Werkstoff 1.4057 AISI 431 UNS S43100
Werkstoff martensitic stainless steel 1.4057 AISI 431 UNS S43100 has the distinction of being hardenable and among stainless steels offers mechanical and fatigue strength combined with corrosion resistance superior to that of chromium-only steels. It is the most economical solution for making high-strength fastening systems for corrosive applications.
EN 3506 defines it as one of the suitable materials for making C3-80 screws.
CHEMICAL COMPOSITION Werkstoff 1.4057 AISI 431 UNS S43100
| Element | Min | Max |
|---|---|---|
| C | 0.17 | 0.25 |
| Yes max | 1.00 | |
| Mn max | 1.00 | |
| Cr | 16.0 | 18.0 |
| S max | 0.003 | |
| P max | 0.04 | |
| Ni | 1.50 | 2.50 |
MECHANICAL CHARACTERISTICS Werkstoff 1.4057 AISI 431 UNS S43100
| Material | League | Rm min (MPa) | Rp 0.2 min (MPa) | A% min | Hardness |
|---|---|---|---|---|---|
| AISI 431 – C3-80 | 1.4057 | 800 – 950 | 640 | 0.2d | 21 – 35 HRC |
PHYSICAL PROPERTIES Werkstoff 1.4057 AISI 431 UNS S43100
- Specific gravity: kg/cm³ 20°C – 77 kg/dm³
- Modulus of elasticity: N/mm² 20°C – 216,000
- Thermal conductivity: W/m.K. (20°C) – 25.0
- Magnetic
CORRESPONDENCE AND SPECIFICATIONS Werkstoff 1.4057 AISI 431 UNS S43100
- EN 10088/3: X 17 Cr Ni 16-2
- W: 1.4057
- JIS: SUS 431
- AISI: 431
- UNS: S43100
- ISO: 3506-1 C3-80
