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Steel Pipe for Firefighting Applications When it comes to fire suppression equipment like sprinkler systems and water supply pipes for fire hydrants, choosing the right steel is crucial. Not only do you need to have pipes with the right volume to carry sufficient water, gas, or other firefighting substance, but they must be strong enough to withstand corrosion, high temperatures, and high pressure.The properties of steel make it an excellent choice for use in your fire suppression systems. In this article, we’ll look at the standards that govern fire protection pipes, as well as the several applications for these pipes. With the right steel pipe in your fire suppression system, you can rest assured that your system will properly function when you need it most.Fire Protection Pipe StandardsStandards for fire protection pipes are governed by ASTM International, a standards organization that publishes technical requirements for a broad range of services and materials. Formerly known as the American Society for Testing and Materials, they develop and publish standards that have been widely agreed upon for various uses.For fire protection pipes, there are three standards:ASTM A53The broadest standard for fire pipe, ASTM A53 pipes generally come in three thicknesses:Standard (Schedule 40)Extra strong (Schedule 80)Double extra strong (Schedule 160)When it comes to pipe thickness, the lower the Schedule number, the thinner the pipe. ASTM A53 requires that Schedule 40 be used as a minimum for sprinkler systems, although there are no restrictions against using the heavier pipes.ASTM A135This standard covers electric resistance welded pipe. This fabrication process allows lines to have thinner walls while reducing the potential for corrosion. These pipes are required to be at least Schedule 10.ASTM A795ASTM A795 refers to pipes that can be used in sprinkler systems. The walls of these pipes are generally between Schedule 10 and Schedule 40.All three of these pipe types must be either painted red or coated in a red polymer epoxy. They can also come in either black steel or hot-dipped galvanized, which helps reduce corrosion.

Processing services 1.FBESingle Layer FBE coating pipes are applied to transfer water,natural gas, etc. The working temperature is -30℃ to 100℃. They are isused all over the world.External FBE pipes are easy operation, no no pollution themo-stability, and high mechanical strength on bending and impacting.Internal FBE can reduce the secondary pollution of the transport medium, extend the steel pipeline's service life.3.2LPE/3LPEBuried steel pipes with 2PE/3PE coating are used for the transmission of water, oil, gas and other media, the working temperature is 50℃-70℃, it has good performance of anti-corrosive, low water-absorption rate, high mechanical strength.The material is as follows 3PE:1. Epoxy coating (FBE) – chemical resistance and cathodic disbondment resistance;2. Adhesive - to ensure the affinity between the bottom layer and the surface layer;3. Polyethylene (PE) – for mechanical protection and anti-corrosion.4.3LPPThe same as 3LPE, the buried steel pipe with 3LPP coating is used for the transportation of water, oil, gas and other media. Unlike 3LPE, its third layer is polypropylene. And it has more advantages than 3LPE in the following aspects, and of course the price will be higher:1. High applicable temperature: the working temperature of the coating can reach 110℃~150℃.2. Long service life of 3PP at high temperature: DIN30678 says that the life is 30 years at 80°C, 15 years at 90°C, and 8 years at 100°C. (3PE when the temperature is higher than 80℃, the PE layer will soften)3. Good peel strength and indentation hardness at high temperature4. The impact resistance is suitable for a wide range of temperatures5.Hot dipped Galvanized Hot dipped galvanizing is the process of coating to protect steel from rusty corrosion.The hot-dip galvanized pipe is to make the molten metal react with the iron matrix to produce an alloy layer, so that the matrix and the coating are combined. Hot-dip galvanizing is to pickle the steel pipe first. It is cleaned in the tank of ammonium chloride or zinc chloride aqueous solution or mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to the hot dip coating tank. Hot dip galvanizing has the advantages of uniform coating, strong adhesion, strong corrosion resistance, and long service life.6.PaintedThe main colors of spray paint are Black, Red, and Varnish and more. Customers can customize the color according to different use ranges, such as yellow for gas pipelines and red for fire pipelines.Black PaintedThere are three treatment methods for the surface of the fire pipe.The first epoxy coating: Red (Ral3000), Reddish-brown (Ral 3009), Grey (Ral 7012);Second spray paint: Black (Ral 9005), Red (Ral 3000), Reddish-Brown (Ral 3009), Grey (Ral 7012);The third type of Hot Dipped Galvanizing, the thickness of the zinc layer is 50-55 microns/㎡.7.OilingOiling is designed to prevent rusting of steel products. Under the usual conditions of packaging, transportation, handling and storage, the supplier shall guarantee that the surface of the steel pipe will not rust within * months from the date of completion of manufacture. The thicker the oil film, the stronger the anti-rust ability, and the thickness is determined according to the anti-rust time.Oil products, generally used mineral oil type anti-rust oil (solvent type), after a period of time, it will naturally become muddy and clean. The oil film can also be removed with an alkaline aqueous solution.

High quality products BAOLAI has always been able to gain the recognition of our customers by the high quality of our products and services.We have about 1300 employees and 13 production lines, many processing lines and 4 laboratories with advanced technology now. Our annual capacity is approximately 5 million tons and exports of 150,000 MT per year to South and North America, Europe, the Middle East, Africa, Australia and Southeast Asia.If you click on the certificate page, you will find all of our products have the corresponding standard certificates, and it costs a high amount of money to maintain these certificates every year, and we are still insisting on applying for more certifications, in order to deliver the best products to our customers.In addition, we will strictly control the product quality during the inspection process. Before each shipment to customers, BAOLAI's quality inspection and sales staff in charge of your order will double check and test the product to ensure the quality of the goods.

One-stop service As a customer of BAOLAI, you will not have to worry about anything. Just tell us what you need, and we will do our best to satisfy you.About product1.Regular SizeAmerican Standard ASTM specifications are our regular specifications.2.Customized ServiceWe support customer customization, please send us your Outer Diameter (OD), Wall Thickness (WT), Length (L), Quantity and execution Standard, Surface, End. The quotation will be provided to you in time.About surfaceThe purpose of surface treatment is to increase the service life of the steel pipe, reduce the loss, and reduce the secondary pollution of the fluid medium being conveyed. After 30 years of sales experience, the main steel pipe surfaces used by customers are the following: oil,FBE, PE,hot-dip galvanized, pre-galvanized, spray painted (black, red, varnish, etc.) , etc.About Ending ProcessingCut Grooving and Roll Grooving/ Threaded/ Beveling/ Plain EndsCutting/ Bending/ Punching/ WeldingAbout PackingPlastic Packaging/ Wooden Packing

Differences Between Seamless Steel Pipe and Welded Steel Pipe Seamless steel pipe is manufactured by the round steel billet, through hot rolling, cold rolling or cold drawn processes, no seam on the pipe body. Welded steel pipe is manufactured by flat steel plate, with welding seam on the pipe body.How is Seamless steel pipe made.API 5L and ASTM Seamless steel pipe adopts steel ingot or solid tube as raw material through the perforated tube, then can be formed by hot rolled, cold rolled or cold drawn. Hot rolled seamless steel pipe is formed by billet forging, perforation, rolling, shaping and other processes. For Large diameter pipe, and thick walled seamless pipe usually made in this way. Cold drawn seamless pipe used cold-drawn forming technology. The material strength is relatively low, the appearance and internal control surface is smooth. Small diameter and thin wall seamless pipe usually made in this way. The seamless steel pipes are rolled by carbon structural steel, low alloy structure steel or alloy structure steel and stainless steel. Seamless steel pipes applied in different industries: Line pipe for pipelines, thermal services, mechanical industries, chemicals etc.How is Welded steel pipe madeAPI 5L or ASTM welded steel pipe includes LSAW pipe, SSAW pipe, and ERW steel pipe. These pipes are made with steel strip or steel plate. The manufacturing processes first bending the steel plate, then welded into circular, square and other shapes. Welded steel pipe has the characteristics of high production efficiency, low cost and saving material. It has been widely applied to aviation, aerospace, energy, electronics, automobile, light industry and other industries. With strong corrosion resistance in the acidic environment.

Manufacturer As a top manufacturer, Baolai specialize in manufacturing, trading, importing and exporting Fire Fighting Pipes, ERW Pipes, HDG Pipes, Seamless Pipes, Alloy Pipes, Section Steel,  Steel Prop Jack,as well as pipe fittings and accessories, etc.Baolai's Carbon ERW and Seamless steel pipe size is from 1/2"-36" with API, ASTM, BS, DIN and JIS standard, and we have API, CE, JIS, UL, FM, ISO certificates for quality assurance. And our Fire fighting steel pipe has both UL and FM certification.Otherwise, we supply steel structures, such as Steel Prop Jack, Section Steel, Highway Guardrail, Greenhouse and so on. Besides, as a factory established for more than 30 years, we have abundant factory resources. As long as you have a demand for infrastructure products, we can find the lowest price and best quality products for you. Feel free to contact us anytime and send us your requirements.Apart from being the supplier of a comprehensive range of our products, Baolai aims to extend its commitment to customers by enhancing its services and adding new facilities.A dedicated team is tasked to provide technical support so as to advise the proper usage of steel and assist customers in using the products to its best advantage.

The difference between hot-dip galvanizing and pre-galvanizing Hot Dipped Galvanizing is the process of coating to protect steel from rusty corrosion.The hot-dip galvanized pipe is to make the molten metal react with the iron matrix to produce an alloy layer, so that the matrix and the coating are combined. Hot-dip galvanizing is to pickle the steel pipe first. It is cleaned in the tank of ammonium chloride or zinc chloride aqueous solution or mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to the hot dip coating tank. Hot dip galvanizing has the advantages of uniform coating, strong adhesion, strong corrosion resistance, and long service life.Pre-GalvanizingThe processing technology of pre-galvanized steel pipe differs from that of hot-dip galvanizing mainly in the raw materials used. The raw materials of pre-galvanized steel pipes are mainly galvanized steel coils. After the factory processes the galvanized coil into a steel pipe, it is no longer necessary to galvanize again, and it is only necessary to supplement zinc on the welded part. The advantage of pre-galvanizing is that the zinc layer is more uniform and the appearance is more beautiful. The pre-galvanizing process is favored by people because of its low plating cost, excellent protection properties and beautiful appearance, and is widely used in construction, machinery, solar energy and other fields.The thickness of the zinc layer of hot-dip galvanizing is 100-500 g/㎡, and the thickness of the zinc layer of pre-galvanized steel pipe is 40-100 g/㎡.Therefore, hot-dip galvanized steel pipe has better corrosion resistance than pre-galvanized steel pipe.

The delivery time in Baolai Fortune Baolai is a company that integrates industry and trade. Compared with other trading companies, our factory reserves a lot of inventory all year round, so our delivery time depends on whether the factory has inventory.If there is stock and you have no special demand for the product, then BAOLAI can arrange for you to ship within 3-5 days. It allows you to receive the goods as quickly as possible when you need them urgently.If there is no stock, or you have special needs for the product. We need to carry out a series of work such as production and processing according to your order, and the time is about 30 days. (Please note: We cannot guarantee that the shipment must be delivered within 30 days, and 30 days is an approximate range. The specific time is determined by the actual order, and we will do our best to deliver the goods within 30 days to ensure that you receive the goods in the shortest time. the arrival.)If you have order needs, please feel free to contact us.

Baolai Fortune Payment Term 1. The value of the goods ≤1000USD, Payment is 100% in advance.2. The value of the goods 1000USD,Payment is 30% T/T in advance ,balance before shippment. What Is a Telegraphic Transfer (TT)?A telegraphic transfer (TT) is an electronic method of transferring funds utilized primarily for overseas wire transactions. These transfers are used most commonly in reference to Clearing House Automated Payment System (CHAPS) transfers in the U.K. banking system. Telegraphic transfers are also known as telex transfers.3. L/C at sight (For big order, LC at 30-90days can be acceptable)What Is a Letter of Credit?A letter of credit, or a credit letter, is a letter from a bank guaranteeing that a buyer’s payment to a seller will be received on time and for the correct amount. If the buyer is unable to make a payment on the purchase, the bank will be required to cover the full or remaining amount of the purchase. It may be offered as a facility.Due to the nature of international dealings, including factors such as distance, differing laws in each country, and difficulty in knowing each party personally, the use of letters of credit has become a very important aspect of international trade.

Introduction of Baolai Group Baolai Group is a comprehensive enterprise with industry, trade and commerce, which was established in 1991. As the top manufacturer, we specialize in producing, trading, importing and exporting Fire pipes, ERW pipes, HDG steel pipes, Seamless steel pipes, LSAW steel pipes, SSAW steel pipes and building materials.Tianjin Baolai Fortune is one of the trade companies of Baolai Group, which is focus on fire pipes, seamless steel pipes and welded steel pipes in ASTM, BS, DIN and JIS standards. Baolai have about 1300 employees and 13 production lines, many processing lines and 4 laboratories with advanced technology now. Our annual capacity is approximately 5 million tons and exports of 150,000 MT per year to South and North America, Europe, the Middle East, Africa, Australia and Southeast Asia. Our factory The Service we offer The processing services we can provide are welding, bending, cutting, punching, pipe end groove, threading or bevel processing, surface painting, oiling, galvanizing, FBE, 3PE, 3PP, etcApart from being the supplier of a comprehensive range of our products, Baolai aims to extend its commitment to customers by enhancing its services and adding new facilities.A dedicated team is tasked to provide technical support so as to advise the proper usage of steel and assist customers in using the products to its best advantage.