Filling system components require BÖHLER stainless steels with high corrosion resistance, hygiene performance, and wear resistance. Key quality features include ultra-clean materials, full traceability, controlled heat treatment, and verified surface quality for safe food processing.
Filling operations in food and beverage processing demand the highest levels of precision, hygiene, and operational reliability. Components such as filling valves, nozzles, pumps, pistons, guides, and flow control elements are exposed to continuous contact with beverages, cleaning agents, sterilization media, and frequent production cycles. Material requirements therefore focus on excellent corrosion resistance, high wear resistance, smooth and cleanable surfaces, and dimensional stability. Resistance to pitting, stress corrosion cracking, and chemical attack is essential to ensure product safety, prevent contamination, and maintain process efficiency over long service intervals.
BÖHLER high-performance steels and alloys are specifically engineered to meet these demanding requirements. Advanced stainless steels, including austenitic, martensitic, and precipitation-hardened grades, provide an optimized combination of corrosion resistance, strength, toughness, and surface finish quality. Produced using advanced melting and refining technologies, BÖHLER materials ensure superior cleanliness, low inclusion content, and homogeneous microstructures, supporting reliable operation and extended component life. Key quality features include strict control of chemical composition, certified traceability, validated heat treatment processes, and excellent polishability. Comprehensive testing, including corrosion resistance evaluation, surface integrity verification, and non-destructive inspection, ensures compliance with food industry standards. BÖHLER materials enable hygienic, efficient, and reliable filling systems with maximum productivity and product quality.
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 MoreUddeholm Corrax is a precipitation hardening steel with a unique set of properties that makes it perfect for many demanding applications. The superior resistance against corrosion combined with a hardness up to 50 HRC and a simple heat treatment makes Uddeholm Corrax the obvious choice for long run series of aggressive plastics such as PVC. The chemical composition makes Uddeholm Corrax easy to process by Additive Manufacturing. Hence, it is also available as powder for Laser Powder Bed Fusion (LPBF) and Laser Metal Deposition (LMD). Benefits Very good corrosion resistance Flexible hardness of 34-50 HRC achieved by ageing No hard “white layer” after EDM
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