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ASTM A231 Spring Steel vs. EN 1.0116 Steel

Both ASTM A231 spring steel and EN 1.0116 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 30 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 ASTM A231 spring steel and the bottom bar is EN 1.0116 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 540
110
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14
23
Fatigue Strength, MPa 1000
140
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 1080
240
Tensile Strength: Ultimate (UTS), MPa 1790
380
Tensile Strength: Yield (Proof), MPa 1570
200

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
49
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
2.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.4
Embodied Energy, MJ/kg 28
19
Embodied Water, L/kg 51
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
72
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 64
13
Strength to Weight: Bending, points 42
15
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 53
12

Alloy Composition

Carbon (C), % 0.48 to 0.53
0 to 0.17
Chromium (Cr), % 0.8 to 1.1
0 to 0.3
Iron (Fe), % 96.7 to 97.7
97.1 to 100
Manganese (Mn), % 0.7 to 0.9
0 to 1.4
Molybdenum (Mo), % 0
0 to 0.080
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0.15 to 0.35
0 to 0.55
Sulfur (S), % 0 to 0.040
0 to 0.035
Vanadium (V), % 0.15 to 0.3
0