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AISI 8630H Steel, oil quenched 845°C (1550°F), 455°C (850°F) temper
Categories: Metal; Ferrous Metal; Alloy Steel; AISI 8000 Series Steel; Low Alloy Steel; Carbon Steel; Medium Carbon Steel

Material Notes:

Key Words: UNS H86300, ASTM A304, SAE J1268, DIN 1.6545, UNI 30 NiCrMo 2 KB
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Physical PropertiesMetricEnglishComments
Density 7.85 g/cc0.284 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Knoop 318318Converted from Vickers hardness.
 349
@Temperature -79.0 °C
349
@Temperature -110 °F
Converted from Vickers hardness
 395
@Temperature -195 °C
395
@Temperature -319 °F
Converted from Vickers hardness
Hardness, Rockwell C 3030Converted from Vickers hardness.
 34
@Temperature -79.0 °C
34
@Temperature -110 °F
Converted from Vickers hardness
 39
@Temperature -195 °C
39
@Temperature -319 °F
Converted from Vickers hardness
Hardness, Vickers 302302
 332
@Temperature -79.0 °C
332
@Temperature -110 °F
 376
@Temperature -195 °C
376
@Temperature -319 °F
Tensile Strength, Ultimate 979 MPa142000 psi
 1060 MPa
@Temperature -79.0 °C
154000 psi
@Temperature -110 °F
 1325 MPa
@Temperature -195 °C
192200 psi
@Temperature -319 °F
Tensile Strength, Yield 841 MPa
@Strain 0.2 %
122000 psi
@Strain 0.2 %
 876 MPa
@Strain 0.2 %,
Temperature -79.0 °C
127000 psi
@Strain 0.2 %,
Temperature -110 °F
 1145 MPa
@Strain 0.2 %,
Temperature -195 °C
166100 psi
@Strain 0.2 %,
Temperature -319 °F
Elongation at Break 16 %16 %in 50 mm
 12 %
@Temperature -195 °C
12 %
@Temperature -319 °F
in 50 mm
 17 %
@Temperature -79.0 °C
17 %
@Temperature -110 °F
in 50 mm
Modulus of Elasticity 205 GPa29700 ksi
 214 GPa
@Temperature -79.0 °C
31000 ksi
@Temperature -110 °F
 223 GPa
@Temperature -195 °C
32300 ksi
@Temperature -319 °F
Bulk Modulus 160 GPa23200 ksiTypical for steel
Poissons Ratio 0.300.30Calculated
Fatigue Strength 205 MPa29700 psiNotched Limit
 485 MPa70300 psiUnnotched Limit
 240 MPa
@Temperature -195 °C
34800 psi
@Temperature -319 °F
Notched Limit
 550 MPa
@Temperature -79.0 °C
79800 psi
@Temperature -110 °F
Unnotched Limit
 862 MPa
@Temperature -195 °C
125000 psi
@Temperature -319 °F
Unnotched Limit
Machinability 70 %70 %annealed and cold drawn. Based on AISI 1212 steel = 100%.
Shear Modulus 79.0 GPa11500 ksiEstimated from elastic modulus
 82.0 GPa
@Temperature -79.0 °C
11900 ksi
@Temperature -110 °F
Estimated from elastic modulus
 85.8 GPa
@Temperature -195 °C
12400 ksi
@Temperature -319 °F
Estimated from elastic modulus
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000234 ohm-cm0.0000234 ohm-cmTypical steel
 
Thermal PropertiesMetricEnglishComments
CTE, linear  11.2 µm/m-°C
@Temperature 21.0 - 100 °C
6.22 µin/in-°F
@Temperature 69.8 - 212 °F
 12.2 µm/m-°C
@Temperature 21.0 - 200 °C
6.78 µin/in-°F
@Temperature 69.8 - 392 °F
 14.0 µm/m-°C
@Temperature 21.0 - 500 °C
7.78 µin/in-°F
@Temperature 69.8 - 932 °F
Specific Heat Capacity 0.475 J/g-°C0.114 BTU/lb-°FTypical steel
Thermal Conductivity 46.6 W/m-K323 BTU-in/hr-ft²-°FTypical steel
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 0.27 - 0.33 %0.27 - 0.33 %
Chromium, Cr 0.35 - 0.65 %0.35 - 0.65 %
Iron, Fe 96.695 - 98.08 %96.695 - 98.08 %As remainder
Manganese, Mn 0.65 - 0.95 %0.65 - 0.95 %
Molybdenum, Mo 0.15 - 0.25 %0.15 - 0.25 %
Nickel, Ni 0.35 - 0.75 %0.35 - 0.75 %
Phosphorus, P <= 0.035 %<= 0.035 %
Silicon, Si 0.15 - 0.30 %0.15 - 0.30 %
Sulfur, S <= 0.040 %<= 0.040 %

References for this datasheet.

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M863BD / 8410

Specialty Compounds RTP Company

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