X12CrMoS17
1.4104Free-cutting ferritic stainless — AISI 430F equivalent. S 0.15-0.35% + Mo 0.2-0.5% for machinability and slight improvement in pitting resistance. THE ferritic Automatenstahl for CNC screw machines. Used for screws, nuts, bushings, fittings, and automotive components where ferritische Korrosionsbeständigkeit with machinability is needed. Magnetic, not weldable.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | AISI | USA | AISI 430F (approximate) | S43020 | REF |
| 🇪🇺 | EN | Europe | X12CrMoS17 / 1.4104 | 1.4104 | 100% |
Sources: ASTM A582, EN 10088-3
Mechanical properties — Pro
Annealed
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | ||
| Yield Strength | ||
| Elongation | ||
| Density |
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304 Stainless Steel
1.4301The most widely used austenitic stainless steel. Excellent corrosion resistance, good formability and weldability. Standard choice for food processing, chemical, and architectural applications.
316L
1.4404Low-carbon austenitic stainless steel with molybdenum addition. Superior corrosion resistance to 304, especially against chlorides and pitting. Standard choice for chemical processing, marine, medical implants, and pharmaceutical equipment.
430 Stainless Steel
1.4016Ferritic chromium stainless steel with good corrosion resistance and formability. Lower cost than austenitic grades. Used for automotive trim, kitchen sinks, architectural panels, and appliance components.
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