Material |
Chemical
Composition (wt%) |
C |
Si |
Mn |
Cu |
Ni |
Cr |
Mo |
W |
N |
SM13CR |
0.22 |
1.00 |
1.00 |
— |
— |
12.0
~14.0 |
— |
— |
— |
SM13CRI |
0.03 |
0.50 |
1.50 |
— |
1.5
~3.0 |
10.5
~12.5 |
0.2
~0.4 |
— |
— |
SM13CRM |
0.03 |
0.50 |
1.00 |
— |
4.0
~5.5 |
11.5
~13.5 |
0.5
~1.2 |
— |
— |
SM13CRS |
0.03 |
0.50 |
0.50 |
— |
5.0
~6.5 |
11.5
~13.5 |
1.8
~2.5 |
— |
— |
SM22CR |
0.03 |
1.00 |
2.00 |
— |
4.5
~6.5 |
21.0
~23.0 |
2.5
~3.5 |
— |
0.08
~0.20 |
SM25CR |
0.03 |
0.75 |
1.00 |
0.2
~0.8 |
5.5
~7.5 |
24.0
~26.0 |
2.5
~3.5 |
0.10
~0.50 |
0.10
~0.30 |
SM25CRW |
0.03 |
0.80 |
1.00 |
0.2
~0.8 |
6.0
~8.0 |
24.0
~26.0 |
2.5
~3.5 |
2.01
~2.50 |
0.24
~0.32 |
|
CO2 Corrosion
Resistance
| (1) |
High Cr steels such as 13Cr and
Super 13CR stainless steels are resistant to CO2
corrosion and have been widely, and successfully
used in wells containing CO2
and CI-. |
| (2) |
13CR & 13CRI critical temperature is
150°C ; For 13 CRM & 13CRS is 175°C.
22CR and 25CR Duplex stainless steels have excellent
corrosion resistance up to a temperature of
200°C and 250°C, respectively.
|
Sulfide Stress Corrosion
Cracking (SSCC) Resistance
| (1) |
13CR is not advisable for usage
in environments containing H2S
(> 0.003 atm). |
| (2) |
13CRS has good SSCC resistance in evironments
containing up to 0.03atm H2S. |
| (3) |
Duplex stainless steels (SM22CR, SM25CR, SM25CRW)
are recommendable for more severe conditions over
marternsitic stainless steel (SM13CRS) in a small
amount of H2S |
Erosion Properties
| (1) |
13CR, Super 13CR and Duplex stainless
steels have superior erosion properties. |
Recommendable Brine for
13CR, Super 13CR and Duplex Stainless Steel
Special
Handling Procedure of Sumitomo's High Alloy Materials
(PDF 86 kB)
