Corrosion-resistant steels - Import export

Stainless steel is an iron alloy, containing a minimum of 10.5% chromium. It is often combined with other alloying elements such as nickel, nitrogen, and molybdenum to create the corrosion-resistant product used in many applications. Hamilton Precision Metals offers a diverse range of 300 and 400 series stainless steels.

17-4 PH®, a wrought compressed stainless steel powder, combines high strength and high hardness with excellent corrosion resistance, fracture toughness and heat treatment properties. When machined, 17-4 PH® produces long, gummy chips. While soft and ductile in an annealed condition, it is capable of high hardness properties with a single precipitation or aging treatment. Applications 17-4 PH® is ideal for manufacturing aircraft fittings, braces, chemical processing components, coupling, fasteners, gas turbines, gears, hydraulic actuators, jet engines, nuclear reactor parts, pump shafts, rocket and missile components, valve stems and wear rings. The physical properties of 17-4 PH® stainless steel make it weldable by common fusion and resistance techniques. Among members of the precipitation hardening class of stainless steels, 17-4 PH® has the best weldability.

Grade 316 is the standard molybdenum-bearing grade, second in overall volume production to 304 amongst the austenitic stainless steels. The molybdenum gives 316 better overall corrosion resistant properties than Grade 304, particularly higher resistance to pitting and crevice corrosion in chloride environments. Grade 316L, the low carbon version of 316 and has very high immunity from sensitization (grain boundary carbide precipitation). It is extensively used in the oil and gas and chemical industries for its cost effective corrosion resistance and ease of fabrication. There is commonly no appreciable price difference between 316 and 316L stainless steel. The austenitic structure also gives these grades excellent toughness, even down to cryogenic temperatures. Compared to chromium-nickel austenitic stainless steels, 316L stainless steel offers higher creep, stress to rupture and tensile strength at elevated temperatures. Please note that we have a minimum order value of £10,000.

Superior Tube Co. supplies above industry standard quality high performance used in the manufacturing of liquid and gas chromatography. High Performance Liquid Chromatography High performance liquid chromatography (HPLC) is used to analyze chemicals in both research and industrial processing. It’s an application that requires precision tubing, which is resistant to high temperatures, pressures and corrosion. For many years, Superior Tube has supplied tubes made from corrosion resistant austenitic, stainless steel and nickel alloys for a range of HPLC equipment. The tubing is used for the manufacturing of the columns in chromatography machines. This application requires exceptional inside diameter condition and overall tube strength to withstand the pressure involved when pumping liquids or gases through the column in order to extract samples for chemical analysis. Please note that we have a minimum order value of £10,000.

Stainless steel powder 434L is a low-carbon ferritic steel powder, in mildly corrosive environments or atmospheric exposures, have corrosion resistance approaching that of some nickel stainless steels. These alloys are oxidation resistant at elevated temperatures. Type 434 stainless steel alloys are ductile and do not work-harden readily. The toughness, defined as resistance to crack propagation or notch strength, of ferritic steels is relatively low, and the ductile-to-brittle transition temperature is at or above room temperature. The corrosion and oxidation resistances of the ferritic steels are directly related to their chromium content. The 17% Cr 434 steel alloys have good corrosion resistance to atmospheric conditions. These alloys are used in a variety of applications where corrosion resistance is more important than strength.

HPM® 455 is a precipitation heat treatable martensitic Stainless Steel. The composition provides a good combination of corrosion resistance and heat treated strength favorable for fatigue applications. The material is well suited for demanding spring devices The alloy has reasonably good forming characteristics in the annealed temper considering that it has a hardness of RC30. A significant radius is useful when bending is necessary in a fabrication. Cold working prior to the precipitation hardening treatment can drive finish strength up to 270,000 PSI (0.2% offset yield strength). The alloy retains a good strength through 800°F (Approx. 70% of room temperature). Resistance to stress – corrosion cracking is optimized by heat treating at 950°F. The overall corrosion resistant to normal atmospheric is equal to SS 430 with no staining. The alloy can be welded by resistance and inert gas shielded techniques. It also is suitable for brazing using a flux when possible.

Stainless steel powder 409L/409CB is a ferritic, weldable grade of stainless steel with key performance features, including high compressibility, enhanced green strength and good sinterability. This stabilized grade provides excellent corrosion resistance and has the capacity to provide high-caliber mechanical properties due to the high temperature sintering response. 409L/409CB’s versatility also results from Cb being less prone to oxidation than Ti. In addition, the oxide is unable to combine with carbon and the Cb forms a stable carbide which prevents coarsening of carbides and grains in the weld’s HAZ. 409L/409CB Stainless steel is a prime candidate for automotive exhaust system applications, among other uses. 409LNI Powder has added nickel for new automotive specifications. Ferritic stainless steel powdered metallurgy (P/M) technology is specified for longer-term performance and reliability. Good atmospheric and saline corrosion

SS 430 is a corrosion and heat resistant ferritic Chromium Steel. It can be polished to appear similar to Chromium plate. The material is magnetic in both annealed and cold rolled tempers. The alloy can be readily blanked and formed. The material can be resistance welded, brazed, and soldered. SS 430 is resistant to atmospheric corrosion and fresh water, but it not resistant to most salts and sea water. It is resistant to scaling by oxidation up to about 1400°F. Available Sizes: SS 430 is available from Hamilton Precision Metals as strip product in thicknesses from 0.001” to 0.050” (0.0254 mm to 1.27 mm) in widths up to 12.0” (304.8 mm). The material conforms to ASTM A240, FED QQS 766, and UNS S43000.

SS 305 is an austenitic Chromium-Nickel stainless steel with excellent corrosion resistance, and is suitable for very severe cold forming operations. A high nickel content reduces the work hardening rate so that it can be formed into electronic components and remain non-magnetic. The alloy is readily formable and work hardens slowly.It has good resistance to nitric and sulfuric acid solutions although it will not resist halogen acids. The alloy can be satisfactorily welded, brazed, and soldered. Available Sizes: SS 305 is available from Hamilton Precision Metals as strip product in thicknesses from 0.0005” to 0.050” (0.0127 mm to 1.27 mm) in widths up to 12.0” (304.8 mm). It is also available in foil as thin as 0.000200” (0.00508 mm) in widths of 4.0” (101.6 mm) maximum. The material conforms to ASTM A240, QQS-766, and UNS S30500.

SS 316L is an austenitic Chromium-Nickel stainless steel with superior corrosion resistance. The low carbon content reduces susceptibility to carbide precipitation during welding. This permits usage in severe corrosive environments such as isolator diaphragms, and metal diaphragms, for both aerospace sensors and burst discs. The alloy can be formed from the annealed temper by stamping and deep drawing. Joining is accomplished by brazing and welding. The Molybdenum is the alloy composition provides excellent strength up through 800° F in applications. Available Sizes: SS 316L is available from Hamilton Precision Metals as strip product from 0.0005” to 0.050” (0.0127 mm to 1.27 mm) in widths up to 12.0” (304.8 mm). It is also available in foil as thin as 0.000200” (0.00508 mm) in widths of 4.0” (101.6 mm) maximum. The material conforms to AMS 5507, ASTM A240, FED QQS766 and UNS S31603.

The 300 Series Powders are austenitic stainless steels typically used for powdered metallurgy (P/M) press and sinter applications to make near net shape parts for a variety of industrial applications. Stainless steel powder 303L is a free machining, austenitic grade that offers moderate corrosion resistance. This stainless steel is sintered in either a partial vacuum or a hydrogren atmosphere to improve ductility and corrosion resistance. 303 Stainless steel powder is a sulfurized grade that is an excellent option for parts that require secondary machining operations, such as food service equipment, pump components and nonmagnetic housings.

S20910 stainless steel provides a combination of good corrosion resistance and strength not found in any other commercial material available in its price range. This austenitic stainless steel has corrosion resistance greater than that provided by types 316 and 316L, plus approximately twice the yield strength at room temperature in the annealed condition. In addition S20910 stainless steel has very good mechanical properties at both elevated and sub-zero temperatures a well as outstanding cryogenic properties. And, unlike many austenitic stainless steels, 22-13-5 stainless steel can be heavily cold worked to enhance its yield strength and remain non-magnetic. Please note that we have a minimum order value of £10,000.

Surgical Implant 316L is a double melted stainless steel, regarded as a medical grade, this stainless steel is melted to achieve high levels of purity and cleanliness. It has excellent resistance to both general and intergranular corrosion, and pitting and crevice corrosion. The double melting allows for superior surface finish. Surgical implant 316L Stainless Steel is our most commonly sold medical stainless steel. Beyond removing impurities, this process, in combination with the unique nickel and chromium content of 316, tends to facilitate the formation of the surface chromium oxide layer that makes stainless steel corrosion resistant. There is some belief that surgical implant 316L forms a more substantial surface layer, and that this plays a strong role in protecting the host body from reactions to the nickel content of the material. Please note that we have a minimum order value of £10,000.

Stainless steel grades cover a wide range of compositions which result in the generation of a variety of microstructures and mechanical properties. This group of alloys is useful for the replacement of mild steel in structures and components. Stainless Steel tubes manufactured by Fine Tubes have an excellent combination of corrosion resistance, metallurgical stability and formabilityStainless steels are favoured because they are very cost effective. They also have an excellent combination of corrosion resistance, metallurgical stability, formability, and are easily welded. Their fabrication characteristics, good mechanical properties and attractive finished appearance make high quality stainless steel tubing a popular choice in a range of industries. Please note that we have a minimum order value of £10,000.

SS 436 is a corrosion and heat resistant ferritic Chromium Steel. It can be polished to appear similar to Chromium plate. The material is magnetic in both annealed and cold rolled tempers. This grade of ferritic stainless steel has shown a greater resistance to ridging or roping defects as compared to type 430 stainless steel. The alloy can be readily blanked and formed. The material can be resistance welded, brazed, and soldered. SS 436 is resistant to atmospheric corrosion and fresh water, but it not resistant to most salts and seawater. It is resistant to scaling by oxidation up to about 1400°F. Available Sizes: SS 436 is available from Hamilton Precision Metals as strip product in thicknesses from 0.001” to 0.050” (0.0254 mm to 1.27 mm) in widths up to 15.0” (381 mm). The material conforms to ASTM A240 and UNS S43600.