What are the dimensions and specifications of stainless steel precision tubes?

Answer; What are the dimensions and specifications of stainless steel precision tubes? Specifications 21 4 38 10 65 6-12 21 40 8 68 6-12 22 40 10 70 8 25 8 42 5-10 70 10 80*10 90*10 102*10 114*10

Stainless steel precision tubesFor small and medium-sized enterprises, because the products manufactured are relatively simple and the technology is relatively mature, or the foreign pattern design is directly adopted. Therefore, it is necessary to strengthen the control of the process in the production process, identify the main processes of product production, understand the safety testing points and safety quality control points stipulated by the compulsory certification, and clearly identify them. At the same time, it is necessary to clarify the specific operational requirements of these key points, and prepare work instructions according to the relevant standards of the industry or the company, and the work instructions should strive to be detailed, clear and operable.

Commonly used (304) stainless steel pipe size specification table (1).

Specification. Specification. Specification.

Commonly used stainless steel pipe size specification table (2).

Specification. Specification. Specification.

Commonly used stainless steel pipe size specification table (3).

Specification. Specification. Specification.

Commonly used stainless steel pipe size specification table (4).

Nominal diameter. Outer diameter wall thickness).

mm) weight per meter.

kg) nominal diameter.

Outer diameter wall thickness).

mm) weight per meter.

kg) nominal diameter.

Outer diameter wall thickness).

mm) weight per meter. kg).

Commonly used stainless steel pipe size specification table (5).

Nominal diameter. Outer diameter wall thickness).

mm) weight per meter.

kg) nominal diameter.

Outer diameter wall thickness).

mm) weight per meter.

kg) nominal diameter.

Outer diameter wall thickness).

mm) weight per meter. kg).

Commonly used stainless steel pipe size specification table (6).

Nominal diameter. Outer diameter wall thickness).

mm) weight per meter.

kg) nominal diameter.

Outer diameter wall thickness).

mm) weight per meter.

kg) nominal diameter.

Outer diameter wall thickness).

mm) weight per meter. kg).

Stainless steel precision pipe fittings are complete in specifications, generally imperial and national standard sizes, standard imperial sizes are: 1 8", 1 4", 3 8", 1 2", wall thickness is: ,, the national standard size is mostly 6 * 1, 8 * 1, 10 * 1, etc., most of the domestic stainless steel precision coils are welded by stainless steel strips, fortunately, the wall thickness is reduced, and the wall thickness is the wall thickness in the process of wall thickness from thick to thin.

Stainless steel pipe implementation standard: GB T14976-2012 stainless steel seamless steel pipe for fluid transportation (replace GB T14976-2002 instead of GB T14976-1994 instead of GB2270-1980).

GB T14975-2012 Stainless steel seamless steel pipe for structural use (Replacement for GB T14975-2002) GB13296-2013 Stainless steel tube for boiler tubes and heat exchangers. The specific part of the specification table is as follows:

Nowadays, the commonly used stainless steel square tube is 50x x x x30, unit (mm).

Conversion table of seamless steel pipe dn diameter and mm:

DN stands for "nominal diameter" and is measured in mm.

Units in inch are not allowed behind the DN!

The value after DN is rounded, and DN80 does not mean that its bore is 80mm (usually DN80 has an inner diameter of 76mm). Therefore, there is no formula for converting "nominal diameter" and "actual diameter", and the table must be checked.

" and "dn" are generally used to indicate diameter, the difference is:

"Identify the diameter of the ordinary circle, or the outer diameter of the pipe multiplied by the wall thickness, such as: 25 3 Identify the pipe with an outer diameter of 25mm and a wall thickness of 3mm; "DN": Identifies the nominal diameter of fittings such as pipes and valves, which are usually close to the inner diameter.

It is a standard term established for engineering installation kits.

It means the outer diameter, and dn refers to the inner diameter dn: nominal diameter: the outer diameter of the tube is generally measured in inches, and millimeters is just a relatively approximate and easy-to-remember number.

For example, the tube of DN50 should be 2 inches, 1 inch =, 2 inches should be 50mm, at this time, it also depends on the wall thickness of the tube, generally the spiral tube is above 5mm, taking 5mm as an example, the outer diameter of the tube of DN50 should be about 60mm.

There are three common ones.

Round pipe specification: 12- 830mm 1 - 60mm (outer diameter wall thickness) square pipe specification: 20-250mm 2-20mm (side length wall thickness) elbow specification:

12- 426mm 2-20mm (outer diameter wall thickness) stainless steel pipe is mainly made of L, according to the process is divided into stainless steel welded pipe and stainless steel seamless pipe, stainless steel welded pipe in 80 round pipe conventional spot thickness between. Stainless steel seamless pipe 80 round pipe regular spot thickness between.

Due to the advantages of high dimensional accuracy, excellent mechanical properties and bright and smooth surface, precision stainless steel pipes are favored by the majority of stainless steel products enterprises, and the demand is increasing day by day.

Commonly used materials l l.

Gangzheng precision stainless steel round tube specifications:

Gangzheng stainless steel.

Gangzheng precision stainless steel square tube specifications <>

Gangzheng stainless steel.

200201202301304304l316316l310s.Stainless steel pipe is a kind of hollow long round steel, which is mainly widely used in petroleum, chemical, medical, food, light industry, machinery and instruments and other industrial transportation pipelines and mechanical structural components. In addition, it is lighter in weight when the bending and torsional strength are the same, so it is also widely used in the manufacture of machine parts and engineering structures.

It is also commonly used to produce all kinds of conventional **, gun barrels, shells, etc.

This question seems to be asked by a lot of people, I suggest you observe two points, first, choose a brand with large sales, a large sales volume indicates that this brand of household water pipes is more popular, and the other is to look at customer reviews, reviews should not only see how much, but also see whether the praise rate is high. Rifeng pipe sales and praise rate are very high Rifeng pipe, Rifeng pipe is located in Foshan, "Rifeng pipe, 50 years", is a classic advertising slogan of Rifeng Group, now Rifeng pipe has also entered the bathroom industry.

When a good PPR water pipe is melted, there is no peculiar smell, no black smoke, no choking, uniform melting speed, no strong sense of blocking, and it will not melt too fast. If it is a white tube, it must not have a sense of light transmission. Gently stroking the new tube body with the back of your hand, there is a touch like caressing a child's skin, but it is not greasy, this feeling is really difficult to express, it seems that it can only be understood.

Zhongcai Pipeline, located in Zhejiang, Zhongcai's development strategy is also to open branches all over the country, Brother Toilet is more familiar with the Hunan branch and Guangxi branch, the Guangxi branch is called Guangxi Nancai Pipeline, in our eastern Guangdong region sales are very large, and I am still a partner.

The big brother of Liansu pipeline industry is somewhat similar to the situation of Jinde, but it is better than Jinde in that Liansu has a big business, not only in the pipeline industry, so although the development of pipelines is not good, product research and development is not good, but it is still relatively competitive in the low-end market, and this is recommended if you want to buy cheap pipes.

Due to the large number of pipe fittings, there are higher requirements for the factory's capital and technology, and the factory scale and revenue of water pipes are relatively large, such as Liansu's revenue of 20 billion a year, and the smaller ones are billions, and the water pipe brands are relatively concentrated, and there are not many brands sold on the market. There are too many brands of water pipes, and it is particularly important to choose a good PPR water pipe for household drinking water. I have been working on water pipes for many years, and I have also processed personal brand water pipes.

The best choice is, of course, the micro-method PPR water pipe imported from Germany, the imported Farrant water pipe, and the domestic Weixing Rifeng is relatively good.

The specifications are generally 6:1 or 8:1, these specifications are relatively formal, and different materials have different functions.

Seamless stainless steel pipes are generally used in petrochemical, pharmaceutical and pressure vessels, with diameters of 32 27 6 meters, wall thickness, 25 20 (inner diameter) 6 meters, 45 39x6 meters, 57 51 6 meters, 89 81 3 meters, 19 14 6 meters....

Generally, seamless steel pipes are made of high-quality carbon-bonded steel, 16MnV, 5Mnv and other low-alloy structural steels, or 40Cr, 30Cr, Mnsi, 45Mnb and other bonded steels hot-rolled or cold-rolled.

There are some commonly used decorative pipe specifications here, which are mainly used in stainless steel stair handrails, anti-theft windows, guardrails and other stainless steel products.