304 stainless steel is the most common stainless steel alloy and is known for its pristine surface finish. It has significantly higher corrosion and oxidation resistance than carbon steels. 304 is formable, weldable and ideal for use in corrosive environments. Typical applications include railroad and industrial equipment, transport containers, household appliances, cutlery, and hand tools. density of stainless steel astm 304 kg m3

305 stainless steel Has the highest formability of all austenitic stainless steels making it ideal for applications such as barrels and shells. 305 is best suited for cold working processes such as drawing, spinning and blanking, although it can be hot worked by forging and heading. It's not heat treatable, but can be welded.305 is used in products including drawn housings, rivets, tank covers, kitchen utensils, and writing instruments.

309 stainless steel Ideal for high-temperature applications up to 1900°F.It is stronger than 304 and has higher corrosion resistance. 309can be cold worked but is not heat treatable. It is weldable and relatively easy to machine. This alloy is often used in furnaces, thermowells, power boiler tube hangers, generators, paper mills, petroleum refining, brazing fixtures, anchor bolts, refractory supports, and oven linings.

310 stainless steel- Maintains its strength and corrosion resistance up to 2100°F and can also be used at cryogenic temperatures reaching as low as-450°. It has superior corrosion resistance compared to 309 can be welded and cold worked, but cannot be heat treated. Common applications include oil burners, heat exchangers,combustion tubes and chambers, radiant tubes, kilns, and conveyor belt rollers.

Nearly identical to 310 but contains more silicon to provide increased heat resistance. Common applications include furnaces, oil burners, heat exchangers, combustion tubes and chambers, firebox sheets, flare tips, welding rods,filler wires, annealing covers, fluidized bed coal combustors, radiant tubes, tube hangers, coal gasifier components, and kilns.

317 stainless steel - Often used in highly corrosive environments. This alloy is weldable, easily machined, and can be cold and hot worked, but it cannot be heat treated. 317 is ideal for making generators, absorber towers, boilers, condenser tubes, heat exchangers, pipes, pressure vessels, stack liners, fittings, and valves.

321 stainless steel -Ideal for use in temperatures reaching up to 1500°F. It is minimally prone to creep and rupture, and highly resistant to scaling and vibration fatigue.321is often used to make aircraft exhaust stacks and manifolds, jet engine parts, boiler shells, cabin heaters, pressure vessels, flexible coupling, expansion joints, and wire cloth.

347 stainless steel - Nearly identical to 321 but offers higher resistance to intergranular corrosion.347 is often used to make aircraft exhaust stacks and manifolds, jet engine parts, chemical processing equipment, boiler shells, cabin heaters, pressure vessels, flexible coupling, expansion joints, and wire cloth.

properties of 348 Stainless Steel - Nearly identical to 347 but contains more cobalt.348 is oftenused to make aircraft exhaust stacks and manifolds, jet engine parts, chemical processing equipment, boiler shells, cabin heaters, pressure vessels, flexible coupling, expansion joints, and wire cloth.

405 stainless steel -Ideal for welding applications. It is highly formable and easily machined.Typical applications include annealing boxes, steam nozzles, quenching racks, partitions and parts that can't be annealed after welding.

409 stainless steel - Maintains excellent corrosion resistance at high temperatures. This alloy is weldable, easily machined, and can be cold and hot worked, but cannot be heat treated.409 is ideal for agricultural spreaders, exhaust pipes, catalytic converters, mufflers, automotive thermostats, structural support and hangers, and shipping containers.

410 stainless steel - Contains a minimum of 11.5% chromium, making it exceptionally resistant to corrosion from many chemicals and acids. This alloy is weldable, easily machined, heat treatable and can be cold and hot worked.Applications include nuts and bolts, press plates, valves, cutlery, surgical instruments, and petroleum refining equipment.

414 stainless steel - Nearly identical to 410 but contains nickel which increases corrosion resistance. Applications include bolts and nuts, press plates, valve components, cutlery, surgical instruments, and petroleum refining equipment.

430 stainless steel - Highly formable and has exceptional resistance to acids and stress corrosion cracking. This alloy is often used in home appliances, cutlery, fasteners, and automotive trim.

431 stainless steel - Has the highest corrosion resistance of all hardenable martensitic stainless steels. It can be hot or cold worked, and hardened up to 40 HRC. Typical applications include valves, pumps, aircraft components, propeller shafts, and marine equipment.

434 stainless steel - Nearly identical to 430 but contains more molybdenum which provides better heat and corrosion resistance. It is formable, weldable and easily machined. 434 is ideal for automotive trim and molding, furnace combustion chambers, gas burners, dishwashers, range hoods, steam iron bases, flatware, and gutters.

436 stainless steel - Nearly identical to 434 but contains more molybdenum and titanium which allows for higher pitting corrosion resistance.436 is used for furnace combustion chambers, gas burners, dishwashers, range hoods, steam iron bases, flatware, and gutters.

442 stainless steel - Has exceptionally high corrosion resistance due to high levels of chromium. It has excellent heat resistance but cannot be heat treated and is dificult to machine. Applications include furnace and combustion components, zinc die casting machines, nitrogen fixation parts, storage tanks for nitric acid, and decorative trim.

446 stainless steel - ldeal for high-temperature applications due to excellent resistance to hot corrosion and oxidation. It is weldable, easily machined, but cannot be heat treated and is difficult to cold work. Applications include boiler baffles, thermocouple protectors, neutral salt pot electrodes, waste heat boilers, X-ray tube bases, oil burners, and incinerators.

UNS S31803 stainless steel - Has excellent corrosion resistance but is not suitable for temperatures exceeding 500°F. This alloy is weldable, easily machined, and can be both cold formed and hot formed. S31803 is the most common duplex steel. Typical applications include pumps, valves, chokes, flanges, bolts, connectors, manifolds, generators, augers, fasteners, instrumentation tubes, press rolls, and screw conveyors.

UNS S32003 stainless steel - This nitrogen enhanced duplex steel is known for high strength.This alloy is easily formed and machined. UNS S32003 is oftenused in subsea oil and gas fields.

UNS S32101 stainless steel - This duplex stainless steel is stronger than 304 and and has better corrosion resistance. Typical applications include biodiesel plants and tanks, chemical process, bridges, flood gates, white liquor storage tanks, washers, desalination system chambers, and wastewater treatment plants.

UNS S32304 stainless steel - Nearly identical to 304 and 316 but offers much higher high yield strength. This alloy is weldable, easily machined, and can be both cold and hot worked. UNS S32304 is ideal for use in storage tanks and pressure vessels.

UNS S32205 stainless steel - Nearly identical to UNS S31803 but has more nitrogen to increase corrosion resistance. Typical applications include pumps, valves, chokes, pipeworks, flanges, bolting, connectors, manifolds, oil and gas industry equipment, power generators, cargo tanks, couplings, fasteners, instrumentation tubes, press rolls, and screw conveyors.

UNS S32760 stainless steel - This super duplex steel is weldable and easily machined. UNS S32760 has significantly higher strength and corrosion resistance than UNS S32205 Typical applications include marine equipment, mining tools, and pharmaceutical products.

UNS S32550 stainless steel - This super duplex steel is known for high corrosion resistance and impressive strength. Typical applications include valve bodies, marine equipment, pumps, and shafts.

UNS S32707 stainless steel - This hyper duplex steel is weldable and is often used in high-chloride environments. UNS S32707 has higher corrosion resistance and higher strength than UNS S32750. Typical applications include marine equipment, petroleum equipment, and heat exchangers.

UNS S32550 stainless steel - This super duplex steel is known for high corrosion resistance and impressive strength. Typical applications include valve bodies, marine equipment, pumps, and shafts.

UNS S32707 stainless steel - This hyper duplex steel is weldable and is often used in high-chloride environments. UNS S32707 has higher corrosion resistance and higher strength than UNS S32750. Typical applications include marine equipment, petroleum equipment, and heat exchangers.

UNS S33207 stainless steel - This hyper duplex steel is known for excellent resistance to stress corrosion cracking and exceptionally high

mechanical strength.UNS S33207 is often used to make oil and gas exploration equipment.

304 Stainless Steel Castings
304 stainless steel is the most common grade of stainless steel castings, largely due to its excellent corrosion resistance and value. It contains between 16 and 24 percent chromium and up to 35 percent nickel, as well as small amounts of carbon and manganese.

The most common form of 304 stainless steel is 18-8 stainless steel or 18/8 stainless steel, which contains 18 percent chromium and 8 percent nickel.

304 stainless steel has great advantages for casting: it is susceptible to corrosion from chloride solutions, or from saline environments like the coast. Chloride ions can create localized areas of corrosion, called “pitting,” which can spread beneath protective chromium barriers to compromise internal structures. Solutions with as little as 25 ppm of sodium chloride can begin to have a corrosive effect.

304 stainless steel casting in Artisan Industry foundry has the price advantage and good anti-rust property due to its material. The 304 is a steel number for wrought steel, Cast 304 is equivalent to CF8 of the US, or 1.4308 of Germany. 304 can withstand corrosion from most oxidizing acids. That durability makes 304 easy to sanitize, and therefore ideal for manufacturing of food processor, household appliances, lockset, kitchen and sanitary ware, door and window, medical apparatus, architectural ornament, etc. For your information, the 304 stainless steel casting after polishing has a brilliant appearance and decorative effect.

As the 304 stainless steel castings manufacturer and supplier in China, Artisan Industry foundry offers a broad range of custom services including precision machining for 304 stainless steel castings. We can make 304 stainless steel casting with close tolerances using solical sol investment casting process. Of course, we can also produce such stainless steel casting in other grades, such as 316 stainless steel casting, PH17-4 stainless steel casting, and more.

• Sizes: 0.1 in to 24 in
• Weights: a few grams to more than 50 pounds
• Surface: very smooth finish
• Tight tolerances
• Reliable process controls and repeatability
• Design and casting versatility
• Efficient production
• Affordable tooling
• Material variety

Investment casting has significantly cheaper tooling and is a more cost-effective option for lower quantity production runs. Additional benefits include a larger alloy selection and the ability to cast larger pieces.

Investment casting provides a better surface finish and allows for greater design flexibility including the ability to cast thinner walls, create tighter tolerances and create more intricate coring.

Stainless Steel Investment casting can significantly reduce the cost and lower the production time per piece. This is accomplished by producing near net shape parts, while greatly reducing the amount of material waste. In some instances, multiple fabricated parts can be produced as a single casting.