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N08332 Stainless Steel vs. ASTM A232 Spring Steel

Both N08332 stainless steel and ASTM A232 spring steel are iron alloys. They have 45% 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 N08332 stainless steel and the bottom bar is ASTM A232 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
540
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
14
Fatigue Strength, MPa 170
1040
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 350
1090
Tensile Strength: Ultimate (UTS), MPa 520
1790
Tensile Strength: Yield (Proof), MPa 210
1610

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1050
420
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1340
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
52
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 32
2.3
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.4
2.0
Embodied Energy, MJ/kg 77
28
Embodied Water, L/kg 190
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
64
Strength to Weight: Bending, points 18
42
Thermal Diffusivity, mm2/s 3.1
14
Thermal Shock Resistance, points 12
53

Alloy Composition

Carbon (C), % 0.050 to 0.1
0.48 to 0.53
Chromium (Cr), % 17 to 20
0.8 to 1.1
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 38.3 to 48.2
96.8 to 97.7
Lead (Pb), % 0 to 0.0050
0
Manganese (Mn), % 0 to 2.0
0.7 to 0.9
Nickel (Ni), % 34 to 37
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.75 to 1.5
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.035
Tin (Sn), % 0 to 0.025
0
Vanadium (V), % 0
0.15 to 0.3