Do you need custom fasteners created with Custom 450? Since our inception, Vegas Fastener Group has met every challenge of providing Quality, Timely, Cost-effective solutions for specialty fastener applications. Every product is built to your specifications, using your prints if necessary.
Below are the technical specifications of the Custom 450 Bar Stock we have available to meet your needs.
Carpenter Custom 450® Stainless Steel, Annealed
Subcategory: Metal; Stainless Steel; T 400 Series Stainless Steel Key Words: UNS S45000; Carpenter Technology Corporation, Carpenter Steel Division; Cartech
| Component | Wt. % |
| C | Max 0.05 |
| Cr | 14 – 16 |
| Cu | 1.25 – 1.75 |
| Fe | 75 |
| Mn | Max 1 |
| Mo | 0.5 – 1 |
| Ni | 5 – 7 |
| P | Max 0.03 |
| S | Max 0.03 |
| Si | Max 1 |
Material Notes: Iron content calculated as remainder; minimum niobium (columbium) content 8 x C. Data provided by Carpenter Technology Corporation.
Custom 450® stainless is a martensitic age-hardenable stainless steel which exhibits very good corrosion resistance (similar to that of Stainless Type 304) with moderate strength (similar to that of Stainless Type 410). the alloy has a yield strength somewhat greater than 100 ksi (689 MPa) in the annealed condition, but is easily fabricated. A single-step aging treatment develops higher strength with good ductility and toughness. This stainless can be machined, hot-worked, and cold-formed in the same manner as other martensitic age-hardenable stainless steels. A particular advantage is ease of welding and brazing. Custom 450 stainless is generally supplied in the annealed condition, requiring no heat treatment by the user for many applications. Because it has corrosion resistance like Type 304 stainless but three times the yield strength, it has been used in applications where Type 304 was not strong enough. On the other hand, it has also replaced Type 410 stainless directly on a strength basis where Type 410 had insufficient corrosion resistance. Mechanical properties will depend on the aging temperature selected.
Custom 450® is a registered trademark of Carpenter Technology Corporation.
| Physical Properties | Metric | English | Comments |
| Density | 7.75 g/cc | 0.28 lb/in³ | |
| Mechanical Properties | |||
| Hardness, Brinell | 278 | 278 | Estimated from Rockwell C for 3000 kg load, 10 mm ball Brinell measurement. |
| Hardness, Knoop | 301 | 301 | Estimated from Rockwell C |
| Hardness, Rockwell C | 28 | 28 | |
| Hardness, Vickers | 292 | 292 | Estimated from Rockwell C |
| Tensile Strength, Ultimate | 979 MPa | 142000 psi | |
| Tensile Strength, Yield | 814 MPa | 118000 psi | 0.2% Offset |
| Elongation at Break | 13 % | 13 % | In 4D |
| Reduction of Area | 50 % | 50 % | |
| Modulus of Elasticity | 200 GPa | 29000 ksi | |
| Notched Tensile Strength | 1524 MPa | 221000 psi | Kt = 10 |
| Poisson’s Ratio | 0.29 | 0.29 | |
| Charpy Impact | 133 J | 98.1 ft-lb | V-notch |
| Fatigue Strength | 517 MPa | 75000 psi | R.R. Moore Test, Smooth Rotating Beam, 1E+7 Cycles |
| Shear Modulus | 77.5 GPa | 11200 ksi | Calculated |
| Electrical Properties | |||
| Electrical Resistivity | 9.92e-005 ohm-cm | 9.92e-005 ohm-cm | |
| Thermal Properties | |||
| CTE, linear 20°C | 10.58 µm/m-°C | 5.88 µin/in-°F | 24-93ºC |
| CTE, linear 250°C | 10.44 µm/m-°C | 5.8 µin/in-°F | 24-260ºC |
| CTE, linear 500°C | 11.11 µm/m-°C | 6.17 µin/in-°F | 24-593ºC |
| Heat Capacity | 0.477 J/g-°C | 0.114 BTU/lb-°F | |
| Thermal Conductivity | 15 W/m-K | 104 BTU-in/hr-ft²-°F | H900 Condition; at Room Temp. 18.2 W/m-K at 200ºC. 24.4 W/m-K at 500ºC. |
