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EN 1.8902 (S420N) Steel

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OverviewChemical CompositionMechanical PropertiesPhysical PropertiesOther Properties

Property Overview

Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength600MPa
Yield Strength420MPa
Brinell Hardness180HB
Maximum Service Temperature410°C
Weight Calculator

Chemical Composition

C
0 to 0.22%
CR
0 to 0.35%
NI
0 to 0.85%
MO
0 to 0.13%
MN
1.0 to 1.8%
SI
0 to 0.65%
N
0 to 0.027%
P
0 to 0.035%
S
0 to 0.030%
CU
0 to 0.6%
NB
0 to 0.060%
TI
0 to 0.060%
V
0 to 0.22%
AL
0 to 0.015%
FE
95 to 99.05%

Mechanical

A - Min. elongation Lo = 5,65 √ So (%)
19
A - Min. elongation Lo = 5,65 √ So (%)
18
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
21 %
Fatigue Strength
290 MPa
Impact Strength: V-Notched Charpy
58 J
KV - Impact energy (J) longitud., (+N)
+20° 55
+N
KV - Impact energy (J) longitud., (+N)
0° 47
+N
KV - Impact energy (J) longitud., (+N)
-10° 43
+N
KV - Impact energy (J) longitud., (+N)
-20° 40
+N
KV - Impact energy (J) transverse, (+N)
+20° 31
+N
KV - Impact energy (J) transverse, (+N)
0° 27
+N
KV - Impact energy (J) transverse, (+N)
-10° 24
+N
KV - Impact energy (J) transverse, (+N)
-20° 20
+N
Poisson's Ratio
0.29
ReH - Minimum yield strength (MPa)
420
ReH - Minimum yield strength (MPa)
400
ReH - Minimum yield strength (MPa)
390
ReH - Minimum yield strength (MPa)
370
ReH - Minimum yield strength (MPa)
360
ReH - Minimum yield strength (MPa)
340
ReH - Minimum yield strength (MPa)
330
ReH - Minimum yield strength (MPa)
320
Rm - Tensile strength (MPa)
520-680
Rm - Tensile strength (MPa)
500-650
Shear Modulus
73 GPa
Shear Strength
380 MPa
Tensile Strength: Ultimate (UTS)
600 MPa
Tensile Strength: Yield (Proof)
420 MPa

Hardness

Brinell Hardness
180

Physical

Density
7.8 g/cm 3

Thermal

Latent Heat of Fusion
250 J/g
Maximum Temperature: Mechanical
410 °C
Melting Completion (Liquidus)
1460 °C
Melting Onset (Solidus)
1420 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
44 W/m-K
Thermal Diffusivity
12 mm 2 /s
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
18 points

Electrical

Electrical Conductivity: Equal Volume
7.6 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.7 % IACS

Other

Nominal thickness (mm):
to 100
Nominal thickness (mm):
100 - 200
Nominal thickness (mm):
200 - 250
Nominal thickness (mm):
to 16
Nominal thickness (mm):
16 - 40
Nominal thickness (mm):
40 - 63
Nominal thickness (mm):
63 - 80
Nominal thickness (mm):
80 - 100
Nominal thickness (mm):
100 - 150
Nominal thickness (mm):
150 - 200
Nominal thickness (mm):
80 - 200

Calculated

Resilience: Ultimate (Unit Rupture Work)
110 MJ/m 3
Resilience: Unit (Modulus of Resilience)
470 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
21 points
Strength to Weight: Bending
20 points

Environmental

Base Metal Price
2.6 % relative
Embodied Carbon
1.8 kg CO 2 /kg material
Embodied Energy
24 MJ/kg
Embodied Energy
24 MJ/kg 10 x 10 3 BTU/lb
Embodied Water
51 L/kg
Embodied Water
51 L/kg 6.0 gal/lb
Registered Designations & Aliases
1.89021.8902EN 1.8902 (S420N) SteelS420NS420N
Standards

EN 10025-3 EN 10025-3: 2004 Hot rolled products of structural steels. Technical delivery conditions for normalized/normalized rolled weldable fine grain structural steels

EN 10025-3 EN 10025-3: Hot rolled products of structural steels - Part 3: Technical delivery conditions for normalized rolled weldable fine grain structural steels

EN 10025-3 EN 10025-3: Hot rolled products of structural steels - Part 3: Technical delivery conditions for normalized rolled weldable fine grain structural steels Welding Metallurgy, 2nd ed., Sindo Kou, 2003 Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005

EN 10113-2 EN 10113-2: 1993 Hot-rolled products in weldable fine grain structural steels. Delivery conditions for normalized/normalized rolled steels