ASTM A240 TP304 Tube Sheet and Support Plate for Pressure and Temperature Management
ASTM A240 TP304 is a specification for a type of stainless steel that is commonly used in the manufacturing of heat exchangers and other high-temperature applications. Here's a breakdown of what this specification means:
When using TP304 as a tube sheet in a heat exchanger, it is important to ensure compliance with the relevant ASTM standards, which specify the required chemical composition, mechanical properties, and testing methods. The tube sheets must be able to handle the pressures and temperatures involved in the operation of the heat exchanger, while also providing sufficient corrosion resistance.
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | BS | GOST |
|---|---|---|---|---|---|---|---|
| SS 304 | S30400 | 1.4301 | Z7CN18‐09 | X5CrNi18-10 | SUS 304 | 304S31 | 08Х18Н10 |
| Grade | C | Ni | Si | N | S | Mn | P | Cr | Mo | |
| SS 304 | min. | - | 8.0 | - | - | - | - | - | 18.0 | - |
| max. | 0.08 | 10.5 | 0.75 | 0.10 | 0.030 | 2.0 | ||||
| Grade | Tensile Strength (MPa) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (MPa) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| SS 304L | 485 | 40 | 170 | 92 | 201 |
- Stainless Steel
- Carbon Steel
- Nickel Alloy
- Duplex
Some of the common applications of tube sheets include:
- Heat exchangers
- Boilers
- Condensers
- Evaporators
- Oil coolers
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