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EN 1.6958 Steel vs. EN 1.0225 Steel

Both EN 1.6958 steel and EN 1.0225 steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.6958 steel and the bottom bar is EN 1.0225 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
130 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
6.7 to 24
Fatigue Strength, MPa 700
170 to 220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 700
280 to 290
Tensile Strength: Ultimate (UTS), MPa 1140
440 to 500
Tensile Strength: Yield (Proof), MPa 1070
230 to 380

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 450
400
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 47
52
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.4
Embodied Energy, MJ/kg 27
18
Embodied Water, L/kg 60
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
31 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 3050
140 to 390
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 40
16 to 18
Strength to Weight: Bending, points 31
16 to 18
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 39
14 to 16

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
0
Carbon (C), % 0.25 to 0.3
0 to 0.21
Chromium (Cr), % 1.2 to 1.7
0
Iron (Fe), % 92.6 to 94.5
98 to 100
Manganese (Mn), % 0.2 to 0.5
0 to 1.4
Molybdenum (Mo), % 0.35 to 0.55
0
Nickel (Ni), % 3.3 to 3.8
0
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0.15 to 0.3
0 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.045
Vanadium (V), % 0 to 0.12
0