MakeItFrom.com
Menu (ESC)

ASTM A229 Spring Steel vs. N08028 Stainless Steel

Both ASTM A229 spring steel and N08028 stainless steel are iron alloys. They have a modest 36% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM A229 spring steel and the bottom bar is N08028 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 490 to 550
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14
45
Fatigue Strength, MPa 710 to 790
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
80
Shear Strength, MPa 1020 to 1140
400
Tensile Strength: Ultimate (UTS), MPa 1690 to 1890
570
Tensile Strength: Yield (Proof), MPa 1100 to 1230
240

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
12
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
37
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.4
6.4
Embodied Energy, MJ/kg 19
89
Embodied Water, L/kg 46
240

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
210
Resilience: Unit (Modulus of Resilience), kJ/m3 3260 to 4080
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 60 to 67
19
Strength to Weight: Bending, points 40 to 43
19
Thermal Diffusivity, mm2/s 14
3.2
Thermal Shock Resistance, points 54 to 60
12

Alloy Composition

Carbon (C), % 0.55 to 0.85
0 to 0.030
Chromium (Cr), % 0
26 to 28
Copper (Cu), % 0
0.6 to 1.4
Iron (Fe), % 97.5 to 99
29 to 40.4
Manganese (Mn), % 0.3 to 1.2
0 to 2.5
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
30 to 34
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.030