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Master Bond adhesives

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AISI 8640H Steel, oil quenched 845°C (1550°F), 650°C (1200°F) temper, round
Categories: Metal; Ferrous Metal; Alloy Steel; AISI 8000 Series Steel; Low Alloy Steel; Carbon Steel; Medium Carbon Steel
Key Words: B.S. Type 7, UNS H86400, ASTM A304, SAE J1268, DIN 1.6546, UNI 40 NiCrMo 2 KB, ISO 683-12 10, ISO 683/VIII 1, ISO 683/VIII 1a, ISO 683/VIII 1b, ISO R683-8 1a, ISO R683-8 1b
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Physical PropertiesOriginal ValueComments
Density 7.85 g/cc
 
Mechanical PropertiesOriginal ValueComments
Hardness, Brinell 211
@Diameter 76.2 mm
 219
@Diameter 102 mm
 221
@Diameter 50.8 mm
 280
@Diameter 25.4 mm
Hardness, Knoop 234
@Diameter 76.2 mm		Converted from Brinell
 242
@Diameter 102 mm		Converted from Brinell
 244
@Diameter 50.8 mm		Converted from Brinell
 306
@Diameter 25.4 mm		Converted from Brinell
Hardness, Rockwell B 94
@Diameter 76.2 mm		Converted from Brinell
 95
@Diameter 102 mm		Converted from Brinell
 95
@Diameter 50.8 mm		Converted from Brinell
 99
@Diameter 25.4 mm		Converted from Brinell
Hardness, Rockwell C 16
@Diameter 76.2 mm		Converted from Brinell hardness. Value below normal HRC range, for comparison only.
 17
@Diameter 102 mm		Converted from Brinell hardness. Value below normal HRC range, for comparison only.
 18
@Diameter 50.8 mm		Converted from Brinell hardness. Value below normal HRC range, for comparison only.
 29
@Diameter 25.4 mm		Converted from Brinell
Hardness, Vickers 222
@Diameter 76.2 mm		Converted from Brinell
 230
@Diameter 102 mm		Converted from Brinell
 232
@Diameter 50.8 mm		Converted from Brinell
 295
@Diameter 25.4 mm		Converted from Brinell
Tensile Strength, Ultimate 772 MPa
@Diameter 102 mm
 793 MPa
@Diameter 76.2 mm
 848 MPa
@Diameter 50.8 mm
 972 MPa
@Diameter 25.4 mm
Tensile Strength, Yield 635 MPa
@Diameter 102 mm
 655 MPa
@Diameter 76.2 mm
 717 MPa
@Diameter 50.8 mm
 827 MPa
@Diameter 25.4 mm
Elongation at Break 16 %
@Diameter 25.4 mm		in 50 mm
 19 %
@Diameter 50.8 mm		in 50 mm
 21 %
@Diameter 76.2 mm		in 50 mm
 22 %
@Diameter 102 mm		in 50 mm
Modulus of Elasticity 205 GPaTypical for steel
Bulk Modulus 160 GPaTypical for steel.
Poissons Ratio 0.29Calculated
Machinability 65 %annealed and cold drawn. Based on AISI 1212 steel = 100%.
Shear Modulus 80.0 GPaTypical for steel.
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.0000234 ohm-cmTypical steel
 
Thermal PropertiesOriginal ValueComments
Specific Heat Capacity 0.475 J/g-°CTypical steel
Thermal Conductivity 46.6 W/m-KTypical steel
 
Component Elements PropertiesOriginal ValueComments
Carbon, C 0.37 - 0.44 %
Chromium, Cr 0.35 - 0.65 %
Iron, Fe 96.485 - 97.93 %As remainder
Manganese, Mn 0.70 - 1.05 %
Molybdenum, Mo 0.15 - 0.25 %
Nickel, Ni 0.35 - 0.75 %
Phosphorus, P <= 0.035 %
Silicon, Si 0.15 - 0.30 %
Sulfur, S <= 0.040 %

References for this datasheet.

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