we have obtained ISO 9001, ISO 14001, ISO 45001, CE, AAA-level credit rating certification, etc.
ASTM A790/A790M Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe. This specification covers seamless and straight-seamwelded ferritic/austenitic steel pipe intended for general corrosive service, with particular emphasis on resistance to stress corrosion cracking. These steels are susceptible to embrittlement if used for prolonged periods at elevated temperatures.
Chemical Composition
|
UNS# |
C |
Mn |
P |
S |
Si |
Ni |
Cr |
|
S31200 |
0.030 |
2.00 |
0.045 |
0.030 |
1.0 |
5.5-6.5 |
24-26 |
|
S31260 |
0.030 |
1.00 |
0.030 |
0.030 |
0.75 |
5.5-7.5 |
24-26 |
|
S31500 |
0.030 |
1.20-2.00 |
0.030 |
0.030 |
1.4-2.0 |
4.2-5.2 |
18-19 |
|
S31803 |
0.030 |
2.00 |
0.030 |
0.020 |
1.0 |
4.5-6.5 |
21-23 |
|
S32003 |
0.030 |
2.00 |
0.030 |
0.020 |
1.0 |
3.0-4.0 |
19.5-22.5 |
|
S32101 |
0.040 |
4.0-6.0 |
0.040 |
0.030 |
1.0 |
1.35-1.70 |
21-22 |
|
S32202 |
0.030 |
2.00 |
0.040 |
0.010 |
1.0 |
1.0-2.8 |
21.5-24.5 |
|
S32205 |
0.030 |
2.00 |
0.030 |
0.020 |
1.0 |
4.5-6.5 |
22-23 |
|
S32304 |
0.030 |
2.50 |
0.040 |
0.040 |
1.0 |
3.0-5.5 |
21.5-24.5 |
|
S32506 |
0.030 |
1.00 |
0.040 |
0.015 |
0.9 |
5.5-7.2 |
24-26 |
|
S32520 |
0.030 |
1.50 |
0.035 |
0.020 |
0.8 |
5.5-8.0 |
24-26 |
|
S32550 |
0.040 |
1.50 |
0.040 |
0.030 |
1.0 |
4.5-6.5 |
24-27 |
|
S32707 |
0.030 |
1.50 |
0.035 |
0.010 |
0.5 |
5.5-9.5 |
26-29 |
|
S32750 |
0.030 |
1.20 |
0.035 |
0.020 |
0.8 |
6.0-8.0 |
24-26 |
|
S32760 |
0.030 |
1.00 |
0.030 |
0.010 |
1.0 |
6.0-8.0 |
24-26 |
|
S32808 |
0.030 |
1.10 |
0.030 |
0.010 |
0.5 |
7.0-8.2 |
27-27.9 |
|
S32900 |
0.080 |
1.00 |
0.040 |
0.030 |
0.75 |
2.5-5.0 |
23-28 |
|
S32906 |
0.030 |
0.8-1.5 |
0.030 |
0.030 |
0.8 |
5.8-7.5 |
28-30 |
|
S32950 |
0.030 |
2.00 |
0.035 |
0.010 |
0.6 |
3.5-5.2 |
26-29 |
|
S33207 |
0.030 |
1.50 |
0.035 |
0.010 |
0.8 |
6.0-9.0 |
29-33 |
|
S39274 |
0.030 |
1.00 |
0.030 |
0.020 |
0.8 |
6.0-8.0 |
24-26 |
|
S39277 |
0.025 |
0.80 |
0.025 |
0.002 |
0.8 |
6.5-8.0 |
24-26 |
|
S81921 |
0.030 |
2.0-4.0 |
0.040 |
0.030 |
1.0 |
2.0-4.0 |
19-22 |
|
S82011 |
0.030 |
2.0-3.0 |
0.040 |
0.020 |
1.0 |
1.0-2.0 |
20.5-23.5 |
|
S82121 |
0.030 |
1.0-2.5 |
0.040 |
0.010 |
1.0 |
2.0-4.0 |
21-23 |
|
S82441 |
0.030 |
2.5-4.0 |
0.035 |
0.005 |
0.7 |
3.0-4.5 |
23-25 |
