Duplex Stainless Steels Available
Yuhong Group supplies LDX2101, 2205, Ferralium 255, Zeron 100 and LDX2507 in the form of plate, sheet, strip, bar, pipe, tubing, pipe fittings, flanges and weld wire.
Duplex Stainless Steel Overview
Duplex Stainless Steels, also referred to as austenitic-ferritic stainless steels, are a family of grades with about equal proportions of ferrite and austenite. These steels have a duplex microstructure which contributes to their high strength and high resistance to stress corrosion cracking. Due to their high content of chromium, nitrogen and molybdenum, duplex steels offer good resistance to local and uniform corrosion. Duplex stainless steels have good weldability.
Today, modern duplex stainless steels can be divided into three groups:
Of the duplex grades, duplex 2205 is the most widely used. However, the super duplex steels like Zeron® 100 and LDX2507 are excellent for servicing severe corrosive environments, such as offshore and marine applications. Lean duplex 2101 is available as an economic alternative to 300 series stainless steels.
Duplex Steel Flange,Duplex Stainless Steel Flange,Super Duplex Steel Flange YUHONG GROUP CO.,LIMITED , https://www.jessro-pipefittings.com
DUPLEX STAINLESS STEEL
Lean Duplex such as LDX2101
Standard Duplex such as 2205, the work-horse grade accounting for more than 80% of duplex usage
Super Duplex such as Ferralium 255 and Zeron 100 and LDX2507
What are the Characteristics of Duplex Stainless Steels ?
Very good resistance to uniform corrosion
Very good resistance to pitting and crevice corrosion
High resistance to stress corrosion cracking and corrosion fatigue
High mechanical strength
Good sulfide stress corrosion resistance
Good abrasion and erosion resistance
Good fatigue resistance high energy absorption
Low thermal expansion
Good weldability
In what Applications are Duplex Stainless Steels® used ?
Oil and gas equipment
Offshore technology
Seawater desalination plants
Chemical industry, especially when handling chlorides
Flue-gas cleaning
Desalination plants and seawater systems
Pulp and paper industry
Cargo tanks and pipe systems in chemical tankers
Firewalls and blast walls on offshore platforms
Bridges
Storage tanks
Pressure vessels, reactor tanks, and heat exchangers
Rotors, impellers and shafts
Vertical pipe pump for quick maintenance points
When the vertical pipe pump failure, how to quickly maintain it? The following small series to introduce the vertical pipe pump for quick maintenance points. Vertical pipeline pump for quick maintenance points 1) Each 500 hours of operation, should loosen the screw plug on the seal seat, with a syringe out of the chamber residual oil; to the sealed chamber filled with qualified 20 machine oil to the chamber half the volume (Plus the appropriate amount of oil inspection method: running the pump, the oil does not come out to the outside); tighten the screw plug to prevent leakage occurred. 2) If motor noise is found to increase and the temperature rise at the bearing is abnormal, check the lubrication of the motor bearing. Such as grease discoloration, dirty should be promptly replaced. 3) When the sealing seat is found to have oil leakage phenomenon, you can loosen the screw plug on the sealing seat and run the oil pump. When there is oil coming out and the taste of aviation fuel tastes, it can be judged: the mechanical seal fails. Stop using the vertical pipe pump for quick mechanical seal replacement. Extended reading: Top ten brands of motor China Construction Water Exhibition Pump manufacturers ranked ptc exhibition industry Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Daohui (QQ / WeChat:) http://beng.liuti.cn/ (service Hotline:)