"Under the "Zero Growth Action Plan for the Use of Chemical Fertilizer by 2020," China should vigorously develop green fertilizers and develop value-added fertilizers, and humic acid potassium compound fertilizers will play an important role in these." The first Chinese humic acid potassium salt was held recently. At the Compound Fertilizer Summit, Zhao Bingqiang, a researcher at the Institute of Agricultural Resources and Agricultural Research of the Chinese Academy of Agricultural Sciences, said.

According to Zeng Xiancheng, chairman of the China Humic Acid Industry Association, China currently has 4,636 potassium-containing fertilizer registration products, of which 1,527 are humic acid-containing fertilizers, accounting for about one-third. "Over the past 30 years, a large number of experimental studies have shown that potassium humate can increase the content of available potassium in soil, increase the absorption and utilization of potassium fertilizer, promote crop yield, improve crop quality, and enhance crop resistance." Zeng Xiancheng said.

The participants in the conference believed that because humic acid has the function of soil remediation and improvement, it can effectively avoid the phenomenon of soil acidification and compaction caused by long-term use of traditional fertilizers, which is beneficial to the continuous development and utilization of farmland. At present, in the face of the strong promotion of “zero growth action of chemical fertilizers,” humic acid potassium and humic acid potassium fertilizer production enterprises will become more and more popular.

Professor Chen Xinping from the College of Resources and Environment, China Agricultural University, is currently working on a special research project on “Research on Potassium Fertilizer Efficiency and Potassium Substitution Technology”. He said that with the increasing demand for potash fertilizer worldwide, the humic acid potash fertilizer industry is developing rapidly, and its product range is also becoming more and more abundant. Single-fertilizers, compound fertilizers, and water-soluble fertilizers containing humic acid potassium will become more and more. It is welcomed by people.

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DUPLEX STAINLESS STEEL

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:
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

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.

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

Duplex Steel Flange

Duplex Steel Flange,Duplex Stainless Steel Flange,Super Duplex Steel Flange

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