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ASTM A231 Spring Steel vs. S82013 Stainless Steel

Both ASTM A231 spring steel and S82013 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM A231 spring steel and the bottom bar is S82013 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 540
260
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14
34
Fatigue Strength, MPa 1000
400
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 1080
470
Tensile Strength: Ultimate (UTS), MPa 1790
710
Tensile Strength: Yield (Proof), MPa 1570
500

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
970
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
15
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
11
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.0
2.4
Embodied Energy, MJ/kg 28
34
Embodied Water, L/kg 51
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
220
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 64
26
Strength to Weight: Bending, points 42
23
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 53
20

Alloy Composition

Carbon (C), % 0.48 to 0.53
0 to 0.060
Chromium (Cr), % 0.8 to 1.1
19.5 to 22
Copper (Cu), % 0
0.2 to 1.2
Iron (Fe), % 96.7 to 97.7
70.5 to 77.1
Manganese (Mn), % 0.7 to 0.9
2.5 to 3.5
Nickel (Ni), % 0
0.5 to 1.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 0.9
Sulfur (S), % 0 to 0.040
0 to 0.030
Vanadium (V), % 0.15 to 0.3
0