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ASTM A270 Sanitary Stainless Tubing: Material, Specification, Key
Features
ASTM A270 Sanitary Stainless Tubing is a widely-used material in various industries, known for its high quality and hygienic properties. This article explores its material, key features, chemical composition, mechanical properties, steel grade, application, and possible alternative grades.
Material
ASTM A270 Sanitary Stainless Tubing is manufactured using stainless steel, predominantly Grades 304 and 316. These grades offer excellent corrosion resistance, durability, and ease of cleaning, making them ideal for sanitary applications.
Specification
The ASTM A270 standard specifies the requirements for seamless and welded sanitary stainless steel tubing for food, beverage, dairy, pharmaceutical, and other industries where sanitation is paramount. It covers dimensions, tolerances, surface finishes, and testing methods to ensure product quality.
Key Features
High corrosion resistance
Superior hygiene standards
Ease of cleaning
Seamless and welded options available
Uniform wall thickness
Various surface finishes to meet specific requirements
Chemical Composition
| Element | Grade 304 Composition (%) | Grade 316 Composition (%) |
| Carbon | 0.08 max | 0.08 max |
| Manganese | 2.00 max | 2.00 max |
| Phosphorus | 0.045 max | 0.045 max |
| Sulfur | 0.030 max | 0.03 max |
| Silicon | 0.75 max | 0.75 max |
| Chromium | 18.0-20.0 | 16.0-18.0 |
| Nickel | 8.0-10.5 | 10.0-14.0 |
| Molybdenum | - | 2.0-3.0 |
Mechanical Properties
| Property | Grade 304 | Grade 316 |
| Tensile Strength | 515 (MPa) min | 485 (MPa) min |
| Yield Strength | 205 (MPa) min | 170 (MPa) min |
| Elongation | 35% min | 35% min |
| Hardness (Brinell) | 201 max | 217 max |
Steel Grade
The primary steel grades used for ASTM A270 are 304 and 316 stainless steels, with Grade 316 offering improved corrosion resistance, especially in chloride environments.
Application
ASTM A270 Sanitary Stainless Tubing is commonly utilized in industries such as food and beverage processing, dairy production, pharmaceutical manufacturing, and biotechnology due to its sanitary properties and durability.
Possible Alternative Grades
While Grades 304 and 316 are the most commonly used for sanitary applications, alternative grades like 316L or duplex stainless steels (e.g., 2205) can also be considered based on specific application requirements.
Our vision is to be a trusted company by providing quality Tp316L Sanitary Stainless Steel Tubing and attentive service since the establishment of our company. It is our eternal pursuit to be an enterprise that satisfies our customers, has sustainable business ability and is most respected by the society. Our technical team consists of highly qualified, high-level, highly skilled scientific and technological research and development personnel and technical workers.
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