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Elmet Technologies

Ovako S400* S420N Steel, +AR
Categories: Metal; Ferrous Metal; Alloy Steel

Material Notes: General Information: Grade SB400D is a micro-alloyed steel for general purposes with specified mechanical properties and impact requirements. The material is delivered as rolled and suitable for welding. The mechanical properties may change if the material is heat-treated. Grade SB420 is a micro-alloyed steel for general purposes with specified mechanical properties and impact requirements. The material is delivered as rolled. The mechanical properties may change if the material is heat-treated.

Information provided by Ovako

Key Words: 2142
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Physical PropertiesMetricEnglishComments
Density 7.80 g/cc0.282 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell  160 - 205
@Thickness <=16.0 mm
160 - 205
@Thickness <=0.630 in
Flat bar
 160 - 205
@Thickness 16.0 - 40.0 mm
160 - 205
@Thickness 0.630 - 1.57 in
Flat bar
 160 - 205
@Thickness 40.0 - 63.0 mm
160 - 205
@Thickness 1.57 - 2.48 in
Flat bar
 160 - 205
@Thickness 63.0 - 80.0 mm
160 - 205
@Thickness 2.48 - 3.15 in
Flat bar
 160 - 205
@Thickness 80.0 - 100 mm
160 - 205
@Thickness 3.15 - 3.94 in
Flat bar
Tensile Strength  520 - 680 MPa
@Thickness <=16.0 mm
75400 - 98600 psi
@Thickness <=0.630 in
Flat bar
 520 - 680 MPa
@Thickness 16.0 - 40.0 mm
75400 - 98600 psi
@Thickness 0.630 - 1.57 in
Flat bar
 520 - 680 MPa
@Thickness 40.0 - 63.0 mm
75400 - 98600 psi
@Thickness 1.57 - 2.48 in
Flat bar
 520 - 680 MPa
@Thickness 63.0 - 80.0 mm
75400 - 98600 psi
@Thickness 2.48 - 3.15 in
Flat bar
 520 - 680 MPa
@Thickness 80.0 - 100 mm
75400 - 98600 psi
@Thickness 3.15 - 3.94 in
Flat bar
Tensile Strength, Yield  >= 360 MPa
@Thickness 80.0 - 100 mm
>= 52200 psi
@Thickness 3.15 - 3.94 in
Rel, Flat bar
 >= 370 MPa
@Thickness 63.0 - 80.0 mm
>= 53700 psi
@Thickness 2.48 - 3.15 in
Rel, Flat bar
 >= 390 MPa
@Thickness 40.0 - 63.0 mm
>= 56600 psi
@Thickness 1.57 - 2.48 in
Rel, Flat bar
 >= 400 MPa
@Thickness 16.0 - 40.0 mm
>= 58000 psi
@Thickness 0.630 - 1.57 in
Rel, Flat bar
 >= 420 MPa
@Thickness <=16.0 mm
>= 60900 psi
@Thickness <=0.630 in
Rel, Flat bar
Elongation at Break  18 %
@Thickness 63.0 - 80.0 mm
18 %
@Thickness 2.48 - 3.15 in
Flat bar
 18 %
@Thickness 80.0 - 100 mm
18 %
@Thickness 3.15 - 3.94 in
Flat bar
 19 %
@Thickness <=16.0 mm
19 %
@Thickness <=0.630 in
Flat bar
 19 %
@Thickness 16.0 - 40.0 mm
19 %
@Thickness 0.630 - 1.57 in
Flat bar
 19 %
@Thickness 40.0 - 63.0 mm
19 %
@Thickness 1.57 - 2.48 in
Flat bar
Modulus of Elasticity 210 GPa30500 ksi
Poissons Ratio 0.300.30
Shear Modulus 80.0 GPa11600 ksi
Impact Test  40.0 J
@Thickness <=16.0 mm,
Temperature -20.0 °C
29.5 ft-lb
@Thickness <=0.630 in,
Temperature -4.00 °F
Flat bar
 40.0 J
@Thickness 16.0 - 40.0 mm,
Temperature -20.0 °C
29.5 ft-lb
@Thickness 0.630 - 1.57 in,
Temperature -4.00 °F
Flat bar
 40.0 J
@Thickness 40.0 - 63.0 mm,
Temperature -20.0 °C
29.5 ft-lb
@Thickness 1.57 - 2.48 in,
Temperature -4.00 °F
Flat bar
 40.0 J
@Thickness 63.0 - 80.0 mm,
Temperature -20.0 °C
29.5 ft-lb
@Thickness 2.48 - 3.15 in,
Temperature -4.00 °F
Flat bar
 40.0 J
@Thickness 80.0 - 100 mm,
Temperature -20.0 °C
29.5 ft-lb
@Thickness 3.15 - 3.94 in,
Temperature -4.00 °F
Flat bar
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.00000200 - 0.00000250 ohm-cm0.00000200 - 0.00000250 ohm-cm
 
Thermal PropertiesMetricEnglishComments
CTE, linear 12.0 µm/m-°C
@Temperature 20.0 - 300 °C
6.67 µin/in-°F
@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.460 - 0.480 J/g-°C
@Temperature 50.0 - 100 °C
0.110 - 0.115 BTU/lb-°F
@Temperature 122 - 212 °F
Thermal Conductivity 40.0 - 45.0 W/m-K278 - 312 BTU-in/hr-ft²-°FAmbient temperature
Transformation Temperature 400 °C752 °FMS
 720 °C1330 °FAC1
 820 °C1510 °FAC3
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al <= 0.020 %<= 0.020 %
Carbon, C <= 0.20 %<= 0.20 %
Copper, Cu <= 0.55 %<= 0.55 %
Iron, Fe 96.51 - 98.92 %96.51 - 98.92 %As Balance
Manganese, Mn 1.0 - 1.7 %1.0 - 1.7 %
Molybdenum, Mo <= 0.10 %<= 0.10 %
Nickel, Ni >= 0.080 %>= 0.080 %
Nitrogen, N <= 0.025 %<= 0.025 %
Phosphorus, P <= 0.035 %<= 0.035 %
Silicon, Si <= 0.60 %<= 0.60 %
Sulfur, S <= 0.030 %<= 0.030 %
Titanium, Ti <= 0.030 %<= 0.030 %
Vanadium, V <= 0.20 %<= 0.20 %
 
Descriptive Properties
WeldabilityCEV 0.6max
 Pcm 0.35max

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