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S24000 Stainless Steel vs. ASTM A227 Spring Steel

Both S24000 stainless steel and ASTM A227 spring steel are iron alloys. They have 66% of their average alloy composition in common. There are 26 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 S24000 stainless steel and the bottom bar is ASTM A227 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
500 to 640
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
12
Fatigue Strength, MPa 370
900 to 1160
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Shear Strength, MPa 530
1030 to 1330
Tensile Strength: Ultimate (UTS), MPa 770
1720 to 2220
Tensile Strength: Yield (Proof), MPa 430
1430 to 1850

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 260
200 to 260
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
61 to 79
Strength to Weight: Bending, points 24
41 to 48
Thermal Shock Resistance, points 16
55 to 71

Alloy Composition

Carbon (C), % 0 to 0.080
0.45 to 0.85
Chromium (Cr), % 17 to 19
0
Iron (Fe), % 61.5 to 69
97.4 to 99.1
Manganese (Mn), % 11.5 to 14.5
0.3 to 1.3
Nickel (Ni), % 2.3 to 3.7
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 0 to 0.75
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.050