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A312 TP 304L Steel Pipe

A312 WP304L steel pipe is a hollow long round steel, mainly made of stainless steel. Stainless steel is steel that does not rust in weak corrosive media such as air and fresh water.

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A312 WP304L steel pipe is a hollow long round steel, mainly made of stainless steel. Stainless steel is steel that does not rust in weak corrosive media such as air and fresh water. It generally contains chromium (Cr), and the chromium content is usually not less than 10.5%. Chromium forms an extremely thin, strong, fine, stable chromium-rich oxide film (passivation film) on the surface of stainless steel to prevent the continued infiltration and oxidation of oxygen atoms, thereby obtaining corrosion resistance.

Stainless steel pipes are widely used in industrial pipelines such as petroleum, chemical, medical, food, light industry, mechanical instruments, and mechanical structural components

Specification Of A312 WP304L Steel Pipe

Processing Method Seamless and Welded
Size Range 1/8” – 30” / DN6 – 750
Thickness Schedule SCH 10S- SCH 160, XXS
Length 6m or 12 m or Random
Standard ASME B36.19
Surface Treatment Polish , Mirror , Epoxy Powder FBE, 2PE, 3PE Coating
Material Grade ASTM A312 TP304/304L/304H, 316/316L, 310S, 317, 347, 904L, S32205, S31803, 32750, 32760, S32550

Stainless Steel Pipe Schedule Chart

DN NPS OD SCH10 SCH20 SCH30 STD SCH40 SCH60 XS SCH80
6 1/8 10.3 1.24 1.45 1.73 1.73 2.41 2.41
8 1/4 13.7 1.65 1.85 2.24 2.24 3.02 3.02
10 3/8 17.1 1.65 1.85 2.31 2.31 3.20 3.20
15 1/2 21.3 2.11 2.41 2.77 2.77 3.73 3.73
20 3/4 26.7 2.11 2.41 2.87 2.87 3.91 3.91
25 1 33.4 2.77 2.90 3.38 3.38 4.55 4.55
32 11/4 42.2 2.77 2.97 3.56 3.56 4.85 4.85
40 11/2 48.3 2.77 3.18 3.68 3.68 5.08 5.08
50 2 60.3 2.77 3.18 3.91 3.91 5.54 5.54
65 21/3 73.0 3.05 4.78 5.16 5.16 7.01 7.01
80 3 88.9 3.05 4.78 5.49 5.49 7.62 7.62
90 31/2 101.6 3.05 4.78 5.74 5.74 8.08 8.08
100 4 114.3 3.05 4.78 6.02 6.02 8.56 8.56

Characteristics of A312 WP304L Pipes

Corrosion Resistance
Performs well in various corrosive environments. For example, in the food processing industry, A312 WP304L pipes are used to transport acidic or alkaline food raw materials and will not be corroded, thus ensuring the safety and quality of food. In the marine environment, 316 stainless steel pipes can resist the erosion of seawater and can be used for the pipeline part of seawater desalination equipment. They will not rust or damage after long-term use.
Mechanical Properties
Have good strength and toughness. Different types of stainless steel pipes have different strengths, but can generally withstand certain pressures. In building structures, A312 WP304L pipes can be used to support structures and bear the weight and external forces of buildings. Its toughness makes it less likely to break when it is subjected to certain impacts or vibrations. For example, the use of stainless steel pipe structures in buildings in earthquake-prone areas can improve the seismic resistance of buildings to a certain extent.
Aesthetics
The surface of stainless steel pipes is smooth and shiny, and has a good appearance. In interior decoration, such as stair handrails and railings, stainless steel pipes are used, which not only play a role in safety protection, but also enhance the aesthetics of the entire space. In the facade decoration of high-end commercial buildings, stainless steel pipes are also widely used, giving people a modern, simple and high-end feeling.
Hygiene
Due to its rust-resistant and corrosion-resistant properties, stainless steel pipes are also widely used in the medical and health field. For example, in hospital oxygen delivery pipelines, infusion stands and other equipment, stainless steel pipes can ensure the purity of the delivery medium and will not affect the health of patients due to corrosion or contamination of the pipes themselves.

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