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Specialty Compounds RTP Company

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ATI Allvac® Vasco® 4340 Specialty Steel, Heat Treatment: 899°C (1650°F) Q+T
Categories: Metal; Ferrous Metal; Alloy Steel

Material Notes: Data provided by Allvac.

Applications: Rocket motor cases, ordnance hardware, aircraft structural components, transmission gears, components, fasteners.

Key Words: Allvac, an Allegheny Teledyne Company, UNS G43400; AMS 6414, 6415, 6359, 6409, 6454. ASTM A 29, A 320, A 322, A 331; MIL-S-5000.
Vendors: Visit metalmen for your metals needs. Products include special chemistry, tight tolerances, custom tempers, odd dimensions/forms, and small quantities. Phone 1-800-767-9494.

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Physical PropertiesOriginal ValueComments
Density 7.83 g/cc
 
Mechanical PropertiesOriginal ValueComments
Hardness, Brinell 422Estimated from Rockwell C value for Brinell test with 3000 kg load/10 mm diameter ball
Hardness, Knoop 463Estimated from Rockwell C value.
Hardness, Rockwell C 45
Hardness, Vickers 442Estimated from Rockwell C value.
Tensile Strength, Ultimate 1724 MPa
Tensile Strength, Yield 1517 MPa
@Strain 0.2 %
Elongation at Break 8.0 %
Reduction of Area 18 %
 
Component Elements PropertiesOriginal ValueComments
Carbon, C 0.41 %
Chromium, Cr 0.80 %
Iron, Fe 96 %as balance
Manganese, Mn 0.70 %
Molybdenum, Mo 0.25 %
Nickel, Ni 1.9 %
Phosphorus, P 0.018 %
Silicon, Si 0.23 %
Sulfur, S 0.020 %

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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NALL70 / 14802

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