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Help CenterASTM A270 Seamless and Welded Austenitic and Ferritic and Austenitic Stainless Steel Sanitary Tube
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ASTM A270 Seamless and Welded Austenitic and Ferritic and Austenitic Stainless Steel Sanitary Tubing
TABLE 1 Chemical Requirements | ||||||||||||
Element |
Grade |
TP 304 |
TP 304L |
... |
TP 316 |
TP 316L |
... |
... |
... |
... |
... |
2003 |
UNS Designation A |
S30400 |
S30403 |
S31254 |
S31600 |
S31603 |
N08926 |
N08367 |
S31803 |
S32205 |
S32750 |
S32003 |
|
Composition, % | ||||||||||||
Carbon, max |
|
0.080 |
0.035B |
0.020 |
0.080 |
0.035B |
0.020 |
0.030 |
0.030 |
0.030 |
0.030 |
0.030 max |
Manganese,max |
|
2.00 |
2.00 |
1.00 |
2.00 |
2.00 |
2.00 |
2.00 |
2.00 |
2.00 |
1.20 |
2.00 max |
Phosphorus,max |
|
0.045 |
0.045 |
0.03 |
0.045 |
0.045 |
0.03 |
0.04 |
0.03 |
0.03 |
0.035 |
0.03 |
Sulfur, max |
|
0.03 |
0.03 |
0.01 |
0.03 |
0.03 |
0.01 |
0.03 |
0.02 |
0.02 |
0.02 |
0.020 max |
Silicon, max |
|
1.00 |
1.00 |
0.80 |
1.00 |
1.00 |
0.50 |
1.00 |
1.00 |
1.00 |
0.80 |
1.00 max |
Nickel |
|
8.0-11.0 |
8.0-12.0 |
17.5-18.5 |
10.0-14.0 |
10.0-14.0 |
24.0-26.0 |
23.5-25.5 |
4.5-6.5 |
4.5-6.5 |
6.0-8.0 |
3.0-4.0 |
Chromium |
|
18.0-20.0 |
18.0-20.0 |
19.5-20.5 |
16.0-18.0 |
16.0-18.0 |
19.0-21.0 |
20.0-22.0 |
21.0-23.0 |
22.0-23.0 |
24.0-26.0 |
19.5-22.5 |
Molybdenum |
|
... |
... |
6.0-6.5 |
2.00-3.00 |
2.00-3.00 |
6.0-7.0 |
6.0-7.0 |
2.5-3.5 |
3.0-3.5 |
3.0-5.0 |
1.5-2.0 |
Nitrogen C |
|
... |
... |
0.18-0.22 |
... |
... |
0.15-0.25 |
0.18-0.25 |
0.08-0.20 |
0.14-0.20 |
0.24-0.32 |
0.14-0.20 |
Copper |
|
... |
... |
0.50-1.00 |
... |
... |
0.50-1.5 |
0.75 max |
... |
... |
0.50 max |
... |
A New designation established in accordance with Practice E 527 and SAE J 1086. | ||||||||||||
B For small diameter or thin walls or both, where many drawing passes are required, a carbon maximum of 0.040 % is necessary in grades TP304L and TP316L. Small outside diameter tubes are defined as those | ||||||||||||
less than 0.500 in. (12.7 mm) in outside diameter and light wall tubes as those less than 0.049 in. (1.24 mm) in average wall thickness (0.044 in. (1.12 mm) in minimum wall thickness). | ||||||||||||
C The method of analysis for nitrogen shall be a matter of agreement between the purchaser and manufacturer. | ||||||||||||
TABLE 2 Permissible Variations in Dimensions |
|
|||||||||
Size,Outside,Diameter,in. (mm) |
Permissible Variations in Outside Diameter, in. (mm) |
Permissible Variations in Cut Length, in. (mm)A |
|
|||||||
Over |
Under |
Over |
Under |
|
||||||
1.000 (25.4) and under |
0.005 (0.13 |
0.005 (0.13 |
1⁄8 (3.2) |
0 |
|
|||||
Over 1 (25.4) to 2 (50.8) |
0.008 (0.20) |
0.008 (0.20) |
1⁄8 (3.2) |
0 |
|
|||||
Over 2 (50.8) to 3 (76.2) |
0.010 (0.25) |
0.010 (0.25) |
1⁄8 (3.2) |
0 |
|
|||||
Over 3 (76.2) to 4 (101.6) |
0.015 (0.38) |
0.015 (0.38) |
1⁄8 (3.2) |
0 |
|
|||||
Over 4 (101.6) to 5 1⁄2 (139.7), excl |
0.015 (0.38) |
0.015 (0.38) |
3⁄16 (4.8) |
0 |
|
|||||
5 1⁄2 (139.7) to 8 (203.2), excl |
0.030 (0.76) |
0.030 (0.76) |
3⁄16 (4.8) |
0 |
|
|||||
8 (203.2) to 12 (304.8) |
0.050 (1.27) |
0.050 (1.27) |
3⁄16 (4.8) |
0 |
|
|||||
A The cut tolerances do not apply to Pharmaceutical Tubing in S2 (see paragraph S2.7). |
|
|||||||||
|
|
|
|
|
|||||||
TABLE S2.1 Tensile and Hardness Requirements | ||||||||||
Grade |
UNS |
Tensile |
Yield |
Elongation |
Rockwell |
|||||
TP304 |
S30400 |
75 (515) |
30 (205) |
35 |
B90 |
|||||
TP304L |
S30403 |
70 (485) |
25 (170) |
35 |
B90 |
|||||
TP316 |
S31600 |
75 (515) |
30 (205) |
35 |
B90 |
|||||
TP316L |
S31603 |
70 (485) |
25 (170) |
35 |
B90 |
|||||
|
S31803 |
90 (620) |
65 (450) |
25 |
C30.5 |
|||||
2205 |
S32205 |
95 (655) |
70 (485) |
25 |
C30.5 |
|||||
2507 |
S32750 |
116 (800) |
80 (550) |
15 |
C32 |
|||||
2003 |
S32003 |
90 (620) |
65 (450) |
25 |
C32 |
|||||
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