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N08135 Stainless Steel vs. ASTM A232 Spring Steel

Both N08135 stainless steel and ASTM A232 spring steel are iron alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is N08135 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, % 46
14
Fatigue Strength, MPa 220
1040
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Shear Strength, MPa 400
1090
Tensile Strength: Ultimate (UTS), MPa 570
1790
Tensile Strength: Yield (Proof), MPa 240
1610

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 39
2.3
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 6.8
2.0
Embodied Energy, MJ/kg 94
28
Embodied Water, L/kg 220
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
64
Strength to Weight: Bending, points 19
42
Thermal Shock Resistance, points 13
53

Alloy Composition

Carbon (C), % 0 to 0.030
0.48 to 0.53
Chromium (Cr), % 20.5 to 23.5
0.8 to 1.1
Copper (Cu), % 0 to 0.7
0
Iron (Fe), % 30.2 to 42.3
96.8 to 97.7
Manganese (Mn), % 0 to 1.0
0.7 to 0.9
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 33 to 38
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 0.75
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.035
Tungsten (W), % 0.2 to 0.8
0
Vanadium (V), % 0
0.15 to 0.3