Grade 430 is a ferritic, straight chromium, non-hardenable grade, combining good corrosion resistance and formability characteristics with useful mechanical properties. Its ability to resist nitric acid attack permits its use in specific chemical applications but automotive trim and appliance components represents its largest fields of application.
Grade 430F is the free-machining version of this grade, available in bar form for use in automatic screw machines. Grade 434 is the molybdenum bearing version of Grade 430 and has the same useful combination of properties. Its molybdenum addition improves corrosion resistance.
These properties for 430 are specified for flat rolled product (plate, sheet and coil) in ASTM A240/A240M. Similar but not necessarily identical properties are specified for other products such as forgings and bar in their respective specifications. Properties of Grade 430F are specified for bar in ASTM A582.
Grade 430 has good resistance to a wide variety of corrosive enviornments, including nitric acid and some organic acids. It attains its maximum corrosion resistance when in the highly polished or buffed condition. In general its resistance to pitting and crevice corrosion resistance is close to that of grade 304. Stress corrosion cracking resistance of Grade 430 is very high, as it is for all ferritic grades.
Like other high-sulphur free machining grades 430F has much reduced resistance to pitting and crevice corrosion compared to its non-free machining equivalent.
In the table below are a list of possible alternative grades to Grade 430.
Description: Valve related cnc products and vmc components
Material: Stainless steel 202, 304/304L, 316/316L, 304H, 316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410, Duplex 2205 and 2507. Nickel Alloy such as alloy 200/201, C276, C22, Alloy 400, Alloy 600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and Titanium Grade 1, Grade 2, Grade 5 and all other grades in Copper alloys.
Size: As per Diagram and requirement
Finish: As per requirement
Process: CNC swiss, CNC turning, VMC machining, Milling and Grinding. |
Description: Spool CNC components
Material: Stainless steel 202, 304/304L, 316/316L, 304H, 316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410, Duplex 2205 and 2507. Nickel Alloy such as alloy 200/201, C276, C22, Alloy 400, Alloy 600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and Titanium Grade 1, Grade 2, Grade 5 and all other grades in Copper alloys.
Size: As per Diagram and requirement
Finish: As per requirement
Process: CNC swiss, CNC turning, VMC machining, Milling and Grinding. |
Description: Medical Implants, Bone screw, pedicle screws, pins, plates and other implants
Material: Stainless steel 202, 304/304L, 316/316L, 304H, 316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410, Duplex 2205 and 2507. Nickel Alloy such as alloy 200/201, C276, C22, Alloy 400, Alloy 600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and Titanium Grade 1, Grade 2, Grade 5 and all other grades in Copper alloys.
Size: As per client’s requirements
Finish: As per clients requirements
Process: CNC swiss, CNC turning, VMC machining, Milling and Grinding. |
Description: Plugs and Exotic Fasteners with unique designs and sizes
Material: Stainless steel 202, 304/304L, 316/316L, 304H, 316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410, Duplex 2205 and 2507. Nickel Alloy such as alloy 200/201, C276, C22, Alloy 400, Alloy 600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and Titanium Grade 1, Grade 2, Grade 5 and all other grades in Copper alloys.
Size: As per client’s requirements
Finish: As per clients requirements and all types of coating available
Process: CNC swiss, CNC turning, VMC machining, Milling and Grinding. |
Description: Shaft and pins
Material: Stainless steel 202, 304/304L, 316/316L, 304H, 316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410, Duplex 2205 and 2507. Nickel Alloy such as alloy 200/201, C276, C22, Alloy 400, Alloy 600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and Titanium Grade 1, Grade 2, Grade 5 and all other grades in Copper alloys.
Size: As per client’s requirements
Finish: As per clients requirements
Process: CNC swiss, CNC turning, VMC machining, Milling and Grinding. |
Description: Precision CNC and VMC sheet metal components, Top Rollers, Spray nozzles, Instrumentation fittings as per drawings
Material: Stainless steel 202, 304/304L, 316/316L, 304H, 316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410, Duplex 2205 and 2507. Nickel Alloy such as alloy 200/201, C276, C22, Alloy 400, Alloy 600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and Titanium Grade 1, Grade 2, Grade 5 and all other grades in Copper alloys.
Size: As per client’s requirements
Finish: As per clients requirements
Process: CNC swiss, CNC turning, VMC machining, Milling and Grinding. |
Description: Aerospace parts such as adapters, flanges, knobs, couplings, fittings, ferrules, brackets, clamps, connectors, hoses, Elbows, Tees, shafts, Nipples, Hex plugs etc
Material: Stainless steel 202, 304/304L, 316/316L, 304H, 316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410, Duplex 2205 and 2507. Nickel Alloy such as alloy 200/201, C276, C22, Alloy 400, Alloy 600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and Titanium Grade 1, Grade 2, Grade 5 and all other grades in Copper alloys.
Size: As per client’s drawings and requirements
Finish: As per clients drawings and requirements
Process: CNC swiss, CNC turning, VMC machining, Milling and Grinding. |
Description: Industrial Precision CNC and VMC components for motorsports, automotives, bicycle components, energy and power, oil and gas equipments etc.
Material: Stainless steel 202, 304/304L, 316/316L, 304H, 316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410, Duplex 2205 and 2507. Nickel Alloy such as alloy 200/201, C276, C22, Alloy 400, Alloy 600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and Titanium Grade 1, Grade 2, Grade 5 and all other grades in Copper alloys.
Size: As per client’s drawings and requirements
Finish: As per clients drawings and requirements
Process: CNC swiss, CNC turning, VMC machining, Milling and Grinding. |