MakeItFrom.com
Menu (ESC)

ASTM A227 Spring Steel vs. S20910 Stainless Steel

Both ASTM A227 spring steel and S20910 stainless steel are iron alloys. They have 58% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM A227 spring steel and the bottom bar is S20910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 500 to 640
230 to 290
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12
14 to 39
Fatigue Strength, MPa 900 to 1160
310 to 460
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
79
Shear Strength, MPa 1030 to 1330
500 to 570
Tensile Strength: Ultimate (UTS), MPa 1720 to 2220
780 to 940
Tensile Strength: Yield (Proof), MPa 1430 to 1850
430 to 810

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1080
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
13
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
22
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
4.8
Embodied Energy, MJ/kg 19
68
Embodied Water, L/kg 46
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 260
120 to 260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 61 to 79
28 to 33
Strength to Weight: Bending, points 41 to 48
24 to 27
Thermal Diffusivity, mm2/s 14
3.6
Thermal Shock Resistance, points 55 to 71
17 to 21

Alloy Composition

Carbon (C), % 0.45 to 0.85
0 to 0.060
Chromium (Cr), % 0
20.5 to 23.5
Iron (Fe), % 97.4 to 99.1
52.1 to 62.1
Manganese (Mn), % 0.3 to 1.3
4.0 to 6.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 0
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 0.75
Sulfur (S), % 0 to 0.050
0 to 0.030
Vanadium (V), % 0
0.1 to 0.3