Centerway Steel Co., Ltd
Centerway Steel Co., Ltd
Centerway Steel Co., Ltd
carbon steel plate,steel coil,stainless steel plate,china export service provider.
carbon steel plate,steel coil,stainless steel plate,china export service provider.
Introduction
Duplex stainless steel grades have a ferritic-austenitic microstructure, with a phase balance of approximately 50% ferrite and 50% austenite. They combine many of the beneficial properties of ferritic and austenitic stainless steels. The duplex microstructure contributes to the high mechanical strength and high resistance to stress corrosion cracking.
The high strength of duplex steel grades is also a result of alloying with nitrogen. Other characteristic properties of duplex steel grades include good abrasion and erosion resistance, good fatigue resistance, high-energy absorption and low thermal expansion.
Specification
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Material Type |
Ferrite stainless steel, magnetic; |
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Grade |
Duplex stainless steel:S22053,S25073, |
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Special Stainless Steel:904L,347/347H, |
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Technology |
Cold Rolled Hot Rolled |
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Length |
100~12000 mm |
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Width |
100~2000 mm |
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Cold Roll:0.1~3 mm |
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Thickness |
Hot Roll:3~100 mm |
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Other Choices |
Cutting:Laser cutting, help the customer |
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Protection |
1. Inter paper available |
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2. PVC protecting film available |
Duplex Stainless Steel Grade
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Grades |
Description |
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Includes Duplex 2205 (UNS S32205 / S31803), in sheet, sheet coil, plate, plate coil, round bar, processed flat bar and tubular products. Duplex 2205 is ideally suited for high-pressure and highly corrosive environments. |
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Inventory now includes Duplex 2304 (UNS S32304) in sheet, sheet coil, plate, round bar, processed flat bar and tubular products. |
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Inventory now includes Duplex 2507, which is a super duplex stainless steel with 25% chromium, 4% molybdenum, and 7% nickel. |
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LDX2101 |
Inventory now includes Alloy LDX2101 (UNS S32101) in plate and flat bar products. |
Applications
Many applications use duplex and super duplex stainless steel alloys. The following are some of the most common applications.
1.Oil & Gas
Downhole tooling, subsea and well equipment, pumps, and valves use super duplex stainless steels. H2S-containing environments such as sour service wells also frequently use these materials.
2.Bolts and Fasteners
Many bolts and fasteners feature super duplex stainless steel construction. This is due to the material’s high strength and ease of hardening for added strength.
3.Pollution Control Scrubbers
Pumps, fans, and precipitators often use super duplex stainless steels. They offer superior corrosion resistance in systems using seawater and acids.
4.Marine Applications
Shafts, seals, rudders, and propellers frequently use super duplex stainless steel. Specifically, they will use this metal if austenitic stainless steels such as XM-19 are incompatible with an application.
5.Chemical Process Industry
Chemical processes often use phosphoric, sulphuric, and nitric acid during production. Super duplex stainless steels offer the wear, corrosion, and abrasion resistance needed in these applications.
6.Vegetable Processing
Equipment used for processing vegetables and grains often features duplex stainless steels. Ferralium 255 offers reliable resistance to wear and corrosion in sugar cane processing, centrifuges, and mixers.
7.Water Treatment
Some water treatment applications for super duplex stainless steel include swimming pools, desalination, and sewage treatment. Many of these environments use seawater, brackish, or contaminated solutions that require sufficient corrosion resistance.
8.Paper and Pulp
Components used to produce pulp and paper are often made with super duplex stainless steels. While duplex and lean duplex alloys are sometimes used, areas at a greater risk of failure typically use super duplex alloys.
9.Pump Shafts
Super duplex stainless steels often appear in pump shaft components. The popularity of these alloys in these applications comes down to the material’s combined strength and resistance to wear and corrosion.
