Offshore Application

OSNA®-10 and OSNA®-30                                                                                    cunova_sRGB_Logo_Endorsement

cunova’s Marine Applications Division specializes in the production and supply of copper-nickel alloys for seawater piping system. Since decades, these alloys have successfully used in:

> Merchant and military shipbuildingkme_3_02_01_00001_b_00_c
> Offshore oil and gas installations
> Coastal petroleum and petrochemical processing plants
> Seawater desalination plants
> Coastal electricity generation plants

Copper-nickel alloys are widely applied in:

> Seawater cooling systems
> Fire water systems
> Sanitary systems
> Deck steam pipes
> Hydraulic and pneumatic systems
> Seawater feed lines to desalination and processing units
> Splash zone cladding

 

COMPARISON OF STANDARD SPECIFICATIONS FOR OSNA®-10 (CUNI 90/10)

 

cunova Alloy OSNA®-10 (CuNi 90/10)

DIN CEN/TS 13388 CW352H

DIN86019 WL 2.197

BS 2871(1)  CN 102

DIN EN 12449

EEMUA 234-2016 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(1) no longer valid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

The OSNA ®10 offshore product range is based on:

> EEMUA –234/1-2 : 2016   Tubes Seamless and Welded (“pipes” in this web site)
> EEMUA –234/3-6 : 2016   Flanges Composite and Solid
> EEMUA –234/7-13 : 2016  Fittings

The unique dimensional range from ½ inch to 36 inch ensures the supply of the entire piping systems from one source. Although the pipe dimensions of 38 and 40 inch are not included in the EEMUA 234 – 2016 they are available here as they are commonly specified in offshore projects. Based on ASME specifications, additional components are included.