American standard smls steel pipe refers to seamless steel pipe produced according to the standards of the American Society for Testing and Materials (ASTM). Due to its excellent performance and reliability, American standard smls steel pipes are widely used around the world, especially in industrial fields such as oil and gas, chemical industry, electric power, machinery, etc. The following carefully summarizes the characteristics, applications and how to choose American standard smls steel pipes:
Characteristics of American standard smls steel pipe
Seamlessness: Compared with welded steel pipes, seamless steel pipes have no welds, so they have higher strength, better pressure bearing capacity and better sealing performance, and are especially suitable for the transportation of high pressure, high temperature and corrosive media.
Standardization: ASTM standards have strict regulations on the chemical composition, mechanical properties, dimensions, manufacturing processes, inspection methods, etc. of steel pipes, ensuring the stability and consistency of product quality.
Diversity: ASTM standards cover seamless steel pipes of various materials, specifications and uses to meet a variety of application requirements.
Commonly used ASTM standards and corresponding Chinese grades
|
ASTM Standards |
Main Application |
Commonly used grades |
Corresponding Chinese brand (approximate) |
|
ASTM A53/A53M |
General purpose carbon steel pipe, suitable for low pressure fluid transportation. |
A、B |
Q235、20# |
|
ASTM A106/A106M |
Carbon steel and alloy steel pipes used under low temperature conditions are suitable for low temperature pipelines, equipment, etc. |
A、B、C |
20#、20G |
|
ASTM A335/A335M |
Seamless ferritic alloy steel pipes used under high temperature conditions are suitable for high temperature and high pressure boilers, superheaters, etc. |
P1, P5, P9, P11, P22, P91, P92, etc. |
16Mo, 12CrMo, 15CrMo, etc. |
|
ASTM A213/A213M |
Seamless ferritic and austenitic alloy steel tubes for boilers, superheaters and heat exchangers. |
T2, T5, T9, T11, T12, T22, TP304, TP316, etc. |
12CrMo, 1Cr5Mo, 1Cr9Mo, etc., 0Cr18Ni9, 0Cr18Ni12Mo2, etc. |
|
ASTM A789/A789M and ASTM A790/A790M |
General purpose seamless and welded ferritic/austenitic stainless steel tubes for use in corrosive environments. |
304/304L, 316/316L, 321, etc. |
0Cr18Ni9/00Cr19Ni10, 0Cr17Ni12Mo2/00Cr17Ni14Mo2, 1Cr18Ni9Ti, etc. |
How to choose American standard smls steel pipe?
1. Clarify the operating conditions: Determine the working temperature, pressure, medium, load and other conditions of the steel pipe.
2. Find relevant ASTM standards: Select the appropriate ASTM standard based on the application conditions.
3. Choose the right grade: Select the grade that meets the performance requirements from the standard.
4. Determine size and specifications: Determine the outer diameter, wall thickness and length of the steel pipe according to design requirements.
5. Consider other factors: For example, manufacturing process, delivery status, non-destructive testing requirements, etc.
Things to note when purchasing American standard smls steel pipes
1. Confirm the implementation standard: Make sure that the steel pipes provided by the supplier meet the specified ASTM standards.
2. Request inspection report: Require suppliers to provide material certificates, mechanical properties test reports, chemical composition analysis reports, etc. for steel pipes.
3. Pay attention to packaging and transportation: Make sure the steel pipe is properly protected during transportation to avoid damage.
Application areas of American standard smls steel pipe
1. Oil and gas industry: Pipelines used to transport crude oil, natural gas, refined oil and other media, as well as the manufacture of equipment such as oil drilling and refining.
2. Chemical industry: Pipelines and equipment used to transport various chemical media, such as acids, alkalis, salts, etc.
3. Electric power industry: used for the manufacture of power station boilers, superheaters, heat exchangers and other equipment.
4. Mechanical manufacturing industry: used to manufacture various mechanical parts and structural components.
5. Construction industry: Steel structures used for large buildings.
Read more: The Price of American Standard SMLS Pipe in the International Market
