Heat exchangers require BÖHLER steels and alloys with excellent corrosion and temperature resistance. Key quality features include ultra-clean materials, full traceability, controlled heat treatment, and rigorous testing for reliable CPI and oil & gas performance.
Heat exchangers in the oil & gas and Chemical Process Industry (CPI) operate under highly demanding conditions, including elevated temperatures, high pressures, and exposure to aggressive media such as hydrocarbons, acids, chlorides, and sour gases. Reliable heat transfer performance must be maintained over long service periods while resisting corrosion, fouling, and thermal fatigue. Material requirements therefore focus on excellent corrosion resistance, resistance to stress corrosion cracking, high-temperature strength, and long-term microstructural stability. In addition, good weldability and dimensional stability are essential for fabrication and operational safety.
BÖHLER high-performance steels and alloys are specifically engineered to meet these critical requirements. Advanced austenitic, duplex, and precipitation-hardened stainless steels, as well as highly alloyed and nickel-based grades, provide optimized resistance to chemical attack and thermal degradation. Produced using advanced melting and refining technologies, BÖHLER materials offer superior cleanliness, low inclusion levels, and homogeneous microstructures, ensuring reliable performance and extended component life. Key quality features include precise chemical composition control, certified traceability, and validated heat treatment processes. Comprehensive testing, including corrosion evaluation, pressure performance, and non-destructive inspection, ensures compliance with stringent industry standards. BÖHLER materials enable efficient, safe, and durable heat exchanger solutions.
BÖHLERL718 API (UNS N07718) is a high-strength, corrosion-resistant nickel-chromium-iron-molybdenum material with excellent corrosion resistance, especially in H2S and CO2 environments. The alloy is age-hardenable due to the addition of niobium, titanium and aluminium. BÖHLER L718 API is recognised by the oil industry for its simple and cost-effective production in combination with good tensile, fatigue, creep and fracture strength and is used in a wide range of applications in this sector. BÖHLER L718 API has excellent weldability and is resistant to cracking after welding. The material can be used at high temperatures. BÖHLER L718 API is available in the NACE/API 6A CRA versions with a minimum yield strength of 120/140 ksi and also in the high-strength version with 150 ksi. All hardness grades are suitable for sour service and can be used for pressurising and pressure-controlling equipment in corrosive environments. Typical applications include packers, pumps, connectors and fasteners as well as gate valves, throttle spindles, pipework hangers and fire safe valves, but also a wide range of downhole and completion components, nuclear and surface applications.
Read MoreFields marked with * are mandatory.