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EN 1.0314 Steel vs. ASTM A229 Spring Steel

Both EN 1.0314 steel and ASTM A229 spring steel are iron alloys. They have a very high 99% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.0314 steel and the bottom bar is ASTM A229 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 92 to 120
490 to 550
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24 to 25
14
Fatigue Strength, MPa 140 to 220
710 to 790
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 200 to 250
1020 to 1140
Tensile Strength: Ultimate (UTS), MPa 320 to 400
1690 to 1890
Tensile Strength: Yield (Proof), MPa 190 to 310
1100 to 1230

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 53
50
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
19
Embodied Water, L/kg 46
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 68 to 87
200 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 95 to 250
3260 to 4080
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 11 to 14
60 to 67
Strength to Weight: Bending, points 13 to 15
40 to 43
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 10 to 13
54 to 60

Alloy Composition

Aluminum (Al), % 0.020 to 0.060
0
Carbon (C), % 0 to 0.030
0.55 to 0.85
Iron (Fe), % 99.365 to 99.78
97.5 to 99
Manganese (Mn), % 0.2 to 0.4
0.3 to 1.2
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.1
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.050

Comparable Variants