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ASTM A229 Spring Steel vs. S24000 Stainless Steel

Both ASTM A229 spring steel and S24000 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ASTM A229 spring steel and the bottom bar is S24000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 490 to 550
210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14
39
Fatigue Strength, MPa 710 to 790
370
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 1020 to 1140
530
Tensile Strength: Ultimate (UTS), MPa 1690 to 1890
770
Tensile Strength: Yield (Proof), MPa 1100 to 1230
430

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
910
Melting Completion (Liquidus), °C 1450
1390
Melting Onset (Solidus), °C 1410
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
12
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 1.4
2.7
Embodied Energy, MJ/kg 19
39
Embodied Water, L/kg 46
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
260
Resilience: Unit (Modulus of Resilience), kJ/m3 3260 to 4080
470
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 60 to 67
28
Strength to Weight: Bending, points 40 to 43
24
Thermal Shock Resistance, points 54 to 60
16

Alloy Composition

Carbon (C), % 0.55 to 0.85
0 to 0.080
Chromium (Cr), % 0
17 to 19
Iron (Fe), % 97.5 to 99
61.5 to 69
Manganese (Mn), % 0.3 to 1.2
11.5 to 14.5
Nickel (Ni), % 0
2.3 to 3.7
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0.15 to 0.35
0 to 0.75
Sulfur (S), % 0 to 0.050
0 to 0.030