ASTM A213 TP304 Stainless Steel Tube
ASTM A213 is a standard for seamless stainless steel tubes used in high-temperature and corrosive settings. The TP304 marking denotes the stainless steel grade used in the tubes, which is 304 stainless steel.
The ASTM A213 specification includes stainless steel grades such as TP304, TP304L, TP316, TP316L, TP321, TP347, and TP347H. Chemical processing, petrochemicals, medicines, food and beverage processing, and power generation are all applications for tubes.
The stainless steel grade TP304 is austenitic stainless steel that is highly resistant to corrosion, heat, and oxidation. Because of its high level of cleanliness and corrosion resistance, it is extensively used in the fabrication of pipes and tubes for many industries, including the food and beverage industry. TP304 stainless steel is also employed in architectural applications and the production of kitchen appliances and equipment.
Chemical Composition (%) of ASTM A213 TP304 Stainless Steel Tube
ASTM A213 TP304 stainless steel tube contains components such as carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, and sometimes molybdenum.
| CHEMICAL COMPOSITION (%) | |||||||||
| Grade | C, max | Mn, max | P, max | S, max | Si, max | Cr | Ni | Mo | N, max |
| ASTM A213 TP304 | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 18.00-20.00 | 8.00-10.50 | - | 0.10 |
Mechanical Properties of ASTM A213 TP304 Stainless Steel Tube
ASTM A213 TP304 stainless steel tube's mechanical properties are affected by elements such as the production process, heat treatment, and testing procedures.
| MECHANICAL PROPERTIES | ||||
| Tensile Strength, MPa, min | Yield Strength, MPa, min | Elongation (%), min | Hardness, max | |
| 515 | 205 | 35 | 90 HRB | 200 HV |
Applications of ASTM A213 TP304 Stainless Steel Tube
ASTM A213 TP304 stainless steel tube is utilized in a variety of applications where high temperature and corrosion resistance are required. They are frequently employed in the chemical, petrochemical, pharmaceutical, food, and beverage manufacturing, and power generation industries. Because of its attractive characteristics, the TP304 tube is frequently employed in architectural and ornamental applications.
Equivalent Grades of ASTM A213 TP304 Stainless Steel Tube
| Standard | UNS | WERKSTOFF NR. | JIS | BS | EN | GOST | AFNOR |
| ASTM A213 TP304 | S30400 | 1.4301 | SUS 304 | 304S31 | X5CrNi18-10 | 08Х18Н10 | Z7CN18‐09 |
Manufacturing of ASTM A213 TP304 Stainless Steel Tube
ASTM A213 TP304 stainless steel tubes are typically produced using either seamless or welded techniques. The seamless procedure includes piercing a solid stainless steel billet and rolling it into a tube, whereas the welding process requires utilizing heat and pressure to combine two pieces of stainless steel. To get the desired dimensions and mechanical qualities, these tubes can be cold drawn or cold rolled.
Testing of ASTM A213 TP304 Stainless Steel Tube
ASTM A213 TP304 tubes must pass a battery of tests to confirm that they satisfy the standards. Hydrostatic testing, flaring, flattening, hardness testing, and non-destructive testing such as eddy current or ultrasonic testing are examples of these tests. The tubes are also visually inspected to ensure that they are free of flaws like cracks, pits, or scratches.
