330 stainless steel, also known as Alloy 330 or UNS N08330, is an austenitic nickel-iron-chromium alloy designed for exceptional strength and oxidation resistance at elevated temperatures. With its balanced composition of chromium and nickel, along with silicon to enhance oxidation resistance, 330 stainless offers outstanding stability against carburization, thermal shock, and scaling up to 2000°F (1095°C). It maintains structural integrity under both cyclic heating and continuous high-temperature service, making it an ideal material for harsh thermal environments. Industries that commonly use 330 stainless include heat treating, petrochemical, power generation, and furnace manufacturing. In the heat-treating industry, it is widely applied in conveyor systems, muffles, baskets, and retorts that require durability under repeated heating cycles. The petrochemical and refining sectors use it in reformer tubes, furnace parts, and catalytic cracking equipment exposed to oxidizing and carburizing atmospheres. Power plants employ it in boiler components and superheater tubing, while furnace builders rely on its long service life for linings and hardware. Fasteners manufactured from 330 stainless—such as bolts, nuts, screws, studs, and washers—are essential in securing equipment subjected to high heat and corrosive gases. These fasteners provide excellent creep strength, oxidation resistance, and stability, ensuring reliable performance in demanding thermal and industrial applications.
904 stainless steel, also known as Alloy 904L or UNS N08904, is a high-alloy austenitic stainless steel developed for superior corrosion resistance in highly aggressive environments. With high levels of chromium, nickel, molybdenum, and copper, it provides excellent resistance to strong reducing acids such as sulfuric, phosphoric, and acetic acids, as well as to chloride-induced pitting and stress-corrosion cracking. Unlike standard stainless steels, 904L maintains excellent toughness and weldability while offering enhanced durability in both oxidizing and reducing conditions. Industries that rely on 904 stainless include chemical processing, marine, oil and gas, pharmaceutical, and pollution control. In chemical plants, it is used for tanks, heat exchangers, piping, and reactors handling corrosive acids. The marine and offshore industries utilize it for seawater cooling systems, desalination equipment, and structural hardware exposed to saltwater environments. In oil and gas, it is applied in refining equipment, pipelines, and offshore platforms where resistance to chloride stress cracking is essential. Pharmaceutical and pollution control sectors also employ 904 stainless for clean process systems and scrubbers. Fasteners manufactured from 904 stainless—such as bolts, screws, nuts, studs, and washers—are critical in ensuring structural integrity in these demanding conditions. These fasteners provide long-term reliability, combining strength with superior corrosion resistance for critical assemblies.
AL6XN® is a super austenitic stainless steel alloy engineered to deliver exceptional corrosion resistance and mechanical performance in aggressive environments. Its high chromium, molybdenum, and nitrogen content make it highly resistant to pitting, crevice corrosion, and stress corrosion cracking, even in chloride-rich or acidic conditions where conventional stainless steels such as 304 or 316L would fail. This alloy is widely used across industries that demand both durability and chemical resistance, including marine, chemical processing, food and beverage, pulp and paper, pharmaceutical, and desalination. In marine and offshore applications, AL6XN® is chosen for seawater piping, desalination plant components, and heat exchangers exposed to saltwater service. In chemical and food processing plants, it is valued for tanks, piping, pumps, evaporators, and pressure vessels that must handle strong acids, alkalis, or brine solutions while maintaining product purity. The pharmaceutical and biotech sectors also adopt AL6XN® for hygienic equipment requiring both corrosion resistance and cleanliness. Beyond large-scale equipment, AL6XN® is also manufactured into critical fasteners such as bolts, nuts, washers, screws, and studs, which are used in pumps, valves, pressure vessels, and structural assemblies. These fasteners provide long-term reliability in harsh service environments, reducing maintenance and downtime while outperforming common stainless steels.
A286 is an iron-nickel-chromium austenitic stainless steel alloy strengthened with additions of molybdenum, titanium, and vanadium, making it notable for both high strength and excellent oxidation resistance at elevated temperatures. Unlike many stainless steels, A286 maintains useful mechanical properties and corrosion resistance in service environments reaching up to 1300°F (700°C), making it especially suitable for high-temperature, high-stress conditions. Because of this unique combination of strength, toughness, and thermal stability, A286 finds extensive use across several industries. In the aerospace sector, it is widely employed in jet engines, gas turbines, afterburner components, and fasteners exposed to high heat and cyclic stress. The automotive and power generation industries also utilize A286 for turbocharger components, exhaust systems, and turbine parts where both heat resistance and mechanical reliability are essential. In the oil and gas industry, it is chosen for downhole tools, wellhead equipment, and components that must endure extreme environments while resisting oxidation and scaling. Beyond structural parts, A286 is frequently produced in the form of fasteners, including bolts, screws, nuts, studs, and washers, which are critical in aerospace engines, turbine housings, and pressure vessels. These fasteners deliver long-term reliability where conventional stainless steels would lose strength, ensuring safe and durable performance.
Carpenter® 20, also known as Alloy 20 or UNS N08020, is a highly corrosion-resistant austenitic nickel-iron-chromium stainless alloy designed primarily for use in sulfuric acid service while also performing exceptionally well in a wide range of aggressive chemical environments. With its balanced composition of nickel, chromium, molybdenum, and copper, Carpenter 20 offers outstanding resistance to pitting, crevice corrosion, and chloride stress corrosion cracking, making it more durable than standard stainless steels such as 304 or 316 in chemical processing environments. This alloy is widely utilized across industries that demand both mechanical reliability and superior corrosion resistance. In the chemical and petrochemical industries, Carpenter 20 is applied in reactors, heat exchangers, tanks, piping systems, and pumps handling sulfuric, phosphoric, and nitric acids as well as chlorides. The pharmaceutical and food processing sectors also use this alloy due to its ability to maintain hygienic performance in corrosive service. Additional applications extend into marine and power generation environments where chloride resistance is essential. Beyond heavy equipment, Carpenter® 20 is commonly fabricated into fasteners including bolts, screws, nuts, studs, and washers, which are vital in pressure vessels, piping systems, valves, and structural assemblies. These fasteners provide long-term service life, reduce maintenance costs, and ensure safe operation in corrosive industrial conditions.
SMO 254®, also known as 6Mo stainless steel, is a high-alloy austenitic stainless steel developed for exceptional corrosion resistance in aggressive environments, particularly those containing chlorides and halides. Its high levels of molybdenum, nitrogen, and chromium provide outstanding resistance to pitting, crevice corrosion, and stress-corrosion cracking, even in warm seawater and acidic conditions. This makes SMO 254® a cost-effective alternative to more expensive nickel-based alloys in many applications. Industries that depend on SMO 254 include chemical processing, offshore oil and gas, marine, desalination, and pulp and paper. In chemical plants, it is used for heat exchangers, tanks, and piping systems handling strong acids such as sulfuric and hydrochloric. Offshore and marine sectors rely on it for seawater handling equipment, risers, and desalination plant components due to its durability in chloride-rich environments. The pulp and paper industry also benefits from its resistance to bleaching chemicals and acidic solutions. Fasteners made from SMO 254®—such as bolts, nuts, screws, washers, and studs—are essential in maintaining secure assemblies exposed to highly corrosive conditions. These fasteners combine high mechanical strength with superior corrosion resistance, ensuring reliability and long service life. With its unique balance of strength and corrosion resistance, SMO 254® remains a trusted material for critical fastening and structural applications in demanding industries.
