Umbilical tubes

Sandvik is a market leader in stainless steel umbilical tubing and has supplied more than 100 million meters (320 million feet) of umbilical tubes to all major fabricators and oil companies over the last 20 years. Our umbilical tubes are used in all offshore regions.

Coiled tubing for cost-effective umbilical manufacturing

Sandvik offers orbital-welded coiled tubing for cost-effective umbilical manufacturing. Our umbilical tubes are also offered in straight lengths, as long as 40 meters (131 feet), for a minimum requirement of orbital welds.

Umbilical tube materials

Sandvik SAF 2507 (UNS S32750)
A super-duplex stainless steel that combines high corrosion resistance and high mechanical strength. With excellent resistance to seawater and marine environments, it is particularly well-suited for applications exposed to high stress in aggressive chloride-rich environments. The resistance to sour environments is superior to Sandvik SAF 2205 (UNS S31803/S32205). PRE value min. 42.5 (valid for tube and pipe).
Read more about Sandvik SAF 2507
Sandvik SAF 3207 HD (UNS 33207)
A hyper-duplex stainless steel developed for deepwater umbilicals. It is designed for the most extreme conditions in terms of depth, temperature and pressure. Sandvik SAF 3207 HD offers greater yield strength, greater corrosion resistance and superior fatigue properties compared to super-duplex stainless steels. PRE value min. 50 (valid for tube and pipe).
Read more about Sandvik SAF 3207 HD

Size range

Coiled and straight tubes
Inner diameterWall thickness (mm)
in.mmminmax
3/8 9.53 1.2 2
1/2 12.70 1 2.6
5/8 15.88 1 3
3/4 19.05 1.1 4
1 25.40 1.3 5
31.75 1.5 5
38.10 2
44.45 2.5 5.5 1)
2
50.80 2.7 6 1)

1) Specific NDT acceptance criteria are applied for these dimensions

Straight tubes only

Inner diameterWall thickness (mm)
in.mmminmax
1¾ 44.45 2.50 8.00
2 50.80 2.80 8.00
57.15 3.20 9.00
63.50 3.50 8.00
69.85 4.00 8.00
3 76.20 4.30 10.00
82.55 4.60 8.00
88.90 4.90 12.00
3¾ 95.25 5.30 9.00
4 101.60 5.50 14.00
4½ 114.30 6.30 16.00
5 127.00 7.00  18.00

Duplex stainless steels

Sandvik's range of duplex stainless steels is the widest on the market. The range includes super-duplex and hyper-duplex stainless steels.
Read more about duplex stainless steels