Pumps and high-pressure components require BÖHLER steels and alloys with high strength and corrosion resistance. Key quality features include ultra-clean materials, full traceability, controlled heat treatment, and rigorous testing for reliable oil & gas and CPI performance.
Pumps and high-pressure components in the oil & gas and Chemical Process Industry (CPI) are exposed to extreme operating conditions, including very high pressures, temperature variations, and aggressive media such as sour gases, hydrocarbons, and chemical process fluids. These demanding environments require materials with outstanding mechanical strength, excellent corrosion resistance, and resistance to stress corrosion cracking and hydrogen embrittlement. In addition, components must provide high fatigue resistance, dimensional stability, and reliable sealing performance over long service intervals under cyclic loading and pressure fluctuations.
BÖHLER high-performance steels and alloys are specifically engineered to meet these challenges. Advanced quenched and tempered steels, stainless steels (austenitic, duplex, and precipitation-hardened), and high-alloy nickel-based materials offer an optimized balance of strength, toughness, and resistance to corrosive and high-pressure environments. Produced using advanced melting and refining technologies, BÖHLER materials ensure exceptional cleanliness, low inclusion content, and homogeneous microstructures, significantly improving fatigue life and operational reliability. Key quality features include strict control of chemical composition, certified traceability, and precisely controlled heat treatment processes. Comprehensive testing, including pressure resistance, corrosion evaluation, and non-destructive inspection, ensures compliance with stringent oil & gas and CPI standards. BÖHLER materials enable safe, efficient, and long-lasting pump and high-pressure component solutions.
BÖHLER A903 (UNS S32205) is the most common stainless ferritic-austenitic Cr-Ni-Mo steel with nitrogen addition. In addition to good strength properties, this steel offers high corrosion resistance, especially against stress corrosion cracking in chloride-containing solutions, and is resistant to intergranular corrosion up to 300°C. The alloy should not be used at temperatures above 300°C due to embrittlement. Heat treatment after welding is not necessary. Required surface finish: pickled, scale-free heat treated or machined. Commonly used in the oil and gas industry, hydroelectric power, pressure vessels, pulp and paper industry, components and chemical tanks, such as parts for separators and heat exchangers and parts in the paper industry, oil and gas extraction , compressors, seawater desalination.
Read MoreBÖHLER A911SA is a ferritic-austenitic stainless steel of Type 25%Cr with PREN of min. 40. It offers excellent corrosion resistance against general corrosion, stress corrosion cracking, corrosion fatigue, pitting, crevice and erosion corrosion and possessing very high mechanical strength properties. However, it contains less copper compared to other super Duplex SS but a deliberate addition of tungsten instead, claimed to selectively improve corrosion resistance. Good weldability, post weld heat treatment not necessary. Max. temperature for long periods of service: 280°C (535°F ) / (300°C/570°F possible for short periods). Surface condition for optimum corrosion resistance: pickled or machined. Components in offshore, waste water, sea water desalination and chemical plants with aggressive chloride-containing media e.g. heat exchangers, separator parts, compressor and pump components, turbine blades.
Read MoreBÖHLER N685 is a corrosion-resistant steel with molybdenium and vanadium additions in the form of bars, wire, forgings, and forging stock. These products have been used typically for parts in engineering and medical applications requiring hardness up to 58 HRC and resistance to wear, corrosion, and oxidation, but usage is not limited to such applications.
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