Duplex Steel Plates: Everything You Need To Know

Duplex Steel Plates (short form of Duplex Stainless Steel) are the widely used products in most of the applications. It is a unique combination of high strength, hardness and excellent corrosion resistance. This is a result of its metallurgical structure which consists of two phases i.e., austenite and ferrite. This special structure provides better strength and enhanced corrosion resistance property than stainless steel and mild steel.

Chemical composition of Duplex Steel

20-28% Chromium (Cr), up to 5% higher Molybdenum (Mo), up to 9% Nickel (Ni), and 0.05-0.50% Nitrogen (N)

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Stainless Steel v/s Duplex Steel Plates  

The main difference between duplex steel and stainless steel (SS) is in their chemical compositions. The duplex has higher chromium (up to 28%) and molybdenum contents than that of SS containing only 11% chromium and lower molybdenum.

The higher the chromium content, the higher the yield strength. Thus, this difference in the composition makes duplex-grade steel better corrosion-resistant material than stainless steel. Though both the materials have similar toughness and durability, the former has higher resistance levels to chloride stress corrosion and chloride pitting corrosion and twice the stronger than the latter.

Super Duplex v/s Duplex Steel Plates 

Super duplex, as the name implies, is superior than Duplex Steel Plates because of the higher contents of Cr, Ni, Mo, N and even W which endorse the formation of intermetallic phases, making it more resistant to impacts and stronger than duplex steel.

Features & Properties

1. Excellent resistance against corrosion, intergranular corrosion, chloride pitting, stress corrosion, cracking.

2. Due to high chromium content, Duplex Steel Plates can withstand high temperature of 300°C and above.

3. Machinability & weldability

4. High tensile strength and yield strength 

5. Highly durable than other types of stainless steel

Specifications: Size, width, length and thickness

The Duplex Steel Plates are usually heat treated at about 1100-Degree C to 1250-Degree C. They are also annealed in order to enhance their properties. The final surface finish options include hot rolled, cold rolled, satin, etching, embossed, sand blasted, hairline, and other

They are available in various lengths such as 2000mm, 2440mm, 2500mm, 3000mm, and 6000mm. The thickness of the plates varies from 4 mm to 100 mm, and the width varies from 1000 mm to 3500 mm.

Area of Application

Duplex Steel Plates are used in widest range of applications, ranging from industrial to chemical. Besides, they are also used in automobile, chemical processing units, chemical trucks, architecture, construction and building industries, etc. 

ASTM A240 Duplex 2205 Plate is mostly used in food processing equipment, packaging equipment, pharmaceutical manufacturing equipment, offshore oil drilling industry, petrochemical industry, power generation plants and others, while the grade Duplex Steel JIS SUS S31803 plates is extensively used in the pulp and paper industries.

All the grades of Duplex Steel Plates are manufactured, tested, inspected and verified in accordance to the national and international quality standards to ensure optimum strength and structural property required by vast industries

Oxygen Generator: Economical Source of Oxygen

An Oxygen Generator is the soul of multiple industries which require oxygen (O2) as a main component to operate, aid other equipment, & produce beneficial results on daily basis. From small-sized like a soda can to large-sized like a bus, this device is manufactured utilizing cutting-edge technology to ensure demands are met as per national & international quality standards.

How Does An Oxygen Generator Work?

The working principle of an O2 generator is to supply oxygen-rich gas after compressing & filtering the ambient air, followed by adsorption of nitrogen onto zeolite mineral (an adsorbent) that acts as a “molecular sieve”.

A oxygen concentrator consists of an air compressor, a pressure equalizing reservoir, two cylinders filled with zeolite pellets, and some valves &tubes. It uses Pressure Swing Adsorption (PSA) technology – a highly efficient & reliable technology for small & medium capacities. 

It takes in ambient air, compresses & filters the air. Then the compressed air enters the first column filled with the adsorbent (zeolite) which traps nitrogen & some other gases, leaving oxygen as the primary gas remaining to flow through. When the column is active, the second column works to regenerate & switch place with the first one at the end of the cycle. This makes the device to produce a constant flow of purified oxygen.

The produces 90-95% pure oxygen gas. Repetition of the process can be done to generate over 99% pure oxygen. On the plus point, this same device can also be used to generate nitrogen by using PSA technology. 

Vast Area of Applications 

The Oxygen Generator is used in an extensive range of applications, including medical, pharmaceutical, gold mining fish farm, aquaculture, sewage & waste water treatment, oil refineries

It is an economical source of oxygen.

Portable oxygen generator is used as medical device in hospitals & homes. It is used in steel manufacturing industry, glass blowing, pulp & paper manufacturing, welding & several other industries.  

Features & Benefits

An Oxygen Generator has the capacity to produce around 5 to 5,000 Nm3/h of 90% to over 99% pure oxygen gas. This feature makes it ideal for onsite installation in a wide range of applications. Best features include:

    • Control system with touch screen panel

    • Designed for dynamic pressure loading

    • Built-in purity analyser for non-stop monitoring of oxygen 

    • Automatic on/off 

    • Reliable: It is built for hassle-free operation

    • Robust design

    • Data-logging (saved on memory card)

Conclusion

Businesses who need oxygen in bulk often figure out to obtain oxygen tank from other companies selling them. If the need is large, it would be beneficial, cost-effective to purchase your own Oxygen Generator at Tradeindia to produce O2 on site.  

How Oxygen Cylinder Is Different From O2 Tank?

Have you ever wondered how your body functions like a 24x7 machine to breath in Oxygen (O) & breath out Carbon dioxide (CO2)! The nature is unexplainable. But when it comes down to machinery world, it requires a set of equipment & procedures to do so.

Atmospheric air is the natural source of oxygen, containing 20.8% oxygen. This concentration is enough for animal breathing process, fueling, & metal corrosion. But there are numerous applications that require concentrated amount of oxygen to operate & that’s when Oxygen Cylinder comes into the play. 

“Check out list of Oxygen Cylinder manufacturers, suppliers & dealers at Tradeindia.” 

Constructional Material

This lightweight, portable & circular-cylindrical high-pressure container is manufactured by hot forged seamless steel. The standard pressure is 200 (3000 psi) bars. It’s being used in the manufacturing of welding & cutting, steel & monel, medical breathing gas, scuba diving, & emergency backup in aircraft. 

Carbon steel is also a good corrosion resistant material that is being used. Brownmillerite-type materials are also used. Other materials include glass-reinforced plastic, polyethylene & thermoplastic.

Difference Between Oxygen Cylinder & Oxygen Concentrator

You will always find the use of terms oxygen cylinder & oxygen concentrator interchangeably. In contrary to that, they aren’t same. 

Oxygen Concentrator: Using rapid Pressure Swing Adsorption (PSA) mechanism, the concentrator separates oxygen from the gaseous mixture. It uses zeolite mineral as adsorbent to adsorb nitrogen from the atmospheric air, leaving other components to pass through, leaving oxygen as the only remaining gas component. It supplies oxygen on continuous flow.

Oxygen Cylinder: It is a medical oxygen tank that contains a specific amount of oxygen & can run out after a while. These cylinders can be refilled & reused for multiple times, however, may require periodic maintenance service. 

Types of Oxygen Cylinders

• Compressed gas system: It’s an O2 concentrator that is widely used as a stationary & portable medical oxygen provider at medical facilities & homes. It supplies O2 on continuous flow. 
• Unpressurized oxygen cylinder: It aids in breathing at high altitudes & in emergency situations too. 
• Cryogenic storage tank: It’s a vacuum-insulated flask that contains liquid oxygen. It is used in gas industries, submarine & aerospace. 
• This system delivers O2 to the users via oxygen mask, oxygen tent, nasal cannula, full face diving mask, diving helmet, built in breathing system (BIBS), oxygen rebreather, demand valve, & hyperbaric oxygen chamber.
• It contains about varying purity of compressed oxygen. Its durable in nature, however, require inspection & pressure test to ensure its structural & functional stability. It is supplied in various sizes & pressure capacity, depending on the application. 

Area of Application

An oxygen cylinder is commonly used in medical facilities, homes, aircraft emergency breathing, diving, welding & cutting, metallurgy, aquaculture industry, military or disaster situations, fuel gas cutting, lampworking torches, etc.

Oxygen Plant: Unveil Beneficial Steps Towards Peak

How long can you live without water? The fact states a person can survive without water for about 3 days. But, can you live without oxygen for even a minute? No, right! Likewise, the development of Oxygen Plant is the soul of numerous applications. 

What Is An Oxygen Plant?

An Oxygen Plant is an industrial equipment that uses ambient air as feedstock which is then compressed & filtered. Utilizing either of the two cutting-edge techniques i.e., pressure swing adsorption or membrane separation technique, the plant separates oxygen (O2) from other components of gaseous mixture.

These two methods have facilitated in the development of the industrial positions & the growth of multiple companies dealing in this business to reach a peak & gain trust across the nation.  

However, the PSA (pressure swing adsorption) has the highest reliability for the production of at least 85% to 95% pure oxygen for intended industrial purpose. It employs several types of absorbents, such as resin, activated carbon, zeolite, silica gel & activated carbon, to ensure high efficiency at low price. 

Vast Applications

These Industrial Oxygen Plants are used in numbers of applications due to its offered enormous benefits at low running cost & high efficiency. Such industrial applications include medical, pharmaceutical, waste management, fish farming, electronic, chemical & petrochemical, metallurgy, water treatment & several others. In oil & gas industry, it is used in large volumes as an oxidizer in chemical reactions.

Benefits & Features

The worth of a product is evaluated by its properties & offered widest range of benefits. Such advantages of Oxygen Plant include:

• Energy efficient: Manufactured using cutting-edge technology, an oxygen plant consumes less electricity than conventional methods.
• Automatic control: The equipment functions automatically via PLC (programmable logic controller) which ensure zero human error, as well as, technical faults.
• Easy installation: The installation process is simplified & requires no human energy to operate.
• Cost-effective: The plant is supplied at low price & consume less electricity. 
• Enhanced failure safety: This modern machine comes equipped with high-level safety features to ensure damage to itself & the industry.
• Fast production: Due to the incorporation of PLC technology, the equipment starts & ends quickly.
• It produces low noise as compared to conventional equipment.
• It is light in weight & has moderate dimensions.

An oxygen plant is manufactured using high-quality materials, like stainless steel & carbon steel, & has fine & smooth surface finishing such as hot-dipped galvanization, powder or paint coating, which ensure resistance against corrosion, low-to-high temperature variations, chemical, ultraviolet (UV) & other impacts, which directly impact its lifespan by increasing it multiple decades. 

In a nutshell, the Oxygen Plant is as same as a soul to our body. Numbers of industries using this plant is increasing day by day as the world continue to develop. When you’re ready, explore ‘inexpensive’ Oxygen Plant manufacturers, suppliers & dealers at Tradeindia.  

IS N95 MASK WORTH TO PROTECT YOUR RISKY LIVES?

There is a law which directs employers to protect their employees or workers in their facilities in any of the way. What do you comprehend from such measures apprehended by the Indian government? It is because public safety matters the most i.e., life matters more than any profession, work or business/industrial progress. Therefore, to protect the most valuable thing to the earth which is your lives, the N95 mask is amongst the innovations which is worthy to safeguard ourselves.

With the latest advent of novel Coronavirus [COVID-19], the need of N95 mask is increasingly hiking day by day worldwide. In accordance to the national and international standards, the manufacturers of these particular masks are putting all their efforts to produce high-profile respirators for all healthcare facilities, small or large-scale hospitals, nursing homes, etc.  

Facilities must ensure their at-risk employees are completely prepared to use respiratory protection along with other personal protective items. With world fighting outrageous coronavirus, scientists are pulling an all-nighter to develop a fighting mechanism, while also labeling N95 mask as among best protective measures.   

Why N95 Mask Is So Popular?

Renowned for its higher level of respiratory protection against airborne pathogens i.e., bacteria, germs, viruses, and other infectious particles, the N95 mask is air-purifying respirator (APR) used to filter at least 95 percent of airborne particles (0.3 micron-sized test particles). Comparatively, it is thicker than any other masks (or surgical mask) and fits around the mouth, nose, and cheeks in order to provide full protection from inhaling any viral particles.

It is widely used by healthcare specialists, nurses, etc., who are doing patient activities having some infectious disease or symptoms posing a similar risk. It is designed to prevent the inhalation of small viral particles through the mouth or nose. However, it is highly recommended not to use this respiratory protective equipment at areas exposed to oil particles because they don’t then to resist oil particles. And, in addition to such an issue, P95 mask is manufactured precisely.

The N95 type is the most popular, as well as, common air particulate-filtering facepiece equipment. It is the popular example of a mechanical filter respirator that safeguards you against air-borne particles but not oils, vapors, or gases.

Vast Advantages of N95 Mask

Till now, you must have acquired enough shreds of information relating to the popularity and usage of N95 mask globally. Now, there are a few points that will complete this whole understanding cycle, which include the huge benefits of this particular respiratory – another aspect of N95 mask’s popularity. 

Did you know this mask incorporates a filtration layer inside of it which aids filtration of all infectious particulates? It is made of fine webbing of synthetic polymer fibers. It is double-layered to provide topmost filtration benefits which make it superior to surgical masks or other types. They are manufactured in different sizes & colors, after passing it through number of testing procedures by a professional team which includes engineers, safety & healthcare personnel, supporting team, etc.

Is N95 Mask REUSABLE OR DISPOSABLE?

In this limited brief, your query about “Is N95 mask reusable or disposable?” would be solved. Though N95 masks are preliminarily manufactured and labeled as disposable respiratory equipment, some researchers have paved out a way for cleaning the masks for reuse purposes in the midst of emergency shortages considering this method as a crisis strategy in order to ensure continued availability.  

The respirator manufacturers recommend reusing N95 masks a limited number of times post being used & removed. The preliminary data suggest to reuse them up to five more items as long as their functional and structural efficacy is maintained, as well as, their filter materials aren’t damaged or soiled. 

All measures are taken considering your life safety which guarantees credibility at international level as well. It’s too early to risk your life and be a part of world extinction (biotic crisis). So, why not to protect ourselves and employees working in facilities to maintain a healthy life cycle.