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Carpenter

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PremoMet(TM) Alloy Seen as a Lower Cost Alternative to Cobalt-Containing Alloys

WYOMISSING, Pa.--(BUSINESS WIRE)--Dec. 3, 2009-- Carpenter Technology Corporation has announced the availability of Carpenter PremoMet™ 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.

                 
Property      

Heat-treated
steel, e.g.
42CrMo4/4140
25MoCr4/8620

    Bearing steel
52100
Fe-1C-1.45Cr
   

High strength
heat-treated
steel, e.g.
34CrNiMo6/4340

    PremoMet™
Alloy
Ultimate tensile Strength (MPa)       900 - 1160     1380     1200 - 1850     2040
Yield strength (MPa)       700 - 800     1275     1000 - 1550     1680
Fatigue strength (MPa)       450-600     800-900     550 - 875     1000
Elongation at break (%)       14     3     10     12
Reduction of area (%)       53     30     40     46

Fracture toughness
KIc(MPa(square root)m)

      62     21     60     88

Material data are typical values only.

 

For more information about Carpenter’s PremoMet™ alloy and other Carpenter alloys, visit Carpenter’s website at http://cts.businesswire.com/ct/CT?id=smartlink&url=http%3A%2F%2Fwww.cartech.com&esheet=6113217&lan=en_US&anchor=www.cartech.com&index=1&md5=a6ed6596271abed39afad9766a3eeee4, 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 http://cts.businesswire.com/ct/CT?id=smartlink&url=http%3A%2F%2Fwww.cartech.com%2Fnewsandevents.aspx%3Fid%3D1266&esheet=6113217&lan=en_US&anchor=www.cartech.com%2Fnewsandevents.aspx%3Fid%3D1266&index=2&md5=f7f7254183ba23c6ef8a78b3256d01bb.

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.

Source: Carpenter Technology Corporation

Carpenter Technology Corporation
For editorial assistance:
845-544-1718
cartechpr@aol.com
or
Carol Aulenbach, 610-208-2355
caulenbach@cartech.com

Carpenter Technology CorporationCarpenter Technology Corporation

Carpenter Technology Corporation is a leading producer and distributor of premium specialty alloys, including titanium alloys, powder metals, stainless steels, alloy steels, and tool steels.

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