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EN 1.8958 Steel vs. EN 1.5637 Steel

Both EN 1.8958 steel and EN 1.5637 steel are iron alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.8958 steel and the bottom bar is EN 1.5637 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
24
Fatigue Strength, MPa 150
280
Impact Strength: V-Notched Charpy, J 30
64
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 270
360
Tensile Strength: Ultimate (UTS), MPa 430
560
Tensile Strength: Yield (Proof), MPa 220
390

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
410
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
52
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
4.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.8
Embodied Energy, MJ/kg 19
24
Embodied Water, L/kg 50
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
120
Resilience: Unit (Modulus of Resilience), kJ/m3 130
410
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15
20
Strength to Weight: Bending, points 16
19
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 13
16

Alloy Composition

Carbon (C), % 0 to 0.16
0 to 0.15
Chromium (Cr), % 0.35 to 0.85
0
Copper (Cu), % 0.2 to 0.6
0
Iron (Fe), % 96.5 to 99.3
94.9 to 96.5
Manganese (Mn), % 0.15 to 0.7
0.3 to 0.8
Nickel (Ni), % 0 to 0.7
3.3 to 3.8
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 0.45
0 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.0050
Vanadium (V), % 0
0 to 0.050