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ASTM A229 Spring Steel vs. AISI 310S Stainless Steel

Both ASTM A229 spring steel and AISI 310S stainless steel are iron alloys. They have 54% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A229 spring steel and the bottom bar is AISI 310S stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 490 to 550
170 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14
34 to 44
Fatigue Strength, MPa 710 to 790
250 to 280
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
79
Shear Strength, MPa 1020 to 1140
420 to 470
Tensile Strength: Ultimate (UTS), MPa 1690 to 1890
600 to 710
Tensile Strength: Yield (Proof), MPa 1100 to 1230
270 to 350

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
16
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
25
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
4.3
Embodied Energy, MJ/kg 19
61
Embodied Water, L/kg 46
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
200 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 3260 to 4080
190 to 310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 60 to 67
21 to 25
Strength to Weight: Bending, points 40 to 43
20 to 22
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 54 to 60
14 to 16

Alloy Composition

Carbon (C), % 0.55 to 0.85
0 to 0.080
Chromium (Cr), % 0
24 to 26
Iron (Fe), % 97.5 to 99
48.3 to 57
Manganese (Mn), % 0.3 to 1.2
0 to 2.0
Nickel (Ni), % 0
19 to 22
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0.15 to 0.35
0 to 1.5
Sulfur (S), % 0 to 0.050
0 to 0.030

Comparable Variants