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ASTM A213 TP304L Stainless Steel Tubes For Superheater And High-Temperature And High-Pressure Pipe Fittings
1. Description
The difference between 304, 304H and 304L
In fact, according to the content of chromium and nickel, all of them are 304 stainless steel, with 18% chromium (CR) and 8% nickel (Ni), but the main difference lies in the carbon content.
Among them, the highest carbon content is 304H, the lowest is 304L, and the carbon content of 304 stainless steel is between the two. The higher the carbon content, the worse the corrosion resistance of stainless steel. Different carbon content also leads to different prices. However, in actual use, different requirements for different uses are different.
ASTM A213 TP304L is normally for Stainless steel boiler, superheater and heat exchanger. Because it is a variety of alloy components, it is very difficult to process hardness and cutting. It is mainly used to manufacture high-temperature superheater, high-temperature reheater, high-temperature section of platen superheater and high-temperature and high-pressure pipe fittings of large power generation boiler with large pressure parameters and close to critical or supercritical.
ASTM A213 TP304L stainless steel seamless steel pipe can be sprayed marks on the surface, threaded at both ends, chamfered at both ends, and wear caps at both ends. Plywood boxes packaging can make sure the safety during the transportation. Our stainless steel seamless steel pipe are in good quality and fully meet the different needs. The products are now sold well in Asia, and have won the praise and satisfaction of customers. They are widely used in many fields, especially in heaters, and boilers.
2. Chemical composition
| Element List | ||||||||||
| America standard | European standard | C % max | Mn % max | P % max | S % max | Si % max | Cr % | Ni % | Mo% | Others |
| TP304 | 1.4301 | 0.080 | 2.0 | 0.045 | 0.03 | 1.00 | 18.00-20.00 | 8.00-11.00 | - | - |
| TP304L | 1.4307 | 0.035 | 2.0 | 0.045 | 0.03 | 1.00 | 18.00-20.00 | 8.00-12.00 | - | - |
| TP304H | / | 0.04-0.10 | 2.0 | 0.045 | 0.03 | 1.00 | 18.00-20.00 | 8.00-11.00 | - | - |
| TP310S | 1.4845 | 0.080 | 2.0 | 0.045 | 0.03 | 1.00 | 24.00-26.00 | 19.00-22.00 | - | - |
| TP316 | 1.4401 | 0.080 | 2.0 | 0.045 | 0.03 | 1.00 | 16.00-18.00 | 11.00-14.00 | 2.00-3.00 | - |
| TP316L | 1.4404 | 0.035 | 2.0 | 0.045 | 0.03 | 1.00 | 16.00-18.00 | 10.00-14.00 | 2.00-3.00 | - |
| TP316Ti | 1.4571 | 0.080 | 2.0 | 0.045 | 0.03 | 0.75 | 16.00-18.00 | 10.00-14.00 | 2.00-3.00 | Ti:5X(C+N)-0.70 |
| TP317 | / | 0.080 | 2.0 | 0.045 | 0.03 | 1.00 | 18.00-20.00 | 11.00-15.00 | 3.00-4.00 | - |
| TP317L | 1.4438 | 0.035 | 2.0 | 0.045 | 0.03 | 1.00 | 18.00-20.00 | 11.00-15.00 | 3.00-4.00 | - |
| TP321 | 1.4541 | 0.080 | 2.0 | 0.045 | 0.03 | 1.00 | 17.00-19.00 | 9.00-12.00 | - | Ti:5X(C+N)-0.70 |
| TP321H | / | 0.04-0.10 | 2.0 | 0.045 | 0.03 | 1.00 | 17.00-19.00 | 9.00-12.00 | - | Ti:4X(C+N)-0.70 |
| TP347 | 1.4550 | 0.080 | 2.0 | 0.045 | 0.03 | 1.00 | 17.00-19.00 | 9.00-13.00 | - | Nb:10XC-1.1 |
| TP347H | / | 0.04-0.10 | 2.0 | 0.045 | 0.03 | 1.00 | 17.00-19.00 | 9.00-13.00 | - | Nb:8XC-1.1 |
| 904L | 1.4539 | 0.020 | 2.0 | 0.045 | 0.03 | 1.00 | 19.00-23.00 | 23.00-28.00 | 4.00-5.00 | N:0.10 max/Cu:1.0-2.0 |
| S31803 | 1.4462 | 0.030 | 2.0 | 0.045 | 0.03 | 1.00 | 21.00-23.00 | 4.50-6.50 | 2.50-3.50 | N:0.08-0.20 |
| S32205 | / | 0.030 | 2.0 | 0.045 | 0.03 | 1.00 | 22.00-23.00 | 4.50-6.50 | 3.00-3.50 | N:0.14-0.20 |
| S32750 | 1.4410 | 0.030 | 2.0 | 0.045 | 0.03 | 1.00 | 24.00-26.00 | 6.00-8.00 | 3.00-5.00 | N:0.24-0.32 |
3. Physical Properties
| Grade of steel | |||||
| China(GB) | China(GB) | America AISI(ASTM) | JIS | (Germany) | |
| Old Grade | New Grade | (Japan) | DIN17006 | DIN17007 | |
| Stainless steel seamless pipe | 0Cr18Ni9 | TP304/ 06Cr19Ni10 | 304/S30400 | SUS304 | X5CrNi18-10 |
| 00Cr19Ni10 | TP304L/ 022Cr19Ni10 | 304L/S30403 | SUS304L | X2CrNi19-11 | |
| 0Cr25Ni20 | TP310/ 06Cr25Ni20 | 310S/31008 | SUS310S | X12CrNi25-21 | |
| 0Cr17Ni12Mo2 | TP316/ 06Cr17Ni12Mo2 | 316/S31600 | SUS316 | X5CrNiMo17-12-2 | |
| 00Cr17Ni14Mo2 | TP316L/ 022Cr17Ni12Mo2 | 316L/S31603 | SUS316L | X2CrNiMo18-14-3 | |
| 0Cr19Ni13Mo3 | TP317/ 06Cr19Ni13Mo3 | 317/S31700 | SUS317 | X5CrNiMo11-13-3 | |
| 00Cr19Ni13Mo3 | TP317L/ 022Cr19Ni13Mo3 | 317L/S31703 | SUS317L | X2CrNiMo18-16-4 | |
| 0Cr18Ni10Ti | TP321/ 06Cr18Ni11Ti | 321/S32100 | SUS321 | X6CrNiTi18-10 | |
| 0Cr18Ni11Nb | TP347/ 06Cr18Ni11Nb | 347/S34700 | SUS347 | X12CrNiNb18-10 | |
4. Details picture
