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S35000 Stainless Steel vs. ASTM A232 Spring Steel

Both S35000 stainless steel and ASTM A232 spring steel are iron alloys. They have 77% 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 S35000 stainless steel and the bottom bar is ASTM A232 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 2.3 to 14
14
Fatigue Strength, MPa 380 to 520
1040
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 740 to 950
1090
Tensile Strength: Ultimate (UTS), MPa 1300 to 1570
1790
Tensile Strength: Yield (Proof), MPa 660 to 1160
1610

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 900
420
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
52
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 14
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.2
2.0
Embodied Energy, MJ/kg 44
28
Embodied Water, L/kg 130
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28 to 170
250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 46 to 56
64
Strength to Weight: Bending, points 34 to 38
42
Thermal Diffusivity, mm2/s 4.4
14
Thermal Shock Resistance, points 42 to 51
53

Alloy Composition

Carbon (C), % 0.070 to 0.11
0.48 to 0.53
Chromium (Cr), % 16 to 17
0.8 to 1.1
Iron (Fe), % 72.7 to 76.9
96.8 to 97.7
Manganese (Mn), % 0.5 to 1.3
0.7 to 0.9
Molybdenum (Mo), % 2.5 to 3.2
0
Nickel (Ni), % 4.0 to 5.0
0
Nitrogen (N), % 0.070 to 0.13
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.035
Vanadium (V), % 0
0.15 to 0.3