440C
Stainless 440c Product Guide
Applications | Stainless 440c Specifications | Mechanical and Chemical Data
Overview
High strength, moderate corrosion resistant, good hardness and wear resistant material. After heat treatment, Stainless 440c is capable of attaining the highest strength, hardness and wear resistance of all the stainless alloys. Typically used in rolling element bearing, valve seats, high-quality knife blades, surgical instruments, chisels, gage blocks, cutlery, ball bearings and races, molds and dies, knives, valve components, measuring instruments.
Common Trade Names
UNS S44004, AISI 440C, Alloy 440C, Premar 440C, martensitic stainless steel
Other Resources
Safety Data Sheet | Weight Calculator | Mill Test Reports
Products
Purchase Ball 440c | Rectangle Bar 440c | Round Bar 440c | Square Bar 440c
Applications
- Rolling Element Bearings
- Valve Seats/Components
- Knife Blades
- Surgical Instruments
- Chisels
- Gage Blocks
- Cutlery
- Ball Bearings
- Molds
- Dies
- Measuring Instruments
Stainless 440c Specifications
ASTM | AMS |
|---|---|
| A480 | 5630 |
| Mechanical Information | ||||
| Density | Ultimate Tensile Strength | Yield Tensile Strength | Modulus of Elasticity | |
|---|---|---|---|---|
| Imperial | 0.282 lb/in3 | 110,000-286,000 psi | 65,300-276,000 psi | 29,600-31,200 ksi |
| Metric | 7.8 g/cc | 760-1,970 MPa | 450-1,900 MPa | 204-215 GPa |
| Mechanical Information | |||
| Hardness Rockwell | Poissons Ratio | Elongation at break percentage | |
|---|---|---|---|
| B97 | 0.283 | 2-14 | |
|
Chemistry Information
|
|
Element |
Percentage |
| Fe | 80.75 |
| C | 1.05 max |
| Si | 0.4 max |
| Mn | 0.4 max |
| Cr | 17 max |
| Mo | 0.4 max |
