ASME SA249 TP304 Stainless Steel Welded Tube, Bright Annealed, Plain End

Product Description:

ASME SA249 TP304 Stainless Steel Welded Tube, Bright Annealed, Plain End

The Inner and Outer Brightening Effect of Stainless Steel Welded Pipes
During the production and processing of stainless steel welded pipes, mechanical processing, chemical treatment, electrolytic polishing and other technical means can greatly improve their surface smoothness and glossiness, thereby forming a bright effect both inside and outside. This type of bright inner and outer pipe material can improve the surface smoothness and overall aesthetics of the pipeline, further enhancing its service life, as well as enhancing its corrosion resistance and oxidation resistance. Therefore, the internal and external brightness of stainless steel welded pipes has broad application value in practical production and engineering applications.

The processing method for the inner and outer brightness of stainless steel welded pipes
The internal and external brightness of stainless steel pipes is mainly achieved through the following technical means:
1. Mechanical polishing: Using mechanical equipment to process the surface of stainless steel pipes, removing burrs and stains on the surface, making it smoother and smoother.
2. Chemical treatment: By using techniques such as chemical acid washing, the surface oxide layer is removed through chemical reactions, making the pipeline surface cleaner and purer.
3. Electrolytic polishing: Polishing treatment through electrolytic reaction can significantly improve the surface smoothness of stainless steel pipes, forming a mirror effect.
The above three methods can be combined to achieve continuous processing, resulting in a bright effect both inside and outside.

The Use Value of Bright Inner and Outer Surface of Stainless Steel Welded Pipes
The use value of bright inside and outside of stainless steel welded pipes is mainly reflected in the following aspects:
1. Improving the overall aesthetics and decorative effect of pipelines, making the pipeline system more aesthetically pleasing and generous, is beneficial for the decorative effect inside and outside the building.
2. Improve the surface smoothness and flatness of pipelines, prevent problems such as leaks and dead corners inside the pipelines, and improve the fluid transmission efficiency and smoothness of pipelines.
3. Improve the corrosion resistance and oxidation resistance of pipelines, prolong their service life in harsh environments, and make them more durable and reliable.

Chemical Composition:

Elements	304L(wt%)	316L (wt%)
(C) Carbon, max	0.035	0.035
(Mn) Manganese, max	2.00	2.00
(P) Phosphorus, max	0.040	0.040
(S) Sulfur, max	0.030	0.030
(Si) Silicon, max	0.75	0.75
(Ni) Nickel	8.0-13.0	10.0-15.0
(Cr) Chromium	18.0-20.0	16.0-18.0
(Mo) Molybdenum	N/A	2.0-3.0
(Fe) Iron	Bal.	Bal.
(Cu) Copper	N/A	N/A
(N) Nitrogen	N/A	N/A

Dimensional Tolerences (mm)

Size OD	Nominal Wall	Outside Diameter	Length	Wall
1/2" (12.7)	0.065" (1.65)/0.049" (1.25)	+/-0.005 (0.13)	+1/8" (3.18) - 0	+/-10.0%
3/4" (19.1)	0.065" (1.65)/0.049" (1.25)	+/-0.005 (0.13)	+1/8" (3.18) - 0	+/-10.0%
1" (25.4)	0.065" (1.65)/0.049" (1.25)	+/-0.005 (0.13)	+1/8" (3.18) - 0	+/-10.0%
1-1/2" (38.1)	0.065" (1.65)/0.049" (1.25)	+/-0.008" (0.20)	+1/8" (3.18) - 0	+/-10.0%
2" (50.8)	0.065" (1.65)/0.049" (1.25)	+/-0.008" (0.20)	+1/8" (3.18) - 0	+/-10.0%
2-1/2" (63.5)	0.065" (1.65)	+/-0.010" (0.25)	+1/8" (3.18) - 0	+/-10.0%
3" (76.2)	0.065" (1.65)	+/-0.010" (0.25)	+1/8" (3.18) - 0	+/-10.0%
4" (101.6)	0.083" (2.11)	+/-0.015" (0.38)	+1/8" (3.18) - 0	+/-10.0%
6" (152.4)	0.083" (2.11)	+/-0.030" (0.76)	+1" (25.4) - 0	+/-10.0%
6" (152.4)	0.109" (2.77)	+/-0.030" (0.76)	+1" (25.4) - 0	+/-10.0%
8" (203.2)	0.109" (2.77)	+0.061" (1.55)/-0.031" (0.79)	+1" (25.4) - 0	+/-10.0%

Application Area:

1. Oil and gas industry
Yuhong bright welded pipes are widely used in oil and gas extraction, transportation and storage processes. They can be used in oil well pipelines, oil and gas transmission pipelines, liquefied natural gas storage and transmission pipelines. These welded pipes have high pressure resistance and corrosion resistance, and can withstand high pressure, high temperature and harsh working environment for a long time.

2. Chemical industry
Yuhong bright welded pipe also has a wide range of applications in the chemical industry. Chemical plants often need to transport and store a variety of chemicals, which requires pipelines with high corrosion resistance. Bright welded pipe not only has corrosion resistance, but also can resist corrosion under high temperature and high pressure conditions. In addition, they also have good dimensional stability and processing properties, which play an important role in chemical production.

3. Food industry
Yuhong bright welded pipe is also widely used in the food industry. Non-toxic, tasteless and pollution-free materials are required in food processing and storage. Bright welded pipe has good surface finish and dimensional stability to ensure food safety and hygiene. In addition, bright welded pipe also has corrosion resistance, can resist acid and alkali in food and other corrosive substances. For this reason, they are often used in food processing equipment, delivery pipes and storage equipment.

4. Pharmaceutical industry
Yuhong bright welded pipe also has a wide range of uses in the pharmaceutical industry. The pharmaceutical process requires strict control of air pollution and cross-contamination, so the requirements for materials are very high. Bright welded pipe has good surface finish and dimensional accuracy suitable for the manufacture of pharmaceutical equipment. In addition, the bright welded pipe also has good corrosion resistance and pressure resistance, which can meet the requirements of the pharmaceutical industry for pipeline equipment.

5. Power industry
Yuhong bright welded pipe has also been widely used in the power industry. Power stations and substations usually require the use of a large number of transmission and distribution pipes. Bright welded pipe has high pressure resistance and corrosion resistance, and can transport electricity safely and efficiently. In addition, bright welded pipe also has good electrical conductivity, can reduce the loss of electric energy.

6. Construction industry
Yuhong bright welded pipe also plays an important role in the construction industry. A large number of pipes need to be used in construction, such as supporting pipes for building structures and pipes in air conditioning systems. Bright welded pipe has good mechanical properties and appearance finish, which can meet the requirements of architectural design and decoration. In addition, bright welded pipe also has good weather resistance and corrosion resistance, and can be used stably in outdoor environment for a long time.

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