A269 specification for seamless and welded Austenitic stainless steel tubing for general service. This specification covers grades of nominal-wall-thickness, stainless steel tubing for general corrosion-resisting and low- or high-temperature service.
Typical Chemical Properties
|
304 |
304L |
316 |
316L |
Carbon, max, % |
0.08 |
0.035* |
0.08 |
0.035* |
Manganese, Max, % |
2.00 |
2.00 |
2.00 |
2.00 |
Phosphorous, Max, % |
0.045 |
0.045 |
0.045 |
0.045 |
Sulfur, Max, % |
0.03 |
0.03 |
0.03 |
0.03 |
Silicon, Max, % |
1.00 |
1.00 |
1.00 |
1.00 |
Chromium, % |
18.0 – 20.0 |
18.0 – 20.0 |
16.0 – 18.0 |
16.0 – 18.0 |
Nickel, % |
8.0 – 11.0 |
8.0 – 12.0 |
10.0 – 14.0 |
10.0 – 14.0 |
Molybdenum, % |
0 |
0 |
2.00 – 3.00 |
2.00 – 3.00 |
Typical Mechanical Properties
Typical Mechanical Properties |
304 |
304L |
316 |
316L |
Tensile Strength Minimum ksi (MPa) |
75 (515) |
70 (485) |
75 (515) |
70 (485) |
Yield Strength Minimum ksi (MPa) |
30 (205) |
25 (170) |
30 (205) |
25 (170) |
Elongation Min |
35% |
35 |
35% |
35 |
Rockwell Hardness Number, maximum |
B90 |
B90 |
B90 |
B90 |
Typical Permissible Variations
Size, Outside Diameter, (inch) |
Typical Permissible Variations in Outside Diameter |
Typical Permissible Variations in Wall Thickness |
Up to .500 |
+/-.005" |
+/- 15 % |
.501 to 1.499 |
+/-.005" |
+/- 10 % |
1.500 to 3.499 |
+/-.010" |
+/- 10 % |
3.500 to 5.499 |
+/-.015" |
+/- 10 % |
5.500 to 7.999 |
+/-.030" |
+/- 10 % |
8.000 to 11.999 |
+/-.040" |
+/- 10 % |
12.000 to 14.000 |
+/-.050" |
+/- 10 % |
* for small diameter or thin walls or both Carbon maximum is 0.040 %
Information provided is “Typical” for specific requirements please inquire.