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Duplex stainless steels are becoming more common. They are being offered by all the major stainless steel mills for a number of reasons:
There is a conference on the subject of duplex every 2-3 years where dozens of highly technical papers are presented. There is a lot of marketing activity surrounding these grades. New grades are being announced frequently.
Yet, even with all this interest, the best estimates for global market share for duplex are between 1 and 3%. The purpose of this article is to provide a straightforward guide to this steel type. The advantages and disadvantages will be described.
The idea of duplex stainless steels dates back to the 1920s with the first cast being made at Avesta in Sweden in 1930. However, it is only in the last 30 years that duplex steels have begun to “take off” in a significant way. This is mainly due to advances in steelmaking techniques particularly with respect to control of nitrogen content.
The standard austenitic steels like 304 (1.4301) and ferritic steels like 430 are relatively easy to make and to fabricate. As their names imply, they consist mainly of one phase, austenite or ferrite. Although these types are fine for a wide range of applications, there are some important technical weaknesses in both types.
Minimum Order Quantity: 5 Kilogram
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Material Grade | Duplex 2205 |
Single Piece Length | 6 meter, 3 meter |
Thickness/Diameter | 1-2 inch, 3-4 inch, 0-1 inch, 2-3 inch, >4 inch |
Brand | SKYLAND METAL |
Shape | Round |
Bar Type | Nickel Bar |
Grade | A476/A279 UNS31803 / Duplex 2205 |
Condition | New |
Material | Duplex Steel |
Application | Manufacturing |
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Minimum Order Quantity: 1 Piece
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Material | Stainless Steel, Duplex Steel |
Type | Duplex Steel |
Thread Size | NPT / BSP |
Connection Type | Welded |
Material Grade | ASTM A815 S31803 |
Surface Finishing | Plain |
Weight | Random |
Condition | Refurbished |
Grade | ASTM A815 S31803 |
Brand | SKYLAND |
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Minimum Order Quantity: 1 Kilogram
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Material Grade | S31803 2205 |
Single Piece Length | 3 meter, 6 meter |
Thickness/Diameter | 2-3 inch, >4 inch, 0-1 inch, 1-2 inch, 3-4 inch |
Shape | Round |
Grade | S31803 2205 |
Steel Grade | S31803 2205 |
Condition | New |
Color | Silver |
Material | Duplex Steel |
Application | Manufacturing |
We Skyland Metal And Alloys Inc. are prominet Manufacturers , Importers and Stockholders of various sizes of Duplex Steel Bars.
Please find the Characteristic properties below
Reinforcing bars for concrete structures General characteristics Ferritic-austenitic stainless steel also referred to as duplex stainless steels, combine many of the beneficial properties of ferritic and austenitic steels.
Due to the high content of chromium and nitrogen, and often also molybdenum, these steels offer good resistance to localised and uniform corrosion. The duplex micro We are dedicatedly engaged in offering a commendable range of Duplex Steel Bars Besides being manufactured from high-grade raw-material and latest technology, the offered products are inspected properly by our vendors' expert professionals. Owing to features like durability and sturdiness, the offered range is exceptionally valued by our precious clients. The offered products are available with us in various sizes and shapes at affordable price.
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Minimum Order Quantity: 1 Piece
Nominal Size | 3 inch, >3 inch, 3/4 inch, 1 inch, 2 inch, 1/2 inch |
Size | 1/2 inch, 2 inch, 1 inch, 3/4 inch, 3 inch |
Surface Finish | Mill Finished, Sand Blasted, Finished Polished |
Product Type | Elbow, Welded, Seamless |
Grade | ASTM A815, G48A UNS S31803 |
Material Grade | ASTM A815, G48A UNS S31803 |
Material | Duplex Steel |
Application | Chemical Handling Pipe |
Brand | SKYLAND |
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Minimum Order Quantity: 1 Piece
Size | >30 inch, 1-5 inch, 10-20 inch, 20-30 inch, 5-10 inch, 0-1 inch |
Material | Duplex Stainless Steel |
Material Standard | ASTM A182 |
Type | Weld neck flanges, Threaded flanges, Blind flanges |
Condition | New |
Material Grade | ASTM A182 F51 |
Grade | F51 |
Brand | skyland |
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Minimum Order Quantity: 1 Kg
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Size | 3 inch |
Unit Pipe Length | 6 meter |
Material | DUPLEX |
Steel Grade | UNS 31803 |
Brand | SKYLAND |
Dimensions | STANDARD |
General Frequency | REGULAR |
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Minimum Order Quantity: 1 Kg
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Unit Pipe Length | 6 meter, 3 meter |
Form | Round |
Grade | UNS31803 2205 |
Hole Type | Round |
Material | Duplex Steel |
Size | 3/4 inch |
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Minimum Order Quantity: 5 Piece
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Material Grade | S31803 1.4462 F51 |
Size | 1/2 inch, 3 inch, 1 inch, 2 inch, 3/4 inch |
Application | Structure Pipe, Chemical Fertilizer Pipe, Pneumatic Connections, Gas Pipe, Hydraulic Pipe |
Brand | SKYLAND |
Color | SILVER |
Material | DUPLEX STAINLESS STEEL |
Schedule | Sch 5 to SchXXs |
Thread Size | NPT / BSP |
By using abilities of our accomplished experts, we at Skyland Metal And Alloys Inc. are manufacturing, exporting and supplying a comprehensive assortment of Duplex Steel S31803 Buttweld Fittings.
With genuine aims to protect and elevate our notoriety in the business sector, SKYLAND METAL AND ALLOYS INC. are putting forth an exhaustive arrangement of Duplex Steel S31803 Buttweld Fittings. Our offered extent is made in a manner that we can keep up internationally acknowledged guidelines. Inferable from their astounding elements, these Duplex Steel S31803 Buttweld Fittings are to a great extent requested for associating two pipes. Furthermore, customers can benefit the offered range from us in an extensive variety of particulars.
We offer these Duplex Steel Butt Weld Fittings in various sorts, for example, Duplex Steel Seamless Butt weld pipe fittings, Duplex Steel Welded Butt weld pipe fittings, Duplex Steel Elbow (45 deg, 90 deg, 180 deg), Duplex Steel Equal and Unequal (diminishing) Tees, Duplex Steel Equal and Unequal (decreasing) Cross, Duplex Steel Concentric and Eccentric Reducer, Duplex Steel Long and Short Stubends, and Duplex Steel Pipe End Caps.
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Minimum Order Quantity: 1 Piece
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Rated Pressure (Bar) | 150 |
Material Standard | ASTM A182, Duplex 2205, ANSI B16.5 |
Material Grade | ASTM A182 GRF51 Duplex NACE MR 0175 |
Condition | New |
Material | Duplex Steel, Stainless Steel |
Grades | ASTM A182 GRF51 Duplex NACE MR 0175 |
Size | 1/2" - 36" |
Brand | SKYLAND |
With thorough understanding of the relevant industry, we Skyland Metal And Alloys Inc. are offering a wide range of Duplex Steel Flanges. These flanges are manufactured using optimum quality raw-material and advanced technology at vendors' end. In tune with different requirements of our copious clients, we customize the entire range in various sizes and shapes. Our offered range has gained exceptional value amongst our clients for its defined features.
Features:
Flanges:
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Minimum Order Quantity: 1 Piece
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Size | M10 - M250 |
Quantity Per Pack | 100 |
Type | Fastener |
Material Grade | S31803 |
Grade | S31803 |
Condition | New |
Surface Finish | Nickel Plated |
Color | SILVER |
Material | Duplex Steel |
Brand | SKYLAND |
We are proud that SKYLAND METAL AND ALLOYS INC. is the world’s number one bespoke producer of Duplex bolting. Duplex Stainless Steel Grades are similar to standard duplex, but they contain a higher content of Chromium, thus enhancing the corrosion resistance and mechanical properties. SKYLAND METAL produces fasteners In All Three Types of Duplex.
SKYLAND has released it own special Duplex Fastener Specification.
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Minimum Order Quantity: 1 Piece
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Size | 5-10 inch, >30 inch, 1-5 inch, 10-20 inch, 20-30 inch, 0-1 inch |
Material Standard | ASTM A182, ASTM A351, ANSI B16.5, ASTM A105 |
Material Grade | S31803 |
Condition | New |
Type | WNRF / SORF / BLIND |
Material | Stainless Steel, Duplex Steel |
Grades | S31803 |
Brand | SKYLAND |
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Minimum Order Quantity: 10 Piece
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Brand | SKYLAND |
Material | DUPLEX STEEL |
Size | 1/2,3/4,1,2,3 |
Schedule | Sch 5 to SchXXs |
Connection | Welded, Male, Female, Flange |
Application | Structure Pipe, Gas Pipe, Hydraulic Pipe, Chemical Fertilizer Pipe |
Material Grade | S31803 |
DUPLEX STEEL : S31803, S32205, 1.4462, F51 ;
Forged Fittings Type Threaded Fittings
• 90° Elbow
• 45° Elbow
• Tee
• Cross
• Full Coupling
• Half Coupling
• Pipe Cap
• Hexa Head Bushing
• Hex Head Plug
• Street Elbow
• Bull Plug
• Boss
• Swage Nipple
• Pipe Nipple
• Adapter
• Union ( Male / Female)
• Branch Outlet
• 90° Elbow Outlet
• 45° Lateral Tee
• Lateral Outlet
• Nipple Branch Outlet
Forged Fittings Type Socket Weld Fittings
• Reducers
• Socket Weld Eccentric Reducers
• Socket Weld Equal Tee
• Socket Weld Unequal Tee
• Socket Weld Adapters
• Socket Weld Pipe Nipples
Brand:SKYLAND
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Minimum Order Quantity: 1 Piece
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Size | M10 - M250 |
Material Grade | Duplex 2205 |
Condition | New |
Color | Silver |
Material | Stainless Steel / Duplex Steel |
Brand | SKYLAND |
Type | Nuts , Bolts , HexBolt , Washer , Spring Washer |
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Minimum Order Quantity: 1 Kilogram
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Steel Grade | ASTM/ASME A790 UNS S2205 |
Unit Pipe Length | 3 meter, 6 meter |
Size | 2 inch, 1 inch, 3/4 inch, 3 inch, >3 inch, 1/2 inch |
Surface Finish | Mill Finished, Finished Polished |
Material Grade | A790 UNS2205 |
Shape | Round |
Unit Length | 3m, 6m |
Length | 3m, 6m |
Nominal Size | 3/4'', 2'', 1'', 1.50'', 1/2'' |
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Minimum Order Quantity: 1 Kilogram
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Steel Grade | ASTM/ASME A789/A790 UNS S31803 |
Unit Pipe Length | 3 meter, 6 meter |
Size | 3 inch, 1 inch, 1/2 inch, 3/4 inch, 2 inch |
Material | DUPLEX STEEL |
COLOR | Silver |
GRADE | ASTM/ASME A789/A790 UNS S31803 |
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Minimum Order Quantity: 5 Kilogram
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Thickness | 1-2 mm, 4-5 mm, 3-4 mm, 2-3 mm, >5 mm, 0-1 mm |
Material Grade | S31803 / Duplex 2205 |
Brand | SKYLAND |
Shape | Rectangular |
Place Of Origin | INDIAN |
Material | Duplex Steel |
Size | 4*8 / 5*10 |
Being a well established organization, we SKYLAND METAL AND ALLOYS INC. bring forth an excellent assortment of Duplex Steel Sheet & Plate. Our offered products are widely appreciated by our prestigious clients for their precise design and easy installation. These products can also be availed in various sizes, designs and other related specifications. Our provided products are manufactured by a team of our vendors' adept professionals utilizing quality approved stainless steel and advanced technology.
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Minimum Order Quantity: 5 Kilogram
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Color | Silver |
Material Grade | 1.4462/ S31803 / S32205 |
Shape | Rectangular |
Thickness | 0.5mm - 10mm |
Material | Stainless Steel |
Type | Duplex Steel |
We SKYLAND METAL AND ALLOYS INC. have emerged as a leading organization, engaged in offering superior quality Super Duplex Steel Coils. At the vendors' end, these coils are manufactured using optimum grade stainless steel and cutting edge technology in synchronization with set industry norms of quality. Apart from this, these coils are extensively demanded in the market for their indispensable features. Clients can avail the entire range from us at affordable price.
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