Carpenter Technology Corporation has announced the availability of Carpenter PremoMetâ„¢ alloy for consideration as a lower-cost alternative to many cobalt-containing steel alloys. With its superior strength, toughness and fatigue resistance, even in high-load applications, PremoMet alloy could be considered for many high-demand power train components in heavy-duty diesel engines and other commercial transportation and locomotive applications.
PremoMet alloy is a patent pending, ultra-high strength, high toughness, quenched and tempered alloy steel. Thanks to its advanced strength and fracture toughness properties, it may enable designers to lighten the weight of parts for high-load applications by as much as 25%. The weight reduction estimates are based on the attainable ultimate tensile strength of 2,040 MPa (296 ksi) combined with the fracture toughness which is much higher than the lower-strength alternatives. Refer to the table for technical comparisons with several alloy steels currently in use.
Lighter-weight components could result in a reduction of stress on other parts, meaning lower energy consumption throughout a product's lifecycle.
PremoMet alloy is available exclusively from Carpenter in bar, hollow bar, wire, strip, plate and billet forms and can be plated.
| Â | Â | Â | Â | Â | Â | Â | Â | Â | |||||
| Property | Â | Â | Â | Heat-treated | Â | Â | Bearing steel 52100 Fe-1C-1.45Cr | Â | Â | High strength | Â | Â | PremoMetâ„¢ Alloy |
| Ultimate tensile Strength (MPa) | Â | Â | Â | 900 - 1160 | Â | Â | 1380 | Â | Â | 1200 - 1850 | Â | Â | 2040 |
| Yield strength (MPa) | Â | Â | Â | 700 - 800 | Â | Â | 1275 | Â | Â | 1000 - 1550 | Â | Â | 1680 |
| Fatigue strength (MPa) | Â | Â | Â | 450-600 | Â | Â | 800-900 | Â | Â | 550 - 875 | Â | Â | 1000 |
| Elongation at break (%) | Â | Â | Â | 14 | Â | Â | 3 | Â | Â | 10 | Â | Â | 12 |
| Reduction of area (%) | Â | Â | Â | 53 | Â | Â | 30 | Â | Â | 40 | Â | Â | 46 |
Fracture toughness | Â | Â | Â | 62 | Â | Â | 21 | Â | Â | 60 | Â | Â | 88 |
Material data are typical values only. | |||||||||||||
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For more information about Carpenter's PremoMetâ„¢ alloy and other Carpenter alloys, visit Carpenter's website at www.cartech.com, e-mail service@cartech.com or telephone (610) 208-2000 or (800) 654-6543. High-res images are available upon request at caulenbach@cartech.com or from www.cartech.com/newsandevents.aspx?id=1266.
Carpenter Technology Corporation, based in Wyomissing, PA, USA, is a leading manufacturer and distributor of specialty metals including stainless steel and titanium and various engineered products.
Contacts:
Carpenter Technology Corporation
For editorial assistance:
845-544-1718
cartechpr@aol.com
or
Carol
Aulenbach, 610-208-2355
caulenbach@cartech.com
