Umbilical Tubes

Serving the global Oil & Gas operators and fabricators our stainless steel umbilical tubing meets the toughest of specification demands.  

With integrated production and extensive experience in the manufacture of Super Duplex Stainless Steels we have full control of our manufacturing routes from which we define the optimal properties of corrosion resistance and mechanical properties to meet individual Customer requirements.

 

Coiled Tubing:
Our umbilical tubes are typically supplied in orbitally welded coil form or upon request in straight lengths

 

Application: Dynamic Umbilicals

Product: Steel Tube Umbilical Lines

DMV 25.7 NS Nominal Composition (WT%)
CSiMnPSCrNiMoNCuFe
0.020.60.60.02<0.00225.57.04.00.30.25Bal.
Trace elements are always monitored (i.e.oxygen,boron).
Pitting Resistance Equivalent Number: min 42.5

Common Size Ranges for Umbilical Tubes

Coiled Tubes

Inner DiameterWall Thickness
Inchmmfrom [mm]to [mm]
3/89.531.02.0
1/212.701.02.6
5/815.881.02.6
3/419.051.13.0
125.401.23.0
1 1/431.751.53.0
1 1/238.102.03.0
Other dimensions available on request.

Straight Tubes

Inner Diameter

Wall Thickness
3/89.531.02.0
1/212.701.02.6
5/815.881.02.6
3/419.051.13.0
125.401.23.0
1 1/431.751.53.0
1 1/238.102.03.0
1 3/444.452.55.5
250.802.76.0
2 1/457.152.95.5
2 3/469.853.26.0
376.203.010.5
3 1/482.553.510.5
3 1/288.904.012.5

Mechanical Properties at 20ºC

 According to ASTM A789Average Values
Yield Strength (0.2% offset)Min. 550 MPa (80ksi)750 MPa (109ksi)
Ultimate Tensile StrengthMin. 800 MPa (116ksi)950 MPa (138ksi)
Elongation in 2" or 50mmMin. 15%35%
HardnessMax.32 HRC(max.300HBW)27HRC

Corrosion Resistance

Critical Pitting & Critical Crevice Temperatures
CPT 85ºC (176ºF)
CCT 55ºC (131ºF)
Magnification at 20X, max. Weight loss 1.0 g/m2
CPT and CCT values according to ASTM G48 method E and method F, respectively.
Test surfaces dry ground to 120mesh. Corrosion results vary with product form and surface finish.

Tensile Properties At Elevated Temperatures

Temperature0.2% Yield Strength (Average)Ultimate Tensile Strength (Average)
ºCºFMPaksiMPaksi
2068750109950138
6515066096920133
9320064093895130
12125062591870127
14930062589855124
20440056682845123
26050054579825120
31560053577835121
34365052576813118
37170051775807117
39875051074798116

Application: Static Umbilicals

Product: Steel Tube Umbilical Lines

DMV 25.7 NS Nominal Composition (WT%)
CSiMnPSCrNiMoNCuFe
0.020.60.60.02<0.00225.57.04.00.30.25Bal.

Common Size Ranges for Umbilical Tubes

Coiled Tubes

Inner DiameterWall Thickness
Inchmmfrom [mm]to [mm]
3/89.531.02.0
1/212.701.02.6
5/815.881.02.6
3/419.051.13.0
125.401.23.0
1 1/431.751.53.0
1 1/238.102.03.0
Other dimensions available on request.

Straight Tubes

Inner DiameterWall Thickness
Inchmmfrom [mm]to [mm]
3/89.531.02.0
1/212.701.02.6
5/815.881.02.6
3/419.051.13.0
125.401.23.0
1 1/431.751.53.0
1 1/238.102.03.0
1 3/444.452.55.5
250.802.76.0
2 1/457.152.95.5
2 3/469.853.26.0
376.203.010.5
3 1/482.553.510.5
3 1/288.904.012.5
Other dimensions available on request.

Mechanical Properties at 20ºC

 According to ASTM A789Average Values
Yield Strength (0.2% offset)Min. 550 MPa (80ksi)750 MPa (109ksi)
Ultimate Tensile StrengthMin. 800 MPa (116ksi)950 MPa (138ksi)
Elongation in 2" or 50mmMin. 15%35%
HardnessMax.32 HRC (max.300HBW)27HRC

Corrosion Resistance

Critical Pitting & Critical Crevice Temperatures
CPT 85ºC (176ºF)
CCT 55ºC (131ºF)
Magnification at 20X, max. Weight loss 1.0 g/m2
PT and CCT values according to ASTM G48 method E and method F, respectively.
Test surfaces dry ground to 120mesh. Corrosion results vary with product form and surface finish.

Tensile Properties at Elevated Temperatures

Temperature0.2% Yield Strength (Average)Ultimate Tensile Strength (Average)
ºCºFMPaksiMPaksi
2068750109950138
6515066096920133
9320064093895130
12125062591870127
14930062589855124
20440056682845123
26050054579825120
31560053577835121
34365052576813118
37170051775807117
39875051074798116

Application: Umbilical Connection System

DMV 25.7 NS Nominal Composition (WT%)
CSiMnPSCrNiMoNCuFe
0.020.60.60.02<0.00225.57.04.00.30.25Bal.
Trace elements are always monitored (i.e.oxygen,boron).
Pitting Resistance Equivalent Number: min 42.5

Common Size Ranges for Umbilical Tubes

Coiled Tubes

Inner DiameterWall Thickness
Inchmmfrom [mm]to [mm]
3/89.531.02.0
1/212.701.02.6
5/815.881.02.6
3/419.051.13.0
125.401.23.0
1 1/431.751.53.0
1 1/238.102.03.0
Other dimensions available on request.

Straight Tubes

Inner DiameterWall Thickness
Inchmmfrom [mm]to [mm]
3/89.531.02.0
1/212.701.02.6
5/815.881.02.6
3/419.051.13.0
125.401.23.0
1 1/431.751.53.0
1 1/238.102.03.0
1 3/444.452.55.5
250.802.76.0
2 1/457.152.95.5
2 3/469.853.26.0
376.203.010.5
3 1/482.553.510.5
3 1/288.904.012.5
Other dimensions available on request.

Mechanical Properties at 20ºC

 According to ASTM A789Average Values
Yield Strength (0.2% offset)Min. 550 MPa (80ksi)750 MPa (109ksi)
Ultimate Tensile StrengthMin. 800 MPa (116ksi)950 MPa (138ksi)
Elongation in 2" or 50mmMin. 15%35%
HardnessMax. 32 HRC (max.300HBW)27HRC

Corrosion Resistance

Critical Pitting & Critical Crevice Temperatures
CPT 85ºC (176ºF)
CCT 55ºC (131ºF)
Magnification at 20X, max. Weight loss 1.0 g/m2
CPT and CCT values according to ASTM G48 method E and method F, respectively.
Test surfaces dry ground to 120mesh. Corrosion results vary with product form and surface finish.

Tensile Properties at Elevated Temperatures

Temperature

0.2% Yield Strength (Average)Ultimate Tensile Strength (Average)
ºCºFMPaksiMPaksi
2068750109950138
6515066096920133
9320064093895130
12125062591870127
14930062589855124
20440056682845123
26050054579825120
31560053577835121
34365052576813118
37170051775807117
39875051074798116