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ASTM A268/A268M-22
Standard Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service
Přeložit název
NORMA vydána dne 1.5.2022
Informace o normě:
Označení normy: ASTM A268/A268M-22
Poznámka: NEPLATNÁ
Datum vydání normy: 1.5.2022
Kód zboží: NS-1064837
Počet stran: 7
Přibližná hmotnost: 21 g (0.05 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Kategorie - podobné normy:
Anotace textu normy ASTM A268/A268M-22 :
Keywords:
ferritic stainless steel, seamless steel tube, stainless steel tube, steel tube, welded steel tube,, ICS Number Code 23.040.10 (Iron and steel pipes)
Doplňující informace
| 1. Scope | |||||||||||||||||
|
1.1?This specification TABLE 1 Grade |
TP439 |
. . . |
. . . |
TP430 Ti |
TP |
TP |
18Cr-2Mo |
29-4 |
29-4-2 |
26-3-3 |
25-4-4 |
... |
. . . |
. . . |
. . . |
. . . |
TP468 |
|
UNS |
S43035 |
S43932 |
S41500B |
S43036 |
S44627 |
S44626 |
S44400 |
S44700 |
S44800 |
S44660 |
S44635 |
S44735 |
S32803 |
S40977 |
S43940 |
S42035 |
S46800 |
|
Element |
Composition, % |
||||||||||||||||
|
C, max |
0.07 |
0.030 |
0.05 |
0.10 |
0.01A |
0.06 |
0.025 |
0.010 |
0.010 |
0.030 |
0.025 |
0.030 |
0.015C |
0.03 |
0.03 |
0.08 |
0.030 |
|
Mn, max |
1.00 |
1.00 |
0.51.0 |
1.00 |
0.40 |
0.75 |
1.00 |
0.30 |
0.30 |
1.00 |
1.00 |
1.00 |
0.5 |
1.50 |
1.00 |
1.00 |
1.00 |
|
P, max |
0.040 |
0.040 |
0.03 |
0.040 |
0.02 |
0.040 |
0.040 |
0.025 |
0.025 |
0.040 |
0.040 |
0.040 |
0.020 |
0.040 |
0.040 |
0.045 |
0.040 |
|
S, max |
0.030 |
0.030 |
0.03 |
0.030 |
0.02 |
0.020 |
0.030 |
0.020 |
0.020 |
0.030 |
0.030 |
0.030 |
0.005 |
0.015 |
0.015 |
0.030 |
0.030 |
|
Si, max |
1.00 |
1.00 |
0.60 |
1.00 |
0.40 |
0.75 |
1.00 |
0.20 |
0.20 |
1.00 |
0.75 |
1.00 |
0.50 |
1.00 |
1.00 |
1.00 |
1.00 |
|
Ni |
0.50 max |
0.50 |
3.55.5 |
0.75 max |
0.5D max |
0.50 max |
1.00 max |
0.15 max |
2.02.5 |
1.03.50 |
3.54.5 |
1.00 max |
3.04.0 |
0.301.00 |
. . . |
1.02.5 |
0.50 |
|
Cr |
17.00 |
17.019.0 |
11.514.0 |
16.00 |
25.027.5 |
25.027.0 |
17.519.5 |
28.030.0 |
28.030.0 |
25.028.0 |
24.526.0 |
28.00 |
28.0 |
10.50 |
17.50 |
13.5 |
18.00 |
|
19.00 |
? |
19.50 |
30.00 |
? |
? |
? |
? |
||||||||||
|
Mo |
... |
... |
0.51.0 |
... |
0.751.50 |
0.751.50 |
1.752.50 |
3.54.2 |
3.54.2 |
3.04.0 |
3.54.5 |
3.604.20 |
1.82.5 |
. . . |
. . . |
0.21.2 |
. . . |
|
Al, max |
0.15 |
0.15 |
. . . |
... |
... |
... |
... |
... |
... |
... |
... |
... |
. . . |
. . . |
. . . |
. . . |
. . . |
|
Cu, max |
... |
... |
. . . |
... |
0.2 |
0.20 |
... |
0.15 |
0.15 |
... |
... |
... |
. . . |
. . . |
. . . |
. . . |
. . . |
|
N, max |
0.04 |
0.030 |
. . . |
... |
0.015 |
0.040 |
0.035 |
0.020E |
0.020E |
0.040 |
0.035 |
0.045 |
0.020 |
0.030 |
. . . |
. . . |
0.030 |
|
Ti |
0.20 + 4 (C |
? |
. . . |
5 ? C min; |
... |
7 ? (C + N) |
... |
... |
... |
... |
... |
... |
. . . |
. . . |
0.100.60 |
0.300.50 |
0.070.30 |
|
? |
+ N) min; |
? |
? |
0.75 max |
? |
but no less |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
|
? |
1.10 max |
? |
? |
? |
? |
than 0.20 |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
|
|
? |
? |
? |
? |
? |
? |
min; 1.00 |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
|
? |
? |
? |
? |
? |
? |
max |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
|
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
|
NbG |
... |
? |
. . . |
... |
0.050.20 |
... |
... |
... |
... |
... |
... |
... |
0.15 |
. . . |
(3 ? %C + 0.30) min |
. . . |
0.100.60 |
|
Other |
? |
(Ti + Nb) = {0.20 + 4 ? (C + N)} min.; 0.75 max |
? |
? |
? |
? |
(Ti + Nb) = 0.020 + 4 ? (C + N) min; 0.80 max |
? |
? |
(Ti + Nb) = 0.201.00 and 6 ? (C + N) min |
(Ti + Nb) = 0.020 + 4 ? (C + N) min; 0.80 max |
(Ti + Nb) = 0.020 |
? |
? |
? |
? |
(Ti + Nb) = 0.020 + 4 ? (C + N) min; 0.80 max |
|
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
|
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
1.2?An optional supplementary requirement is provided, and when desired, shall be so stated in the order.
1.3?The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. The inch-pound units shall apply unless the M designation of this specification is specified in the order.
1.4?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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