Main characteristics of LSAW steel pipe

 LSAW steel pipe (LSAW for short) is a professional expression term for straight submerged arc welding steel pipe. It is a pipe produced by using a single medium thick plate as raw material, pressing (rolling) the steel plate into a tube blank in a mold or forming machine, and expanding the diameter by double-sided submerged arc welding.

        1) The steel pipe has a longitudinal weld, and the inner and outer welds are welded by one submerged arc welding.

        2) After the overall mechanical expansion treatment, the internal stress of the steel pipe is small and evenly distributed, which can effectively prevent stress corrosion cracking, with high dimensional accuracy and is convenient for on-site welding construction.

        3) Adopting the process of pre welding and finish welding, the welding process is stable and the weld quality is high.

        4) It is easy to realize NDT during production and NDT recheck in the field during use.

        5) The product specification range is large. It can produce small diameter and large wall thickness steel pipes as well as large diameter and large wall thickness steel pipes.

How to make seamless pipe

 Seamless piping begins as a solid cylindrical hunk of steel called a billet. While still hot, billets are pierced through the center with a mandrel. The next step is rolling and stretching the hollow billet. The billet is precisely rolled and stretched until it meets the length, diameter and wall thickness as specified by the customer order.

　　Some seamless pipe types harden as they’re manufactured, so heat treatment after manufacturing is not required. Others do require heat treatment. Consult the specification of the seamless pipe type you’re considering to learn whether it will require heat treatment.

Standard For Seamless Pipe

 Standard For Seamless Pipe

Standard
GB standard	Seamless steel pipe for structural purpose	GB/T8162-2008
	Seamless steel pipe for liuid service	GB/TB8163-2008
	Seamless steel tubes for low and medium boiler	GB/3087-1999
	Seamless steel tubes for high pressure boiler	GB/5310-1995
	Seamless carbon steel marine tubes	GB/T5312-1999
	High-pressure seamless steel tubes for chemical fertilizer equipments	GB/6479-2000
ASTM standard	Black and hot-dipped zinc-coated steel pipes welded and seamless	ASTM A53
	Seamless carbon steel for high temperature service	ASTM A106
	Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes	ASTM A179
	Seamless carbon steel boiler tubes for high pressure	ASTM A192
	Seamless Medium-carbon boiler and superheater tubes	ASTM A210
	Seamless carbon for mechanical tubing	ASTM A519
API standard	Seamless steel pipe for casing	API Spec 5CT
	Seamless steel pipe for line pipe	API Spec 5L
DIN standard	Seamless steel tube for elevated temperture	DIN 17175
	Cold drawn seamless prevision pipe	DN2391
	Seamless circular unalloyed steel tubes subject to special requirements	DIN 1629

How to Clean Surface Defects of Pipe Blank

      The quality of the tube blank has an extremely important influence on the quality of the seamless steel tube. Any tube blank that does not meet the quality requirements must not be fed. The surface defects of the tube blank must be removed.

　　1. Tube blank quality inspection method:

　　a. Visual inspection: surface quality

　　b. Low magnification organization: sulphur printing, acid leaching, industrial hydrochloric acid or copper chloride solution check cracks, bubbles, loose, white spots, inclusions and other distribution.

　　2. Clearance of tube blank surface defects:

　　a. Flame cleaning:≤0.4%c Surface defects of tube blank.

　　b. Air shovel cleaning: suitable for the cleaning of local defects on the surface of tube blanks.

　　c. Wheel cleaning: mainly used for tube blanks that should not be used for flame cleaning.

　　d. Turning and cleaning: It is mainly used for the cleaning of surface defect of pipe blanks with high added value and quality requirements, such as stainless steel blanks, rust blanks: such as P91 and P92.

　　In short, the inspection and inspection of the quality of the tube blanks and the necessary cleaning of the surface defects of the tube blanks are the basic prerequisites for ensuring that the blanks used in the production of seamless steel tubes meet the quality requirements.

Application Of LSAW Pipe

       1. According to the specification of pipe API 5L Spec, we take testing for the basic metal and welding metal. Meanwhile, we have other Specifications. Such as DIN, EN, ASTM, and GOST. Also, the LSAW steel pipe can welded with flanges. Welding lifting eyes and other parts according to clients’ requirements.

　　2. It also can used as pipe boots or pile boots which acted as protecting a section.

　　3. Except used as pipe boots. The LSAW steel pipe is also used for transporting fluids like water, oil & gas. As well as used for offshore projects and underground constructions. These products are producing in China. And exported to other countries. For example Australia, Canada, South American, Europe, Malaysia, India, Pakistan, Africa, etc.

 

The origin of Bong

　　It is recorded that bongs were used as far back as 2400 years. The traditional water pipe, airtight, collects heavier particles and water-soluble molecules, preventing them from entering the smoker's airways and creates a smoother smoke. Typically bongs are made of glass, acrylic or silicone and are used for dry materials.

　　Bongs can be converted to rigs for use with oils and concentrates with the use of adapters and converters; however, if your looking for something that's made specifically for concentrates be sure to check out our Rigs category. Bongs can come in a wide variety of shapes, styles and colors and can have several different features from percolators and ice catchers to create a smoother smoke to fixed downstems, splashguards and bent mouthpieces to add to the functionality and style of your bong. You will have plenty of choose from at SMOKEA, take your time and enjoy your visit.

History of the Bong

 History of the Bong

　　While glass water pipes certainly gained popularity in the western world during that time, the water pipe itself actually has roots that go back long before the Vietnam War, or even the founding of Vietnam itself.Many believe the water pipe was a fancy upgrade to rolled cigarettes, invented during the hippie era. Right now, extreme users can make their own pipes out of just about anything they have lying around. As a tribute to these innovators, some glass makers include those various objects into their creations, like this clever design

　　Current discoveries have dated the earliest found water pipe at roughly 2400 years ago, which were solid gold and used by Scythian tribal chiefs who dwelt in and around the land of modern-day Russia. From previous discoveries, we know that ancient water pipes were used in parts of Africa and central Asia for centuries before they were given the classic name of “buang” describing the Thai bamboo pipes used in the 16th century. This is where we derive the English version of the water pipe from, which are also known as “bongs”.

 

How To Clean A Bong Without Isopropyl-Alcohol

　　Vinegar and baking soda is a science experiment turned bong cleaning method.

　　Here is what you will need:

　　Large pot, big enough to completely submerge your bong or bowls

　　4 cups white vinegar

　　2 cups baking soda

　　Toothbrush or pipe cleaner

　　Gently set the bong inside the large pot and pour one cup of baking soda into the neck. Shake it around into the various crevices, especially the grimier bits.

　　Next, pour two cups of vinegar down into the neck channel. Instantly, this mixture will fizz up to loosen the resin. You may wish to swish around to get into the hard to reach areas. Allow to subside and let the bong sit for five to ten minutes.

　　Add remaining vinegar into the pot, then fill the pot with enough water to cover the bong completely. Add the remaining baking soda. Slowly bring the water to a simmer over low heat. Over the next hour, continue to simmer, which will dislodge the remaining gunk. Keep topping up with water to ensure the bong is always covered.

　　Once the resin has loosened, remove it from heat. When it's cool enough to touch, use the toothbrush to finish cleaning the glassware.

　　Denture tablets like those you may have seen from 1990's television commercials are making a come back as bong cleaners. Just like they break apart built-up plaque on dentures, they can help break up resin and particles on your dirty bong. Plus, unlike isopropyl alcohol, they are readily available at all supermarkets and drug stores.

　　You'll need the following items to get started:

　　4 to 6 Denture tablets

　　Large pot

　　Hot water

　　Toothbrush

　　Begin by placing a few tablets inside your dirty bong. Place the bong inside the large pot, and toss in a few more denture tablets while you are at it.

　　Fill the pot with hot but not boiling (remember you could crack glass with extreme temperature changes). Wait patiently as the denture tablets fizzle to break apart the sticky oils.

　　After ten minutes, remove the bong from the pot and rinse with hot water. While rinsing, use a toothbrush to clean the remaining dirty areas.

 

Choosing the right bong

　　It is recorded that bongs were used as far back as 2400 years. The traditional water pipe, airtight, collects heavier particles and water-soluble molecules, preventing them from entering the smoker’s airways and creates a smoother smoke. Choosing the right bong for your needs can really enhance your smoking experience. However this can be a challenge for new smokers or those who are accustomed to rolling their own smoke. Although it may appear that all bongs are the same, there are many difference that can alter your smoking experience. Lets dive into some important features, quirks and types of bongs to help you find your perfect piece.

　　Typically bongs are made of glass, acrylic or silicone and are used for dry materials. Bongs can be converted to rigs for use with oils and concentrates with the use of adapters and converters; however, if your looking for something that's made specifically for concentrates be sure to check out our Rigs category. Bongs can come in a wide variety of shapes, styles and colors and can have several different features from percolators and ice catchers to create a smoother smoke to fixed downstems, splashguards and bent mouthpieces to add to the functionality and style of your bong.

glass bong Funnel---LD A

 glass bong Funnel---LD A

       1.Joint male size:14.5mm;Height:10.63inch; width:3.94inch;weight:0.85ibs

　　2.This bong is made of environmentally friendly and non-toxic high-grade borosilicate glass and hand-made at high temperature to make it more durable and not easy to break.

　　3.This bong is carefully packed, The packaging is very tight and private.

　　4.One of the most styles of REAMIC, the perfect triangular bucket design, high-quality thick glass, can be used for a long time, after ten processes of firing, and high temperature baking, the quality is superb, you can place ice cubes to increase the product The feeling of use, plus a layer of bubble filter, makes him use better.

glass bong Grey wolf-HTL A

 glass bong Grey wolf-HTL A

       This bong in 8.7 inches,includes: Handmade glass bong, Downstem, 14.5mm bowl.

　　This is mini handmade bong made at a high temperature, convient to carry everywhere.

　　This bong has an ice holder in which ice cubes can be placed when smoking. It will give you a cool smoking experience.

　　Bubbler bong is carefully packed , The packaging is very safe and private.

glass bong Little thing-XBD A

glass bong Little thing-XBD A

      The bong in 6.2 inches,includes: Handmade clear and green glass bong, 14.5mm bowl Downstem.

　　This simple beaker bong is easy to use and will last for years if cleaned and cared for. We recommend using a metal strainer in the bowl to prevent unwanted ash or debris from getting into the bongs water.

　　One of best-selling smoke bongs, Perfect for use on the go, this glass bong is ideal for parties, festivals or small sessions at home.

　　The glass bong is carefully packaged, so you don't need to worry about damage during transportation. Since the glass bong is blown by hand, the size may vary by 1-2 cm.

　　Please trust the quality of service. If you receive any dissatisfaction, you can contact us at any time,we will solve the after-sales problems for you.

glass bong Little red hat-XHM A

 glass bong Little red hat-XHM A

       single glass bong,in 10 inches,including a transparent handmade glass bong,downstem, a 14.5mm bowl.

　　Handmade glass bong is exquisite, cheap and high-quality.

　　This is a new glass bong. its can bring a good experience for smoking.

　　Bubbler bong is carefully packed, you don’t need to worry about the damage of shipment.

glass bong Pumpkin-NG A

 glass bong Pumpkin-NG A

       single glass bong,in 10 inches,including a transparent handmade glass bong,downstem, a 14.5mm bowl.

　　Handmade glass bong is exquisite, cheap and high-quality.

　　This is a new glass bong. its can bring a good experience for smoking.

　　Bubbler bong is carefully packed, you don’t need to worry about the damage of shipment.

glass bong Starry Sky---XK A

 glass bong Starry Sky---XK A

- High Quality Borosilicate Glass
- Height : 11"inches
- Color : Blue
- Stemless Downstem :  Bowl Joint 14mm / Neck Joint 14/18mm
- Thickness : 5 mm
This is a beautiful piece of art to add to your glass collection!  smooth hit every time! This product has a built-in stem with a female joint size of 14mm. It also includes a 14mm blue bowl attachment. The Blue Color is applied evenly throughout the tool to give it that beautiful look! Reanice has been producing top-quality glass water recycler, and accessories for the past 5 years. Our Glass Blowers have over 10 years’ experience in the trade and are very passionate about the craft. All products are made of the finest borosilicate glass and are carefully manufactured in a state-of-the-art facility in China.

glass bong Luminous---Zombie A

 glass bong Luminous---Zombie A

       This bong includes: Handmade glass bong, Downstem, 14.5mm bowl.

　　This is mini handmade bong made at a high temperature, convient to carry everywhere.

　　This bong has an ice holder in which ice cubes can be placed when smoking. It will give you a cool smoking experience.

　　Bubbler bong is carefully packed , The packaging is very safe and private.

glass bong Leave blank--LB A

 glass bong Leave blank--LB A

       Glass bong set,Including a transparent handmade glass bong,downstem, a 14.5mm bowl and a small leaves glass pipe.

　　Handmade glass bong is exquisite, cheap and high-quality.

　　This is a new glass bong set. its can bring a good experience for smoking.

　　Bubbler bong is carefully packed, you don’t need to worry about the damage of shipment.