Seamless / Welded Stainless Steel Tubing ASTM A312 TP321 For Aerospace Industry
Stainless Steel Tubing Round Thin Wall Steel Tubing ASTM A312 TP321
ASTM A312 TP321 Seamless Pipes is generally considered to have comparable weldability to 304 and 304L stainless with the main difference being the titanium addition which reduces or prevents carbide precipitation during welding.
Standards:
ASTM A312 Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
Application:
Instrument Tubing
Chromatography tubing
Hydraulic Tubing
High Pressure Tubing
Cleaned Tubing
Multi Core Tubing
Chemical Requirements
| Chemical Composition % | ||||||||||
| Grade | UNS Designation | C | Mn | P | S | Si | Cr | Ni | Mo | Other |
| TP321 | S32100 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17.0-19.0 | 9.0-12.0 | … | N: 0.1 |
Mechanical properties
| Mechanical properties | |||
| Grade | UNS Designation | Tensile Strength, min ksi (Mpa) |
Yield Strength, min ksi(Mpa) |
| TP321 ≤ 3/8'' | S32100 | 75 (515) | 30 (205) |
| TP321 ＞3/8'' | 70 (485) | 25 (170) | |
Mark: As required.
Inspection and Test: chemical composition test, mechanical properties test(tensile, yield, elongation), process properties test(flatting, flaring, bending, hardness, impact, etc.), appearance and size test, non-destructive inspection test, hydrostastic test.
Delivery status: Annealed, normalized, normalized+Tempered, etc.
Surface treatment: oil impregnation, paint, passivation, phosphating, shot blasting etc.
Packing: Exporting package/wooden box /as requirement.
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