OSNA®-10 and OSNA®-30
The sea and its atmosphere is one of the most corrosive environments on the earth. Seagoing vessels need large amounts of seawater daily for
> fire water systems
> sprinkler systems
> cooling systems
> ballast systems
The materials used for seawater piping systems therefore must be highly resistant to cavitation erosion, crevice and galvanic corrosion as well as stress corrosion cracking. Moreover such materials must satisfy high standards in terms of hot and cold working properties and weldability
up to 1200 mm O.D. seam-welded
DIN CEN/TS 13388 (CW352H)
DIN 86019 2.1972
BS 2871 CN 102
ASTM-B-466 C 70600
MIL-T-16420 K C 70600
JIS H 3300 C 7060T
up to 1200 mm O.D. seam-welded
DIN CEN/TS 13388 (CW354H)
DIN EN 12449
ASTM-B-466 C 71500
MIL-T-16420 K C 71500
JIS H 3300 C 7150T
|
COMPARISON OF STANDARD SPECIFICATIONS FOR OSNA®-10 (CUNI 90/10) |
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|
|
KME Alloy OSNA®-10 (CuNi 90/10) |
DIN CEN/TS 13388 CW352H |
DIN86019 WL 2.197 |
BS 2871(1) CN 102 |
DIN EN 12449 |
EEMUA 144-1987 UNS C7060X |
MIL-T-16420K ASTM B466(2) C70620 |
JIS H 3300 C7060 T |
|
Ni % |
10.0 – 11.0 |
9.0 – 11.0 |
9.0 – 11.0 |
10.0 – 11.0 |
9.0 – 11.0 |
10.0 – 11.0 |
9.0 – 11.0 |
9.0 – 11.0 |
|
Fe % |
1.5 – 1.8 |
1.0 – 2.0 |
1.5 – 1.8 |
1.0 – 2.0 |
1.0 – 2.0 |
1.5 – 2.0* |
1.0 – 1.8 |
1.0 – 1.8 |
|
Mn % |
0.6 – 1.0 |
0.5 – 1.0 |
0.5 – 1.0 |
0.5 – 1.0 |
0.5 – 1.0 |
0.5 – 1.0 |
max. 1.0 |
0.2 – 1.0 |
|
C % |
max. 0.02 |
max. 0.05 |
max. 0.05 |
max. 0.05 |
max. 0.05 |
max. 0.05 |
max. 0.05 |
max. 0.05 |
|
Pb % |
max. 0.01 |
max. 0.02 |
max. 0.01 |
max. 0.01 |
max. 0.02 |
max. 0.01 |
max. 0.02 |
max. 0.05 |
|
S % |
max. 0.005 |
max. 0.05 |
max. 0.005 |
max. 0.05 |
max. 0.05 |
max. 0.02 |
max. 0.02 |
- |
|
P % |
max. 0.02 |
max. 0.02 |
max. 0.02 |
- |
max. 0.02 |
max. 0.02 |
max. 0.02 |
- |
|
Zn % |
max. 0.05 |
max. 0.05 |
max. 0.05 |
- |
max. 0.05 |
max. 0.20 |
max. 0.05 |
max. 0.05 |
|
Sn % |
|
max. 0.03 |
- |
- |
max. 0.03 |
- |
- |
- |
|
other imp. |
max. 0.20 |
max. 0.20 |
max. 0.20 |
max. 0.30 |
max. 0.20 |
max. 0.30 |
- |
- |
|
Cu % |
rem. |
rem. |
rem. |
rem. |
rem. |
rem. |
rem. |
+Ni+Fe+Mn min 99.5 |
(1) no longer valid
(2) equal to C 70600 for subsequent welding
* the iron content has been specified to improve corrosion resistance
|
COMPARISON OF STANDARD SPECIFICATIONS FOR OSNA®-30* (CUNI 70/30) |
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|
|
KME Alloy OSNA®-30 (CuNi 70/30) |
DIN CEN/TS 13388 CW354H |
BS 2871(1) CN 107 |
DIN EN 12449 |
MIL-T-16420K ASTM B466(2) C71520 |
JIS H3300 C7150 T |
|
Ni % |
30.0 – 32.0 |
30.0 – 32.0 |
30.0 – 32.0 |
30.0 – 32.0 |
29.0 – 33.0 |
29.0 – 33.0 |
|
Fe % |
0.6 – 1.0 |
0.4 – 1.0 |
0.4 – 1.0 |
0.4 – 1.0 |
0.4 – 1.0 |
0.4 – 1.0 |
|
Mn % |
0.5 – 1.0 |
0.5 – 1.5 |
0.5 – 1.5 |
0.5 – 1.5 |
max. 1.0 |
0.2 – 1.0 |
|
C % |
max. 0.04 |
max. 0.05 |
max. 0.05 |
max. 0.05 |
max. 0.05 |
|
|
Pb % |
max. 0.01 |
max. 0.02 |
max. 0.03 |
max. 0.02 |
max. 0.02 |
max. 0.05 |
|
S % |
max. 0.01 |
max. 0.05 |
max. 0.02 |
max. 0.05 |
max. 0.02 |
|
|
P % |
max. 0.01 |
max. 0.02 |
max. 0.02 |
max. 0.02 |
max. 0.02 |
|
|
Zn % |
max. 0.20 |
max. 0.50 |
max. 0.50 |
max. 0.50 |
max. 0.50 |
max. 0.50 |
|
Sn % |
|
max. 0.05 |
max. 0.05 |
|||
|
other imp. |
max. 0.20 |
max. 0.20 |
max. 0.30 |
max. 0.20 |
||
|
Cu % |
rem. |
rem. |
rem. |
rem. |
rem. |
+Ni+Fe+Mn min 99.5 |
(1) no longer valid
(2) equal to C 71500 for subsequent welding