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Crucible Steel 303 SE Chromium-Nickel Steel

Category Metal , Ferrous Metal , Austenitic , Stainless Steel , T 300 Series Stainless Steel
Manufacturer Crucible Steel
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Crucible Steel 303 SE Chromium-Nickel Steel.pdf
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Material Notes:
Crucible 303 SE is a non-hardenable austenitic chromium-nickel steel to which selenium has been added to improve machinability and non-galling characteristics. This grade is non-magnetic in the annealed condition bt slightly magnetic when cold worked. Typical applications are screw machine products the will be subjected to cold forming. Information provided by Crucible Specialty Metals.
Physical Properties Metric English Comments
Specific Gravity 7.92 g/cc
7.92 g/cc
Mechanical Properties Metric English Comments
Hardness, Brinell 170
170
Tensile Strength, Ultimate 621 MPa
90000 psi
Tensile Strength, Yield 241 MPa

@Strain 0.200 %
35000 psi

@Strain 0.200 %
Elongation at Break 50 %
50 %
in 2"
Reduction of Area 55 %
55 %
Modulus of Elasticity 193 GPa
28000 ksi
Tension
Izod Impact Unnotched 108 J
80.0 ft-lb
Thermal Properties Metric English Comments
CTE, linear 17.3 µm/m-°C

@Temperature 0.000 - 100 °C
9.60 µin/in-°F

@Temperature 32.0 - 212 °F
17.8 µm/m-°C

@Temperature 0.000 - 316 °C
9.90 µin/in-°F

@Temperature 32.0 - 600 °F
18.7 µm/m-°C

@Temperature 0.000 - 649 °C
10.4 µin/in-°F

@Temperature 32.0 - 1200 °F
Specific Heat Capacity 0.502 J/g-°C

@Temperature 0.000 - 100 °C
0.120 BTU/lb-°F

@Temperature 32.0 - 212 °F
Thermal Conductivity 16.25 W/m-K

@Temperature 93.3 °C
112.8 BTU-in/hr-ft²-°F

@Temperature 200 °F
21.6 W/m-K

@Temperature 538 °C
150 BTU-in/hr-ft²-°F

@Temperature 1000 °F
Melting Point 1400 - 1420 °C
2550 - 2590 °F
Solidus 1400 °C
2550 °F
Liquidus 1420 °C
2590 °F
Component Elements Properties Metric English Comments
Carbon, C <= 0.12 %
<= 0.12 %
Chromium, Cr 17 - 19 %
17 - 19 %
Iron, Fe >= 66.76 %
>= 66.76 %
As Remainder
Manganese, Mn <= 2.0 %
<= 2.0 %
Molybdenum, Mo <= 0.60 %
<= 0.60 %
Nickel, Ni 8.0 - 10 %
8.0 - 10 %
Phosphorous, P 0.12 - 0.17 %
0.12 - 0.17 %
Selenium, Se 0.15 - 0.35 %
0.15 - 0.35 %
Silicon, Si <= 1.0 %
<= 1.0 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0000721 ohm-cm

@Temperature 23.0 °C
0.0000721 ohm-cm

@Temperature 73.4 °F
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