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EN 1.8959 (S355J0W) Weathering Steel

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OverviewChemical CompositionMechanical PropertiesPhysical PropertiesOther Properties

Property Overview

Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength570MPa
Yield Strength355MPa
Brinell Hardness170HB
Maximum Service Temperature420°C
Weight Calculator

Chemical Composition

C
0 to 0.19%
CR
0.35 to 0.85%
NI
0 to 0.7%
MO
0 to 0.35%
MN
0.45 to 1.6%
SI
0 to 0.55%
N
0 to 0.010%
P
0 to 0.040%
S
0 to 0.040%
CU
0.2 to 0.6%
ZR
0 to 0.17%
FE
94.9 to 99%

Mechanical

A - Min. elongation Lo = 5,65 √ So (%)
22
A - Min. elongation Lo = 5,65 √ So (%)
21
A - Min. elongation Lo = 5,65 √ So (%)
20
A - Min. elongation Lo = 5,65 √ So (%)
18
A - Min. elongation Lo = 80 mm (%)
16
A - Min. elongation Lo = 80 mm (%)
17
A - Min. elongation Lo = 80 mm (%)
18
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
16 %
Fatigue Strength
220 MPa
Impact Strength: V-Notched Charpy
30 J
KV - Impact energy (J) longitud.,
-20° 27
KV - Impact energy (J) longitud.,
0° 27
Poisson's Ratio
0.29
ReH - Minimum yield strength (MPa)
355
ReH - Minimum yield strength (MPa)
345
ReH - Minimum yield strength (MPa)
335
ReH - Minimum yield strength (MPa)
325
ReH - Minimum yield strength (MPa)
315
ReH - Minimum yield strength (MPa)
295
Rm - Tensile strength (MPa)
510-680
Rm - Tensile strength (MPa)
470-630
Rm - Tensile strength (MPa)
450-600
Shear Modulus
73 GPa
Shear Strength
350 MPa
Tensile Strength: Ultimate (UTS)
570 MPa
Tensile Strength: Yield (Proof)
340 MPa

Hardness

Brinell Hardness
170

Physical

Density
7.8 g/cm 3

Thermal

Latent Heat of Fusion
250 J/g
Maximum Temperature: Mechanical
420 °C
Melting Completion (Liquidus)
1460 °C
Melting Onset (Solidus)
1420 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
39 W/m-K
Thermal Diffusivity
10 mm 2 /s
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
17 points

Electrical

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

Other

Nominal thickness (mm):
to 3
Nominal thickness (mm):
3 - 100
Nominal thickness (mm):
100 - 150
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):
1.5 - 2
Nominal thickness (mm):
2 - 2.5
Nominal thickness (mm):
2.5 - 3
Nominal thickness (mm):
3 - 40
Nominal thickness (mm):
63 - 100

Calculated

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

Environmental

Base Metal Price
2.7 % relative
Embodied Carbon
1.6 kg CO 2 /kg material
Embodied Energy
21 MJ/kg
Embodied Energy
21 MJ/kg 9.2 x 10 3 BTU/lb
Embodied Water
52 L/kg
Embodied Water
52 L/kg 6.2 gal/lb
Registered Designations & Aliases
1.89591.8959EN 1.8959 (S355J0W) Weathering SteelS355J0WS355J0W
Standards

EN 10025-5 EN 10025-5: 2004 Hot rolled products of structual steels. Technical delivery conditions for structural steels with improved atmospheric corrosion resistance

EN 10025-5 EN 10025-5: Hot rolled products of structural steels - Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion resistance

EN 10025-5 EN 10025-5: Hot rolled products of structural steels - Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion resistance Real Material Properties of Weathering Steels Used in Bridge Structures, Vit Krivy and Petr Konecny, 2013 Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005 Steels: Processing, Structure, and Performance, 2nd ed., George Krauss, 2015