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Durable Heat Exchanger Steel Pipe , ASTM A312 316l Stainless Steel Tubing Seamless
316 / 316L stainless steel pipe is used for applications that require the high strength, toughness and workability, coupled with increased corrosion resistance. The alloy contains higher percentages of molybdenum and nickel than 304 stainless, increasing the corrosion resistance and making it an ideal material for applications in aggressive environments. 316L contains higher levels of carbon than 316 stainless, reducing its weldability.
2. Steel pipes No. of main production:
TP201, TP304, TP304L, TP316L
3. Chemical Requirements
| Chemical Composition % | ||||||||||
| Grade | UNS Designation | C | Mn | P | S | Si | Cr | Ni | Mo | Other |
| TP304 | S30400 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-11.0 | … | |
| TP304L | S30403 | 0.035 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-13.0 | … | |
| TP304H | S30409 | 0.04-0.10 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-11.0 | … | |
| TP316 | S31600 | 0.08 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 11.0-14.0 | 2.00-3.00 | |
| TP316L | S31603 | 0.035 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | |
| TP316H | S31609 | 0.04-0.10 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 11.0-14.0 | 2.00-3.00 | |
| TP321 | S32100 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17.0-19.0 | 9.0-12.0 | … | N: 0.1 |
| TP321H | S32109 | 0.04-0.10 | 2 | 0.045 | 0.03 | 1 | 17.0-19.0 | 9.0-12.0 | … | N: 0.1 |
| Ti: 4(C+N) min; | ||||||||||
| 0.70 max | ||||||||||
| TP347 | S34700 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17.0-19.0 | 9.0-13.0 | … | |
| TP347H | S34709 | 0.04-0.10 | 2 | 0.045 | 0.03 | 1 | 17.0-19.0 | 9.0-13.0 | … | |
4. Mechanical Properties
| Mechanical Properties | |||
| Grade | UNS Designation | Tensile Strength, min ksi [Mpa] | Yield Strength, min ksi [Mpa] |
| TP304 | S30400 | 75 [515] | 30 [205] |
| TP304L | S30403 | 70 [485] | 25 [170] |
| TP304H | S30409 | 75 [515] | 30 [205] |
| TP316 | S31600 | 75 [515] | 30 [205] |
| TP316L | S31603 | 70 [485] | 25 [170] |
| TP316H | S31609 | 75 [515] | 30 [205] |
| TP321 | S32100 | 75 [515] | 30 [205] |
| TP321H | S32109 | 75 [515] | 30 [205] |
| TP347 | S34700 | 75 [515] | 30 [205] |
| TP347H | S34709 | 75 [515] | 30 [205] |
5. Available Size Range
| OD | Thickness | ||
| mm | inch | mm | SCH |
| 21.3~60.3 | 1/2''~ 2'' | 1.65 ~ 5.54 | SCH5S ~ 80S |
| *If the steel grades and size you are looking for are not listed above, please contact us for further information. | |||
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