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Tube, pipe, fittings and flanges
SAF 2507™ LHP for laying head pipe is a high alloy super-duplex stainless steel.
SAF™2507 LHP has a coefficient of thermal expansion close to that of carbon steel. This gives SAF™ 2507 LHP definite design advantages over austenitic stainless steels in equipment comprising both carbon steel and stainless steel. The values given below are average values in the temperature ranges.
Temperature, °C | 30-100 | 30-200 | 30-300 | 30-400 |
SAF™ 2507 LHP | 13.5 | 14.0 | 14.0 | 14.5 |
Carbon steel | 12.5 | 13.0 | 13.5 | 14.0 |
ASTM 316L | 16.5 | 17.0 | 17.5 | 18.0 |
Figure 1. Thermal expansion comparison between grades.
Figure 2. Forced productivity, sub-optimization.