ASTM A270 TP304 Sanitary Stainless Steel Tube With External Thread End
ASTM A270 TP304 Sanitary Stainless Steel Tube With External Thread End
ASTM A270 TP304 stainless steel Tube is the standard of the sanitation industry. With its excellent cleanliness, corrosion resistance and formability, it is widely used in high-demand fields such as food.
It is suitable for industries with extremely high requirements for cleanliness and corrosion resistance. When selecting, the surface treatment level (such as electrolytic polishing) and connection method should be given priority, and it should be avoided in strong corrosion or high temperature extreme environments.
Advantage
Fast and reliable connection
No welding required: Directly screw into the matching port through the thread, simplifying the installation process, especially suitable for places with limited space or prohibited hot work.
Time and labor saving: Compared with flange connection, threaded connection is lighter and the installation tools are simple.
Disassembly and convenient maintenance
Modular design: Allows the removal and replacement of pipe sections or components at any time, which is convenient for maintenance, cleaning or system modification.
Reduce downtime: No need to cut the pipe during maintenance, greatly shortening the maintenance cycle.
Sealing function
Combined with sealing materials: Threads can be used with raw tape, sealant or gaskets to form high-pressure seals
Sealing types:
Tapered threads (such as NPT): The threads themselves bite to produce a seal (auxiliary sealants are required).
Straight threads (such as BSPP): Rely on end face gaskets for sealing, and the threads only provide tightening force.
System flexibility
Adapt to a variety of interfaces: Easily connect pipes of different specifications or materials through thread conversion joints.
Extended function: The end can be connected to accessories such as pressure gauge, sensor, exhaust valve, etc. to achieve monitoring or control.
Chemistry Composition
|
C, % |
Mn, % |
P, % |
S, % |
Si, % |
Cr, % |
Ni, % |
|
0.08 max |
2.00 max |
0.045 max |
0.030 max |
1.00 max |
18.0-20.0 |
8.00-11.0 |
Mechanical Properties
| Tensile Strength , MPa | Yield Strength, MPa | Elongation, % | Hardness, HB |
| 515 min | 205 min | 35 min | 192 max |
Outside Diameter & Tolerance
| Hot rolled | Outside Diameter, mm | Tolerance, mm |
| OD≤101.6 | +0.4/-0.8 | |
| 101.6＜OD≤190.5 | +0.4/-1.2 | |
| 190.5＜OD≤228.6 | +0.4/-1.6 | |
| Cold Drawn | Outside Diameter, mm | Tolerance, mm |
| OD＜25.4 | ±0.10 | |
| 25.4≤OD≤38.1 | ±0.15 | |
| 38.1＜OD＜50.8 | ±0.20 | |
| 50.8≤OD＜63.5 | ±0.25 | |
| 63.5≤OD＜76.2 | ±0.30 | |
| 76.2≤OD≤101.6 | ±0.38 | |
| 101.6＜OD≤190.5 | +0.38/-0.64 | |
| 190.5＜OD≤228.6 | +0.38/-1.14 |
Application
- Food and beverage processing Prevent bacterial growth Resistant to lactic acid and detergent corrosion
- Cosmetics and daily chemical products High-precision delivery tube to ensure no particle contamination Resistant to alcohol and organic solvents.
- Medical and laboratory equipment Medical gas delivery
- Semiconductor and electronics industry
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