Wellheads, X-mas trees, and BOPs require BÖHLER steels with high strength and corrosion resistance. Key quality features include ultra-clean materials, full traceability, controlled heat treatment, and rigorous testing for safe operation.
Wellhead systems, Christmas trees, manifolds (including tubing hangers), and blowout preventers (BOPs) are among the most critical safety components in oil and gas operations. These systems operate under extreme pressures, temperature variations, and highly corrosive environments containing H₂S, CO₂, brines, and hydrocarbons. Material requirements are therefore exceptionally stringent, focusing on high strength, fracture toughness, resistance to stress corrosion cracking, and immunity to hydrogen embrittlement. In addition, reliable sealing performance and dimensional stability under cyclic loading are essential to ensure safe well control and prevent catastrophic failures.
BÖHLER high-performance steels and alloys are specifically engineered to meet these demanding and safety-critical requirements. Advanced quenched and tempered steels, corrosion-resistant alloys (CRA), and precipitation-hardened stainless steels provide optimized combinations of strength, toughness, and resistance to aggressive media. Produced using advanced melting and refining technologies, BÖHLER materials ensure exceptional cleanliness, low inclusion content, and homogeneous microstructures, significantly enhancing fatigue resistance and reliability. Key quality features include strict control of chemical composition, certified traceability, and precisely controlled heat treatment processes tailored to meet industry standards such as API requirements. Comprehensive testing, including fracture toughness, corrosion resistance, and non-destructive inspection, ensures consistent performance. BÖHLER materials enable safe, durable, and reliable operation of wellhead and pressure control systems.
BÖHLER L625 is a non-magnetizable corrosion and heat resistant nickel alloy in the form of bars, forgings and semi-finished products up to max 254 mm diameter/ cross-section and oxidation resistant up to 1093°C. Best fatigue strength and resistance to stress corrosion cracking when exposed to chloride containing media. Good weldability.
Read MoreBÖHLERL718 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.
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