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ASTM A269 / A269M Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
This specification covers grades of nominal-wallthickness, stainless steel tubing for general corrosion-resisting and low- or high-temperature service, as designated. The tubing sizes and thicknesses usually furnished to this specification are 1⁄4 in. (6.4 mm) in inside diameter and larger and 0.020 in. (0.51 mm) in nominal wall-thickness and heavier. Mechanical property requirements do not apply to tubing smaller than 1⁄8 in. (3.2 mm) in inside diameter or 0.015 in. (0.38 mm) in thickness.
Diameter Tolerance ASTM A269 Tube
NPS |
ASTM A269 Tube OD Tolerance |
|||
+ |
– |
|||
inch |
mm |
inch |
mm |
|
1/8~1 1 /2 |
1/64(0.015) |
0.4 |
1/32(0.031) |
0.8 |
WALL THICKNESS TOLERANCE ASTM A269 STEEL TUBE
NPS |
ASTM A269 Tube Tolerance, % |
|
+ |
– |
|
1/8-2 1 /2 |
20.0 |
12.5 |
3~18, t/D≤ 5% |
22.5 |
12.5 |
3~18, t/D> 5% |
15.0 |
12.5 |
≥ 20, welded |
17.5 |
12.5 |
≥ 20, seamless, t/D≤ 5% |
22.5 |
12.5 |
≥ 20, seamless, t/D> 5% |
15.0 |
12.5 |
Grades |
UNS Designation |
TP201 |
S20100 |
TP201LN |
S20153 |
TP304 |
S30400 |
TP304L |
S30403 |
TP304LN |
S30453 |
TP316 |
S31600 |
TP316L |
S31603 |
TP316LN |
S31653 |
TP317 |
S31700 |
TP321 |
S32100 |
TP347 |
S34700 |
TP348 |
S34800 |
TP XM - 10 |
S21900 |
TP XM - 15 |
S38100 |
TP XM - 19 |
S20910 |
TP XM - 29 |
S24000 |
- |
S31254 |
- |
S31725 |
- |
S31726 |
- |
S31727 |
- |
S32053 |
- |
S30600 |
- |
S32654 |
- |
S34565 |
- |
S35045 |
- |
N08367 |
- |
N08926 |
- |
N08904 |