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Cold Rolled 254SMo Stainless Steel Plate with High Molybdenum Content for Superior Corrosion Resistance

Πιστοποίηση	ISO, AISI, ASTM
Ποσότητα παραγγελίας min	50 κιλά
Τιμή	US $5.65-13.85 / kg

Λεπτομέρειες

Μοντέλο ΑΡΙΘ.	254SMO	Σχήμα	Επίπεδα
Τεχνική	ψυχρής έλασης	Επεξεργασία Επιφανειών	Ευφυής
Προσδιορισμός	12202440, 15003000, 15006000, 20006000mm	Παραγωγική ικανότητα	50000 KGS
Περιεχόμενο σιδήρου	55,69%	περιεκτικότητα σε χρώμιο	20%
Περιεχόμενο νικελίου	18%	Περιεκτικότητα σε Μολυβδαίνιο	60,1%
Περιεκτικότητα σε άζωτο	0,20%	Περιεκτικότητα σε άνθρακα	0,010%
Αντοχή εφελκυσμού	680 MPa	Ισχύς απόδοσης	300 MPa
Επιμήκυνση στο Break	50%
Επισημαίνω	Cold Rolled 254SMo Stainless Steel Plate , Corrosion Resistant 254SMo Stainless Steel Plate , High Molybdenum Content Stainless Steel Plate

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Περιγραφή προϊόντων

254SMo Chemical Composition 254SMo Rolled Alloys Plate

254SMo is an austenitic stainless steel specifically developed for use in halide-containing environments such as seawater. This steel demonstrates superior performance particularly in halide-containing acids and offers excellent resistance to uniform corrosion. With carbon content below 0.02%, it is classified as pure austenitic stainless steel, and when carbon content is less than 0.01%, it qualifies as super austenitic stainless steel.

Features of Inox 254SMo

Super stainless steel represents a specialized category of stainless steel distinguished from ordinary grades by its high alloy content of nickel, chromium, and molybdenum. The most prominent example is 254SMo with 6% molybdenum content. The elevated molybdenum concentration provides exceptional local corrosion resistance, along with superior resistance to pitting corrosion (PI ≥ 40) and stress corrosion in demanding conditions including seawater, aeration, crevices, and low-speed scouring. This makes 254SMo an excellent alternative to nickel-based alloys and titanium alloys.

Additionally, 254SMo exhibits outstanding high-temperature resistance and corrosion performance that surpasses 304 stainless steel. From a metallurgical perspective, special stainless steel maintains a stable austenitic structure.

Extensive field testing and practical experience confirm that 254SMo maintains high crevice corrosion resistance in seawater, even at elevated temperatures—a characteristic shared by only a few stainless steel types. In acidic solutions and oxidizing halide environments such as those found in paper bleaching applications, 254SMo demonstrates corrosion resistance comparable to the most resistant nickel-based alloys and titanium alloys.

The high nitrogen content in 254SMo provides enhanced mechanical strength compared to other austenitic stainless steels. The alloy also offers high ductility, excellent impact strength, and good weldability. While the high molybdenum content results in increased oxidation during annealing, leading to a slightly rougher surface after pickling compared to conventional stainless steels, this does not compromise the material's corrosion resistance.

Specification

Standard	UNS	Werkstoff Nr.	EN	SS	AFNOR
254 SMO	S31254	1.4529	X1CrNiMoCuN20-18-7	2378*	Z1 CNDU 20.18.06AZ*

Chemical Properties

The chemical composition of stainless steel grade 254 SMO™ is outlined in the following table.

Element	Content (%)
Iron, Fe	55.69
Chromium, Cr	20
Nickel, Ni	18
Molybdenum, Mo	6.1
Nitrogen, N	0.20
Carbon, C	0.010

Mechanical Properties

The following table shows mechanical properties of stainless steel grade 254 SMO™.

Properties	Metric	Imperial
Tensile strength	680 MPa	98600 psi
Yield strength	300 MPa	43500 psi
Modulus of elasticity	195 GPa	28300 ksi
Shear modulus	75 GPa	10900 ksi
Poisson's ratio	0.30	0.30
Elongation at break	50 %	50 %
Hardness, Brinell	210	210

254SMo Applications

Ocean: Marine structures in sea environments, seawater desalination, marine aquaculture, seawater heat exchange
Environmental Protection: Flue gas desulfurization for thermal power generation, wastewater treatment
Energy: Nuclear power generation, comprehensive coal utilization, ocean wave power generation
Petrochemical Industry: Refining operations, chemical processing equipment
Food: Salt production, soy sauce brewing processes
High Concentration Chloride Ion Environment: Paper industry applications, various bleaching systems
Other specialized industrial applications