- Materials
-
Industries
Industries
Our technical strengths, distinct products, and extraordinary process capabilities as a steel supplier provide you with value-added solutions that create breakthrough results.
- Services
- Find a Sales Rep
- Pay Online
- ONLINE ORDERING
Space
Industrial
Naval
Commercial Aero
Power Generation
Defense
Medical420F stainless steel is a martensitic alloy and is identical to 420 stainless steel, but with an addition of Sulfur (Type 2) to dramatically improve the machinability. This alloy has excellent corrosion properties when hardened and offers good ductility in the annealed condition. This grade is used in similar applications to 420 but where complex geometries require good machining requirements such as dental and surgical equipment. (UNS S42020)
Chemical Makeup
| Element | Min | Max |
|---|---|---|
| Carbon, C | 0.3 | 0.4 |
| Manganese, Mn | - | 1.25 |
| Silicon, Si | - | 1 |
| Sulfur, S | 0.15 | 0.35 |
| Phosphorus, P | – | 0.06 |
| Chromium, Cr | 12 | 14 |
| Molybdenum, Mo | - | 0.6 |
Common Applications
-
Aerospace
-
Medical
Benefits
- Good Machinability
- High Strength
- High Hardness
- Corrosion Resistance
- Oxidation Resistance
We stock 420-F ANN to the following specifications:
- AMS-5620 TYPE 2
- ASTM-A-484
- ASTM-A-582
Click on a cross-section to see the sizes we stock: