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S34565 Stainless Steel vs. ASTM A232 Spring Steel

Both S34565 stainless steel and ASTM A232 spring steel are iron alloys. They have 49% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S34565 stainless steel and the bottom bar is ASTM A232 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
540
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 39
14
Fatigue Strength, MPa 400
1040
Poisson's Ratio 0.28
0.29
Reduction in Area, % 45
46
Shear Modulus, GPa 80
73
Shear Strength, MPa 610
1090
Tensile Strength: Ultimate (UTS), MPa 900
1790
Tensile Strength: Yield (Proof), MPa 470
1610

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
52
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 28
2.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.3
2.0
Embodied Energy, MJ/kg 73
28
Embodied Water, L/kg 210
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32
64
Strength to Weight: Bending, points 26
42
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 22
53

Alloy Composition

Carbon (C), % 0 to 0.030
0.48 to 0.53
Chromium (Cr), % 23 to 25
0.8 to 1.1
Iron (Fe), % 43.2 to 51.6
96.8 to 97.7
Manganese (Mn), % 5.0 to 7.0
0.7 to 0.9
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 16 to 18
0
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0.4 to 0.6
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.035
Vanadium (V), % 0
0.15 to 0.3