Heat Exchanger High Pressure Stainless Steel Tubing / Pipe ASTM A312 TP321
Alloy 321 stainless steel is a titanium-stabilized version of alloy 304, used in particular applications within the sensitizing temperature range. It’s resistance to sensitization, coupled with it higher strength, at high temperatures makes it suitable in application where alloy 304 will become sensitized, or where 304L has insufficient hot strength.
1. 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. |
TP201, TP304, TP304L, TP316L
4. 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 | … |
5. 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] |
One Stop Piping Solution
Seamless Steel Pipe Distribution
Piping Projects Support
For any requirements, please do not hesitate to contact us.