Custom 455® Stainless Steel Bar - ASTM F 899
Custom 455® is a martensitic, age-hardenable stainless steel. This alloy represents a significant advancement in the area of precipitation hardening stainless steel. Custom 455® has three times the yield strength of standard 304. It lends itself well to heat treatment and fabrication, has exceptionally high yield strength, good ductility, and toughness. Custom 455® resists staining in normal atmospheres and shows no corrosion in freshwater.
Custom 455® Inventory Size Ranges
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Standard Inventory Specifications
- UNS S45500
- AMS 5617
- ASTM F 899
Common Trade Names
- Custom 455 (® Carpenter Technology Corporation)
- CarTech® Custom 455® Stainless
- Alloy C455
Common Applications of Custom 455®
- Drill bits
- Drivers
- Distractors
- Shafts
- Surgical instruments for orthopedic, spinal, and dental markets
Our medical-grade Custom 455® stainless round bar is domestically melted and manufactured. We stock screw machine quality Custom 455 with tolerances of +/- .0005". All sizes below .75" round bar are stocked to a bar tolerance of +/- .0005". United Performance Metals is Approved ISO 13485 : 2016.
Chemical Composition
| Element | Percent by Weight | |
|---|---|---|
| Mn | Manganese | 0.50 max |
| S | Sulfur | 0.030 max |
| Cr | Chromium | 11.00 - 12.00 |
| Mo | Molybdenum | 0.50 max |
| Ti | Titanium | 0.80 - 1.40 |
| Fe | Iron | Balance |
| C | Carbon | 0.05 max |
| P | Phosphorous | 0.040 max |
| Si | Silicon | 0.50 max |
| Ni | Nickel | 7.50 - 9.50 |
| Cu | Copper | 1.50 - 2.50 |
| Nb Ta | Columbium and Tantalum | 0.10 - 0.50 |
Custom 455® Physical Properties
| Density Metric | 7.76 g/cmc |
| Density Imperial | 0.280 lb/in³ |
Custom 455® Mechanical Properties and Yield Strength
|
Properties |
Metric |
Imperial |
|---|---|---|
|
Tensile Strength |
1413 MPa |
204900 psi |
|
Yield Strength |
1345 MPa |
195100 psi |
|
Modulus of Elasticity |
200 GPa |
29000 ksi |
|
Poisson?s Ration |
0.3 |
0.3 |
|
Elongation at Break |
14% |
14% |
|
Brinell Hardness |
411 |
411 |
|
Knoop Hardness, Rockwell C |
450 |
450 |
|
Vickers Hardness, Rockwell C |
430 |
430 |
|
Hardness, Rockwell C |
44 |
44 |
United Performance Metals is Approved ISO 13485 : 2016.
Custom 455® is a registered trademark of Carpenter Technology Corporation
*The technical data provided is for information only and not for design purposes. It is not warranted or guaranteed.