Lean Duplex

Lean Duplex Sheet Suppliers, Lean Duplex Stainless Steel Plate Distributors, Lean Duplex Hot Rolled Plates, Lean Duplex SS Hot Rolled Plates Stockist, Lean Duplex Coil Exporter in Mumbai, India.
Lean Duplex Polished Plates Stockists, ASTM A240 Lean Duplex Hot Rolled Plate (HR), (LDSS) Lean Duplex Steel Strips Dealers, Lean Duplex SS Cold Rolled Sheet (CR) Suppliers in India.
DETAILED INFORMATION
As part of the Duplex Specification, Lean Duplex Steel is a special alloy of ferratic and austenitic steels in equal quantities. It is a combination that produces an alloy that contains all the features of ferrite and austenitic steel in an alloy of chromium, nickel, and molybdenum that is the perfect combination of both. Stainless steel that is known as Lean Duplex isn't an actual mix of both types of steel, but it does have the characteristics and properties of both steel types, as well. It is possible for Lean Duplex Stainless Steel to exhibiting weaknesses from both ferrite and austenitic steels as well.
For applications that require very high strength, such as building construction sites, lean grade stainless steel is very important. Lean grade material is used for applications that do not require very high strength. LDX2101, DX2304, EDX3304 and LDX2404 are Lean Duplex Stainless Steel Grades that are interchangeable, though with some applications specific to each grade. The lower carbon content of lean duplex stainless steel makes welding much easier than welding other grades. A Lean Duplex Price varies between grades, suppliers, and locations; it also depends on transportation options. Lean Duplex Stainless Steel products are used in long term corrosion resistance applications, including storage tanks and containers.
It is most commonly used in chemical processing plants, where corrosion is not a desirable characteristic. Additionally, Lean Duplex Steel piping products can reduce localized corrosion by acidic substances, preventing uniform corrosion.
Lean Duplex stainless steel raw materials are costly due to their higher amounts of chromium, nickel and molybdenum and the formation process involved. The most common application of Lean Duplex Stainless Steel in onshore industry is onshore. Offshore, Lean Duplex Stainless Steel Products can endure salty winds and marine environments bringing up chloride-rich environments. Lean Duplex Alloy for Oil and Gas Industry is very resistant to thermal expansion due to its low thermal expansion values compared to other metals. A pressure vessel made of LDX Duplex is able to hold a great deal of weight and withstand pressure. With its high tensile values, this material is ideal for applications under pressure.
304 and 316 are austenitic grades, and lean duplex grades are generally stronger and better than 410 and 416. They also resist stress corrosion cracking in sour service. The stainless steel in this grade is not similar to your existing grades and has a different hardness, so it does not gallon as quickly as it does with your current grades. Additionally, they're stronger and easier to machine than your current grades.
Offshore platforms tend to use duplex stainless steel for specific applications such as storage tanks, pressure vessels, heat exchangers, bridges, and railings. In addition to supporting pipes, water treatment systems, and fire walls.
By As Duplex steel has so much stronger and more durable characteristics than carbon steel and ordinary stainless steel, the cost will decrease because the thickness of the steel will be reduced, as well as reducing handling, fabrication, and welding costs since the thickness of the steel will be reduced.
Stainless steel with a Duplex composition is a better steel than traditional grades, such as 304 and 316L. One reason is that it has a better balance of chromium, molybdenum, and nitrogen.
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Lean Duplex Stainless Steel Plate & Sheet Specification:
Material: Lean Duplex Plate / Lean Duplex Sheet
Specifications: ASTM A240 / ASME SA240
Lean Duplex Sheet & Plate Size: 1000 x 2000 mm / 1220 x 2440 mm / 1500 x 3000 mm / 2000 x 2000 mm / 2000 x 4000 mm
Finish: Cold Rolled Sheet (CR), Hot Rolled Plate (HR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)
Lean Duplex Plate & Shee Length: 2m, 2.44 m, 3 m, or as required
Hardness: Half Hard, Quarter Hard, Spring Hard, Soft, Hard, etc.
Thickness: 0.1mm to 100 mm Thk
Width: 10 - 2500 mm
Form: Plate, Sheet, Foils, Coils, Rolls, Strip, Flats, Clad Plate, Plain Sheet, Shim Sheet, Rolling Plate, Flat Shim, Flat Sheet, Blank (Circle), Rolling Sheet, Checker Plate annealed, descaled, sheared, tread plate, soft annealed
Chemical composition
Weight % | C | Si | Mn | S | P | Cr | Ni | Mo | N | Cu | B |
Min. | 22,00 | 3,50 | 0,10 | 0,05 | 0,10 | ||||||
Max. | 0,030 | 1,00 | 2,00 | 0,015 | 0,035 | 24,00 | 5,50 | 0,60 | 0,20 | 0,60 | 35 ppm |
Mechanical Properties
Yield strength Rp0.2, MPa | Tensile strength Rm, MPa | Elongation [%] | Hardness [HB] | Impact, Charpy-V, -46ºC [J] | Pre | |
PLATE CR (COIL) | ≥ 500 | ≥ 690 | ≥ 25 | ≥ 45 | ≥ 28 | |
PLATE HR (COIL) | ≥ 500 | ≥ 690 | ≥ 25 | ≤ 290 | ≥ 45 | ≥ 28 |
PLATE (QUARTO) | ≥ 420 | ≥ 630 | ≥ 25 | ≤ 290 | ≥ 45 | ≥ 28 |
ANGLE BAR | ≥ 450 | ≥ 600 | ≥ 25 | ≤ 290 | ≥ 45 | ≥ 28 |
Equivalent Material Grade Of Lean Duplex Stainless Steel UNS S32304
Alloy | 1.4362 AISI product Material No. | UNS | EN Designation |
2304 | EN 1.4362 | S32304 | DIN X2CrNiN23-4 |
Physical Properties Lean Duplex
Thermal conductivity W/m K | Density g/cm³ | Specific heat capacity J/kg K | Electrical resistivity Ω mm²/m |
15 | 7.8 | 500 | 0.8 |
Lean Duplex Steel Plate & Sheet Metric Dimensions and Sizes
Surface finish | Thickness (mm) | Widtd (mm) |
Lean Duplex 1D – heat treated, pickled Plate & Sheet, Hot rolled, | 2.4–12.7 | max. 2032 |
2R – bright-annealed Sheet & Plate Lean Duplex Cold-rolled | 0.05–1.50 | 3–649 |
2H – Lean Duplex Steel Work hardened Plate & Sheet | 0.05–1.50 | 3–630 |
2B – Lean Duplex Cold rolled, pickled, skin passed, heat treated Sheet & Plate | 0.25–8.0 | max. 2032 |
2D – Lean Duplex heat treated, pickled Plate & Sheet, Cold rolled | 0.4–6.35 | max. 1524 |
2E – mechanically descaled Sheet & Plate, Lean Duplex Cold rolled, heat treated | 0.4–8.0 | max. 2032 |
2R – bright annealed Plate & Sheet, Lean Duplex Cold rolled | 0.25–3.5 | max. 1524 |
2H – Lean Duplex Stainless Steel Work hardened Sheet & Plate | 0.4–6.35 | max. 1524 |
Lean Duplex Alloy Polished, brushed Plate & Sheet | 0.5–4.0 | max. 1524 |
Deco | 0.3–3.5 | max. 1524 |
Lean Duplex Steel Coil | 0.30–3.5 | max. 1,524 |
Surface finish | Thickness (in) | Widtd (in) |
1 – Lean Duplex Hot rolled, heat treated, pickled Plate & Sheet | .1000 – .3750 | max. 72 |
2R – bright-annealed Sheet & Plate, Lean Duplex Cold-rolled | 0.002–0.06 | 0.118–25.551 |
2H – Lean Duplex Steel Work hardened Plate & Sheet | 0.002–0.06 | 0.118–24.803 |
2B – Lean Duplex pickled, Cold rolled, skin passed Sheet & Plate, heat treated | 10–24 | max. 72* |
2D – Lean Duplex Cold rolled, heat treated, pickled Plate & Sheet | 12–24 | max. 60 |
BA Mexinox only | 18–28 | max. 48 |
Deco Rolled-On Mexinox only | 14–28 | max. 48 |
Lean Duplex Polished Plate & Sheet (not brushed) | 11–24 | max. 60 |
Temper rolled Mexinox only | 13–29 | max. 48 |
Lean Duplex price per kg
Grade | Price Per Kg in US $ |
Price per kg | $ 3-4 |
Lean Duplex Stainless Steel Uses
- Maritime pipelines and pipelines that are exposed to aggressive chemicals
- All types of profiles required for use in the above-mentioned scenarios
- In all kinds of industries, pressure vessels are used
- Facilities for cleaning flue gases
- In petrochemical plants, heat exchangers are used
- Stations for the desalination of water
- A vehicle's construction components
- Vessels, storage tanks, and containers for different purposes
- A wide range of food and beverage tanks and containers can be found here
- The oil and gas industry relies on pipelines
- Architects and engineers design structural elements for bridges and buildings
Good weldability
Most austenitic stainless steels can be welded using most of the welding methods used for duplex stainless steels:
- Welding with shielded metal arcs (SMAW)
- A gas tungsten arc welding process called GTAW (gas tungsten arc welding)
- MIG welding (GMAW) is a gas metal arc welding process
- Welding with flux-cored arcs (FCW)
- Welding with plasma arcs (PAW)
- Welding with submerged arcs (SAW)
- Welding by laser
- Welding with resistance
- Welding at high frequencies
Superior corrosion resistance
There are several grades of duplex stainless steel, which offer superior corrosion resistance than standard austenitics and can withstand acidic and alkaline environments.
For every austenitic stainless steel grade offered by Mehtametals.com, there is a duplex counterpart that provides both corrosion resistance and strength twice as much.
Advantages of duplex materials
An extremely strong material
A high degree of corrosion resistance
The price level can be predicted more easily
Strong endurance when fatigued
The majority of applications experience a weight reduction of more than 30%
As there is no need to paint regularly, there is a low life cycle cost
Over 85% of the material is recycled, and is 100% recyclable
Benefits of letting Lean Duplex replace 304 and 316L:
In comparison with comparable austenitic grades (304 and 316L), this grade exhibits superior corrosion resistance.
You need to double your strength, take advantage of physical properties, and use them to your advantage
Compared to austenitic 304 and 316L, this alloy offers a better cost-performance ratio
Reduced sensitivity to raw material price increases
Lean Duplex Sheet & Plate
Lean Duplex Plain Sheet | Lean Duplex Steel Blank (Circle) | Lean Duplex Steel Foils |
Lean Duplex Steel Coils | Lean Duplex Perforated Sheet | LDX Duplex Alloy Strip |
LDX Lean Duplex Sheets | Lean Duplex Steel Plates | Lean Duplex Stainless Steel Coils |
Steel Lean Duplex Shim Sheet | LDX Lean Duplex Plate | 2101 LDX Lean Duplex Sheet |
Steel Lean Duplex LDX Sheet | Lean Duplex Polished Plates | 2404 Leand Duplex Polished Sheets |
LDX 2304 Duplex Slatting Coil | Lean Duplex Alloy Sheet | Lean Duplex Stainless Steel Strip |
Lean Duplex Hot Rolled Plate (HR) | Lean Duplex Cold Rolled Sheet (CR) | Steel Lean Duplex Coils |
Available Forms Available In 1.4362 ALLOY 2304
Sheets /Plates | Bars | Tubes/ Pipes | Fittings |
Alloy 2304 | EN 10088 -3 1.4362 | Alloy 2304 | EN 10222-5 1.4362 |
Alloy 2304 UNS S32304 | EN 10088 -3 X2CrNiN23-4 | Alloy 2304 UNS S32304 | EN 10222-5 X2CrNiN23-4 |
EN 10028-7 1.4362 | EN 10088-5 1.4362 | EN 10217-7 1.4362 | EN 10253-4 1.4362 |
EN 10088-4 X2CrNiN23-4 | EN 10263-5 X2CrNiN23-4 | EN 10216-5 X2CrNiN23-4 | EN 10253-3 X2CrNiN23-4 |
EN 10088-4 1.4362 | EN 10263-5 1.4362 | EN 10216-5 1.4362 | EN 10253-3 1.4362 |
EN 10028-7 X2CrNiN23-4 | EN 10088-5 X2CrNiN23-4 | EN 10217-7 X2CrNiN23-4 | EN 10253-4 X2CrNiN23-4 |
EN 10088-2 1.4362 | EN 10272 1.4362 | EN 10297-2 1.4362 | EN 10269 1.4362 |
EN 10088-2 X2CrNiN23-4 | EN 10272 X2CrNiN23-4 | EN 10297-2 X2CrNiN23-4 | EN 10269 X2CrNiN23-4 |
EN 10151 1.4362 | EN 10296-2 1.4362 | EN 10250-4 1.4362 | |
EN 10151 X2CrNiN23-4 | EN 10296-2 X2CrNiN23-4 | EN 10250-4 X2CrNiN23-4 | |
– | – | SA 789 uns s32304 | – |
2204 Duplex stainless steel (DSS)
Lean duplex stainless steel DSS 2204 (New) | |
pitting resistance | 1 mass %Cr + 3.3 mass %Mo + 16 mass %N |
Composition | 22Cr-1.5Mn-4Ni-0.2N-1.2Mo |
DSS 2304 alloying elements | Cr, Mo and N (Cr and Mo are enriched in ferrite phase and N is concentrated in austenite) |
Super Duplex Vs Lean Duplex
Lean Duplex
ASTM | EN-Nr. | C max. | Cr | Ni | Mo | N | Mn | Cu | W | PRE* |
S32101 | 1.4162 | 0,04 | 21,0-22,0 | 1,35-1,7 | 0,1 – 0,8 | 0,20-0,25 | 4,0-6,0 | 0,1-0,8 | – | 26 |
S32202 | 1.4062 | 0,03 | 21,5-24,0 | 1,0-2,8 | 0,45 | 0,18-0,26 | 2,0 | – | 26 | |
S32304 | 1.4362 | 0,03 | 21,5-24,5 | 3,0-5,5 | 0,05-0,6 | 0,05-0,20 | 2,5 | 0,05-0,60 | – | 26 |
Standard
ASTM | EN-Nr. | C max. | Cr | Ni | Mo | N | Mn | Cu | W | PRE* |
S31803 | 1.4462 | 0,03 | 21,0-23,0 | 4,5-6,5 | 2,5-3,5 | 0,08-0,20 | 2,0 | – | – | 33 |
S32205 | 1.4462 | 0,03 | 22,0-23,0 | 4,5-6,5 | 3,0-3,5 | 0,14-0,20 | 2,0 | – | – | 35 |
25% Cr
ASTM | EN-Nr. | C max. | Cr | Ni | Mo | N | Mn | Cu | W | PRE* |
S32520 | 1.4507 | 0,03 | 24,0-26,0 | 5,5-8,0 | 3,0-4,0 | 0,20-0,35 | 1,5 | 0,5-2,0 | – | >40 |
S32550 | 1.4507 | 0,04 | 24,0-27,0 | 4,5-6,5 | 2,9-3,9 | 0,10-0,25 | 1,5 | 1,5-2,5 | – | >40 |
Austenitic Grades
ASTM | EN-Nr. | C max. | Cr | Ni | Mo | N | Mn | Cu | W | PRE* |
304L | 1.4307 | 0,03 | 17,5-19,5 | 8,0-10,5 | – | 0,11 | – | – | – | 18 |
316L | 1.4404 | 0,03 | 16,5-18,5 | 10,0-13,0 | 2,0-2,5 | 0,10 | – | – | – | 24 |
904L | 1.4539 | 0,02 | 19,0-21,0 | 24,0-26,0 | 4,0-5,0 | 0,15 | – | 1,20 | – | 34 |
S31254 | 1.4547 | 0,2 | 19,5-20,5 | 17,5-18,5 | 6,0-7,0 | 0,18-0,25 | – | 0,5-1,0 | – | 43 |
Applications
There are mainly applications for 1.4362 / Lean Duplex UNS S32304 / EDX 2304 in complex details with high corrosion resistance requirements.
S32304 is characterized by:
Corrosion cracking is not a problem due to good stress corrosion resistance.
Despite its corrosion resistance, this alloy is not prone to pitting or crevice corrosion.
The ability to resist corrosion in general is high.
A high degree of mechanical strength is required.
A high resistance to erosion corrosion and corrosion fatigue is provided by this product.
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