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EN 1.4313 Stainless Steel vs. ASTM A231 Spring Steel

Both EN 1.4313 stainless steel and ASTM A231 spring steel are iron alloys. They have 83% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4313 stainless steel and the bottom bar is ASTM A231 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 12 to 17
14
Fatigue Strength, MPa 340 to 510
1000
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 460 to 600
1080
Tensile Strength: Ultimate (UTS), MPa 750 to 1000
1790
Tensile Strength: Yield (Proof), MPa 580 to 910
1570

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 780
420
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
52
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.4
2.0
Embodied Energy, MJ/kg 34
28
Embodied Water, L/kg 110
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 150
230
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27 to 36
64
Strength to Weight: Bending, points 23 to 28
42
Thermal Diffusivity, mm2/s 6.7
14
Thermal Shock Resistance, points 27 to 36
53

Alloy Composition

Carbon (C), % 0 to 0.050
0.48 to 0.53
Chromium (Cr), % 12 to 14
0.8 to 1.1
Iron (Fe), % 78.5 to 84.2
96.7 to 97.7
Manganese (Mn), % 0 to 1.5
0.7 to 0.9
Molybdenum (Mo), % 0.3 to 0.7
0
Nickel (Ni), % 3.5 to 4.5
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.7
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040
Vanadium (V), % 0
0.15 to 0.3