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The difference between pipe nipple and pipe coupling

What is a pipe nipple? Pipe nipple is a length of straight pipe with male threads on both ends. It is one of the most popular category of pipe fittings. It is a connector or a coupling threaded on both ends. Pipe nipples are used to allow plumbing to be connected to a water heater or other plumbing. They are used to fit straight end hose or pipe. A combination of pipe nipples are recommended for low-pressure discharge and suction service for various compatible liquids and not for compressible products like air, nitrogen or steam.  The length of the pipe […]

2017-05-31 read more...
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The difference between NPT and BSP seals

Thread: noun. a helical ridge on the outside of a screw, bolt, etc. or on the inside of a cylindrical hole, to allow two parts to be screwed together. Pipe threads are either straight (parallel) or tapered, while both options have a couple of design options themselves – threads may be according to national piping standard or british standard; be right-handed (RH) or left-handed (LH). Neither NPT, nor BSP is superior to the other one and the selection is driven by a number of factors, including geographical location, equipment size and industry. Pressure systems on board of ships use BSPP […]

2017-05-31 read more...
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The production process of stainless steel pipe bend

According to the different manufacturing methods, the stainless steel pipe bend can be divided into three types, namely, the bending pipe, the punching pipe and the welded pipe. Which can be divided into two types of bending bending and bending. When the stainless steel tube for bending the pipe along the longitudinal direction under pressure, leading to pipe wall thickness of the pipe is shortened, the lateral pipe subjected to tensile, elongation, wall thinning and tube; center without force, deformation will not occur. The cross section of stainless steel tube is changed from round to oval. Bend in the production […]

2017-05-17 read more...
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What is Pipe fitting?

What is Pipe fitting? Pipe fitting is the operation of repairing or installing tubing or piping systems which convey gas, liquid, and solid materials occasionally. It also involves selecting and preparing tubing or pipe, joining it by several means and location and repairs of leaks. Fitters work with various tubing and pipe materials such as copper, aluminum, steel, plastic and iron. Pipe fitting is not referred to as plumbing although the two are related, but have separate trades. Stainless steel pipe fittings are made of stainless steel, so it is made of stainless steel pipe fitting, which contains: stainless steel elbow, stainless […]

2017-05-01 read more...
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The welding technology of 2205 duplex stainless steel

In the stainless steel processing technology, welding processing of 2205 duplex stainless steel is a very test of welding skills, this article is concerned about such stainless steel welding processing considerations. The second generation of duplex stainless steel is generally called standard duplex stainless steel, its composition is characterized by ultra-low carbon, nitrogen, steel in the typical composition is 22% chromium, 5% nickel, 0.17% nitrogen, and the first generation of double Compared with stainless steel, 2205 duplex stainless steel increased the nitrogen content and enhanced the resistance to stress corrosion and pitting resistance in acidic media with high chloride ion […]

2017-04-27 read more...
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The cutting processing technology of stainless steel pipe

Without influence on the surface of the stainless steel pipe, how to quickly cut stainless steel pipe? One way is to use a grinding wheel cutting, this is now use most a way of cutting, is actually with grinding wheel as the cutting tools for cutting stainless steel pipe, this way of cutting cost is the cheapest, but it is easy to produce many burrs after cutting, lead to later also need to add deburr process, if there is no requirement, some manufacturer of burr then this method is one of the most practical, the lowest cost. There is a […]

2017-04-18 read more...
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ASTM A335 / A335M – 15a: Standard Specification for Seamless Ferritic Al……

ASTM A335 / A335M – 15a Standard Specification for Seamless Ferritic Alloy Steel Pipe for High-Temperature Service 1. Scope 1.1 This specification2 covers nominal wall and minimum wall seamless ferritic alloy-steel pipe intended for high-temperature service. Pipe ordered to this specification shall be suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding. Selection will depend upon design, service conditions, mechanical properties, and high-temperature characteristics. 1.2 Several grades of ferritic steels (see Note 1) are covered. Their compositions are given in Table 1. NOTE 1: Ferritic steels in this specification are defined as low- and intermediate-alloy steels containing up to and including 10 % […]

2017-04-17 read more...
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EN 10216: EU standards

EN 10216-1: EU standards  EN 10216-2: EU standards Purpose:  For the boiler pipes, tobacco pipes, super heater tubes, air pre-heater tubes.  The main production steel grades:  P195, P235, P265, P195GH, P235GH, P265GH, 13CrMo4-5, 10CrMo9-10 and so on.  Following consultations, can also be supply other grades of steel pipe.   Mechanical properties:       Standard Grade Tensile strength (MPa) Yield strength (MPa) Elongation (%) EN10216-1 P195 320～440 ≥195 ≥27 P235 360～500 ≥235 ≥25 P265 410～570 ≥265 ≥23 EN10216-2 P195GH 320～440 ≥195 ≥27 P235GH 360～500 ≥235 ≥25 P265GH 410～570 ≥265 ≥23 13CrMo4-5 440～590 ≥290 ≥22 10CrMo9-10 480～630 ≥280 ≥22 Chemical composition:   […]

2017-04-17 read more...
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ASTM A53 / A53M – 12: Standard Specification for Pipe, Steel, Black and ……

ASTM A53 / A53M – 12 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless Scope：  Covers Seamless and Welded, Black and Hot-Dipped Galvanized nominal (average) wall pipe for coiling, bending, flanging and other special purposes and is suitable for welding. Continuous-Welded pipe is not intended for flanging. Purpose for which pipe is intended should be stated on order.  Materials and Manufacture：  The steel for both seamless and welded pipe shall be made by one or more of the following processes: open-hearth, electric furnace, or basic-oxygen. The weld seam of electric-resistance welded pipe in Grade B shall […]

2017-04-17 read more...
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DIN 17175: German Industrial Standard

DIN 17175 German Industrial Standard  Purpose:  Pipe for boiler industry.   The main production steel grades: St35.8、St45.8、15Mo3、13CrMo44、10CrMo910 etc. After consultation, can also supply other grades of steel pipe.   Mechanicalproperties：      Standard Grade Tensile strength (MPa) Yield strength (MPa) Elongation (%) DIN 17175 St35.8 360～480 ≥235 ≥25 St45.8 410～530 ≥255 ≥21 15Mo3 450～600 ≥270 ≥20 13CrMo44 440～590 ≥290 ≥20 10CrMo910 450～600 ≥280 ≥18 Chemical composition:      Standard Grade Chemical Composition C Si Mn P、S Cr Mo DIN 17175 St35.8 ≤0.17 0.10～0.35 0.40～0.80 ≤0.030 / / St45.8 ≤0.21 0.10～0.35 0.40～1.20 ≤0.030 / / 15Mo3 0.12～0.20 0.10～0.35 0.40～0.80 ≤0.030 / […]

2017-04-17 read more...
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