TEDDI STEEL
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430F Stainless Steel is a free-machining version of the standard 430 Stainless Steel. It is primarily composed of Chromium with targeted additions of Manganese, Silicon, Carbon, Phosphorus, Sulfur, and Molybdenum to enhance performance.
This grade is specifically optimized for use in automatic screw machines and is widely recognized for its "solenoid quality," meeting a broad range of industrial specifications. It is most commonly supplied in bar form for precision machining applications.
| Country | Japan | Germany | USA | China |
|---|---|---|---|---|
| Standard | JIS | DIN | ASTM | GB/T |
| Grade | SUS 430F | X14CrMoS17 / 1.4104 | 430F | Y10Cr17 |
| Grade | C≤ | Si≤ | Mn≤ | P≤ | S≤ | Cr | Mo |
|---|---|---|---|---|---|---|---|
| 430F | 0.12 | 1.0 | 1.0 | 0.040 | 0.030 | 16.0-18.0 | / |
| 1.4104 | 0.10-0.17 | 1.0 | 1.5 | 0.04 | 0.15-0.35 | 15.5-17.5 | 0.2-0.6 |
| Size Ranges | Round Bar | Dia 0.1 - 500mm |
| Plate / Flat | Thickness: 0.3mm - 200mm | |
| Width | 1mm - 2500mm | |
| Heat Treatment | Annealed; Solid Solution | |
| Surface Condition | Black, Peeled, Polished, Machined, Sand Blasted | |
| Applications | Automatic screw machines, aircraft fasteners, gears, shafts, and pinions. | |
Professional smelting and forging capabilities include ultra-high power electric arc furnaces, LF refining furnaces, and vacuum degassing units. Forging equipment includes electro-hydraulic hammers and high-speed forging units ranging from 800t to 4500t, ensuring high-quality output for automotive, aerospace, and industrial sectors.
The "F" in 430F stands for "Free-machining." Thanks to higher sulfur content, 430F offers significantly better machinability, making it ideal for high-speed production in automatic screw machines compared to standard 430.
Yes, 430F is a ferritic stainless steel, which means it is magnetic in all conditions (annealed or cold worked).
It is widely used for solenoid valves, aircraft parts, gears, fasteners, shafts, and pinions where precision machining is required alongside moderate corrosion resistance.
No, 430F is a ferritic grade and cannot be hardened by heat treatment. It is usually used in the annealed condition.
Available surface conditions include bright (polished), peeled, black (as forged/rolled), and sandblasted finishes depending on the final application requirements.
We can provide diameters ranging from 0.1mm for cold drawn wires up to 500mm for large forged round bars.
