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ASTM A229 Spring Steel vs. S30600 Stainless Steel

Both ASTM A229 spring steel and S30600 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A229 spring steel and the bottom bar is S30600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 490 to 550
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14
45
Fatigue Strength, MPa 710 to 790
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Shear Strength, MPa 1020 to 1140
430
Tensile Strength: Ultimate (UTS), MPa 1690 to 1890
610
Tensile Strength: Yield (Proof), MPa 1100 to 1230
270

Thermal Properties

Latent Heat of Fusion, J/g 250
350
Maximum Temperature: Mechanical, °C 400
950
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1410
1330
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 50
14
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
19
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 1.4
3.6
Embodied Energy, MJ/kg 19
51
Embodied Water, L/kg 46
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
220
Resilience: Unit (Modulus of Resilience), kJ/m3 3260 to 4080
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 60 to 67
22
Strength to Weight: Bending, points 40 to 43
21
Thermal Diffusivity, mm2/s 14
3.7
Thermal Shock Resistance, points 54 to 60
14

Alloy Composition

Carbon (C), % 0.55 to 0.85
0 to 0.018
Chromium (Cr), % 0
17 to 18.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 97.5 to 99
58.9 to 65.3
Manganese (Mn), % 0.3 to 1.2
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 0
14 to 15.5
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0.15 to 0.35
3.7 to 4.3
Sulfur (S), % 0 to 0.050
0 to 0.020