condition need joint consideration in highly loaded marine components. Include liquid retained at formed corners, cut edges and welded seams in the exposure description.
From drawing to documented delivery
- 01Drawing & BOMForm, dimensions and quantity
- 02Material & formingGrade, heat and manufacturing route
- 03Final inspectionGeometry, threads and ordered tests
- 04Documents & dispatchLot records and identified packing
Order documents
- Material identity
- UNS S31254 · heat number · ordered condition
- Stock acceptance
- Grade chemistry, supplied condition and ordered mechanical requirements.
- Dimensional record
- Cross-section · Surface · Delivery condition · Heat identity
- Traceability
- EN 10204 3.1 material certificate · production lot · identified packing
Build your 254 SMO plate & sheet enquiry
Questions about 254 SMO plate & sheet
Which stock details matter beyond alloy and thickness?
Flatness, surface finish, edge preparation and any directional forming requirement influence the usable component. A cut blank also needs a heat identity that survives separation from the original sheet or plate.