1. What is stainless steel seamless pipe?
Stainless steel seamless tube is a hollow long circular steel material that is widely used in industrial transportation pipelines and mechanical structural components such as petroleum, chemical industry, medical, food, light industry, mechanical instrumentation, etc. In addition, when the bending and torsional strength are the same, the weight is lighter, so it is also widely used in manufacturing mechanical parts and engineering structures. It is also commonly used to produce various conventional weapons, gun barrels, artillery shells, etc.Stainless steel seamless pipes are steel pipes that are resistant to corrosion by weakly corrosive media such as air, steam, and water and chemically corrosive media such as acids, alkalis, and salts.
2. What is 304 stainless steel seamless pipe?
(1) Introduction to 304 stainless steel
304 is a general-purpose stainless steel material with stronger anti-rust performance than 200 series stainless steel materials and can withstand high temperatures of 1000-1200 degrees. It has excellent stainless corrosion resistance and good intergranular corrosion resistance. It also has good corrosion resistance to alkali solutions and most organic and inorganic acids. 304 stainless steel is a brand of stainless steel produced in accordance with American ASTM standards.The main material components of 304 stainless steel pipe are 18%Cr and 8%Ni, which is an austenitic stainless steel. At the same time, there are also certain Ti elements and Mn elements. The influence of these elements makes it have excellent properties such as strength, corrosion resistance, and heat resistance.
304 stainless steel seamless pipe is a seamless pipe manufactured in accordance with ASTM standards using 304 stainless steel as raw material.
(2) Characteristics of 304 stainless steel seamless pipe
Compared with other types of pipes, this metal pipe has the following features and advantages:①Good corrosion resistance: Under normal atmospheric conditions, 304 stainless steel pipes have certain corrosion resistance and can be used for a long time in normal environments.
②Good processing performance: 304 stainless steel pipe has good processing performance and can meet the requirements of different customers.
③Good high temperature strength: Within the temperature range, 304 stainless steel pipe has good stress, corrosion resistance, oxidation resistance, corrosion resistance and thermal strength.
④ High cost performance: Compared with pipes made of other materials, 304 stainless steel pipes are more affordable and have good service life and performance.
(3) Production method of 304 stainless steel seamless pipe
Has the following production steps:a. Round steel preparation;
b. Heating;
c. Hot rolling and perforation;
d. Cut off the head; e. Pickling;
f. grinding;
g. Lubrication;
h. Cold rolling processing;
i. Skim;
j. Solution heat treatment;
k. Straightening;
l. cut pipe; m. Pickling;
n. Product testing.
(4) Application of 304 stainless steel seamless pipe
The application fields of 304 stainless steel pipe are very wide, mainly divided into the following fields:①Construction field: used for indoor and outdoor decoration, metal hanging parts, ceiling parts, wall decoration and handrails, etc.
② Machinery manufacturing: used for connecting various pipelines such as steam, air, edible media, water treatment, etc., and can also be used to manufacture automobile, train and aircraft parts.
③Chemical industry: used in oil and gas pipelines, chemical pipelines, acid production, alkali production, fertilizers, oil detection, natural gas refining, chemical catalysts, water pump parts, flue gas treatment and other fields.
④Medical equipment: used in the manufacture of medical equipment, such as surgical instruments, artificial kidneys, heart stents, etc.
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