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Carpenter No. 484® (Carpenter Air-Hard; AISI A2)

Category Metal , Ferrous Metal , Tool Steel , Air-Hardening Steel
Manufacturer Carpenter Technology Corporation (Cartech)
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Carpenter No. 484® (Carpenter Air-Hard; AISI A2).pdf
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Material Notes:
No. 484 tool steel is an air hardening steel capable of hardening throughout in heavy sections. It has been used for those applications in which the sections are very large and those involving extreme accuracy of size extreme hazards in hardening. It has a good balance between hardness and toughness. It is available as a DeCarb-Free product. DCF bars have been cold-finished in the mill therefore eliminating the need for bar bark removal.Applications: Large blanking dies, Thread roller dies, Long punches, Rolls, Master hubs, Trimming dies, Forming dies, Precision tools, Gauges, Coining diesInformation provided by Carpenter Technology Corporation.No. 484® is a registered trademark of Carpenter Technology Corporation.
Physical Properties Metric English Comments
Specific Gravity 7.87 g/cc
7.87 g/cc
Mechanical Properties Metric English Comments
Hardness, Rockwell C 44 - 45
44 - 45
Tempered at 1200°F
63 - 64
63 - 64
As hardened
Tensile Strength, Ultimate 2050 MPa
297000 psi
when tempered at 400°F
Tensile Strength, Yield 1580 MPa
229000 psi
when tempered at 400°F
Elongation at Break 1.0 %
1.0 %
when tempered at 400°F
Reduction of Area 2.0 %
2.0 %
when tempered at 400°F
Modulus of Elasticity 203.4 GPa
29500 ksi
Izod Impact Unnotched 100 J
73.8 ft-lb
when tempered at 400°F
Abrasion 57.7
57.7
loss in mm<sup>3</sup>, As-Hardened; ASTM G65
107.7
107.7
loss in mm<sup>3</sup>, Tempered at 1200°F; ASTM G65
Thermal Properties Metric English Comments
CTE, linear 10.7 µm/m-°C

@Temperature 20.0 - 100 °C
5.94 µin/in-°F

@Temperature 68.0 - 212 °F
13.2 µm/m-°C

@Temperature 20.0 - 400 °C
7.33 µin/in-°F

@Temperature 68.0 - 752 °F
14.4 µm/m-°C

@Temperature 20.0 - 750 °C
8.00 µin/in-°F

@Temperature 68.0 - 1380 °F
Component Elements Properties Metric English Comments
Carbon, C 1.0 %
1.0 %
Chromium, Cr 5.25 %
5.25 %
Iron, Fe 91.35 %
91.35 %
Manganese, Mn 0.80 %
0.80 %
Molybdenum, Mo 1.1 %
1.1 %
Silicon, Si 0.30 %
0.30 %
Vanadium, V 0.20 %
0.20 %
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