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Topics Covered
Background
Ferrium C64 Premium-Quality Carburizing Steel from QuesTek
Properties of Ferrium C64
Mechanical Properties of Ferrium
C64
Thermal Properties of Ferrium
C64
Typical Applications of Ferrium C64
Benefits of Ferrium C64
Commercial Availability of Ferrium C64
Background
QuesTek Innovations
LLC is internationally recognized as a leader in computational materials
design technology and its practical application.
QuesTek Innovations
computationally designs materials to directly meet user-defined material needs
by using its proprietary Materials by Design®
expertise and technology. QuesTek Innovations
rapidly invents, designs and develops,
qualifies and inserts new materials into applications to reduce capital, processing,
operating or maintenance costs, or to improve environmental protection, competitive
supply or competitive advantage. QuesTek Innovations
estimate that it reduces development times by as much as 50+% and costs by 70+%
as compared to traditional material development methods.
Ferrium C64 Premium-Quality Carburizing Steel from
QuesTek
Ferrium C64
is a premium-quality carburizing steel that offers high core strength, good
fracture toughness, high fatigue strength, high temperature resistance, and
high surface (i.e. case) hardenability up to 62-64 Rockwell "C" hardness (HRC).
It was designed to permit use of low-pressure (vacuum) carburization technology
and mild gas quenching.
Properties of Ferrium C64
Mechanical Properties of Ferrium C64
The table below lists typical mechanical properties for Ferrium
C64
Test Temperature |
Tensile
Strength |
Yield Strength |
Elongation |
R. of A. |
Fracture
Toughness |
° F |
° C |
ksi |
MPa |
ksi |
MPa |
(% in 1") |
(%) |
ksi√in |
MPa√m |
Room Temperature |
229 |
1579 |
199 |
1372 |
18 |
75 |
85 |
94 |
Thermal Properties of Ferrium C64
The table below lists typical thermal properties for Ferrium
C64
| Mean Coefficient of Thermal
Expansion |
Temp Range |
in / in / ° F |
mm / mm / ° C |
° F |
° C |
(x 10-6) |
(x 10-6) |
75-200 |
24-93 |
5.29 |
9.53 |
| 75-400 |
24-204 |
5.18 |
9.32 |
75-600 |
24-316 |
5.32 |
9.57 |
| 75-800 |
24-427 |
5.53 |
9.95 |
75-1000 |
24-538 |
5.69 |
10.25 |
Typical Applications of Ferrium C64 Premium-Quality Carburizing
Steel
Typical applications of Ferrium C64 can include gears, shafts, actuators, and other
power transmission components where durability, compactness, weight savings,
high temperature resistance or high surface fatigue resistance is valued.
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Benefits of Ferrium C64 Premium-Quality Carburizing Steel
Benefits of using Ferrium C64 vs. alloys such as Pyrowear® Alloy 53 ("X53"),
9310 or 8620 can include:
- Smaller, lighter-weight gears (or greater throughput). Gears and gearboxes
using C64 can handle approximately 15% higher loads than comparable
designs using traditional materials, or be reduced in size and weight by comparable
amounts, due in part to C64's excellent surface contact fatigue resistance and bending
fatigue resistance. Conventional gear steels such as 9310 or 8620 cannot typically
achieve 62-64 Rockwell "C" Hardness case hardness with a fatigue-resistant
microstructure.
- Smaller, lighter-weight driveshafts (or greater throughput). Integral driveshafts
(e.g. with integral gears) using C64 can handle approximately 20-25% higher
loads than comparable driveshafts using traditional materials, or be reduced
in size and weight by comparable amounts. C64's core UTS of 229 ksi is a ~31% increase vs. 9310, for example.
- Reduced manufacturing times and costs, with increased flexibility and control.
C64 was designed to resist grain growth even at high temperatures,
have high hardenability, and use vacuum carburizing with a direct low pressure
gas quench, to thus: maintain good properties in large, thick-sectioned components
(even with vacuum carburizing); reduce final machining/finishing costs by
eliminating intergranular oxide formation and reducing quench distortion;
eliminate the time, expense, equipment and non-uniformity of the traditional
after-carburizing oil quench "hardening" step; and permit "dial-in"
control of carburized case hardness profiles.
- Superior high temperature operability and survivability such as in oil-out
emergency conditions or high-temperature environmments. The 925°F tempering
temperature of C64 is 400-600°F higher than most incumbent alloys, yielding
superior thermal stability.
Commercial Availability of Ferrium C64
Ferrium C64 is produced and sold by Latrobe Specialty Steel
Company, under license from QuesTek
Innovations LLC.
Source: QuesTek Innovations
For more information on this source please visit QuesTek
Innovations