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EN 1.0038 Steel vs. EN 1.0254 Steel

Both EN 1.0038 steel and EN 1.0254 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.0038 steel and the bottom bar is EN 1.0254 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 120
120
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23 to 25
27
Fatigue Strength, MPa 140 to 160
190
Impact Strength: V-Notched Charpy, J 28 to 31
38
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 240 to 270
280
Tensile Strength: Ultimate (UTS), MPa 380 to 430
430
Tensile Strength: Yield (Proof), MPa 200 to 220
250

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
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 49
50
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.1
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 48
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72 to 88
100
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 130
170
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 13 to 15
15
Strength to Weight: Bending, points 15 to 16
16
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 12 to 13
14

Alloy Composition

Carbon (C), % 0 to 0.23
0 to 0.16
Chromium (Cr), % 0 to 0.3
0 to 0.3
Copper (Cu), % 0 to 0.6
0 to 0.3
Iron (Fe), % 97.1 to 100
97.2 to 100
Manganese (Mn), % 0 to 1.5
0 to 1.2
Molybdenum (Mo), % 0 to 0.080
0 to 0.080
Nickel (Ni), % 0 to 0.3
0 to 0.3
Niobium (Nb), % 0
0 to 0.010
Nitrogen (N), % 0 to 0.014
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 0.55
0 to 0.35
Sulfur (S), % 0 to 0.045
0 to 0.020
Titanium (Ti), % 0
0 to 0.040
Vanadium (V), % 0
0 to 0.020