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EN 1.4807 Stainless Steel vs. ASTM A227 Spring Steel

Both EN 1.4807 stainless steel and ASTM A227 spring steel are iron alloys. They have 43% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4807 stainless steel and the bottom bar is ASTM A227 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
500 to 640
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 4.5
12
Fatigue Strength, MPa 120
900 to 1160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
72
Tensile Strength: Ultimate (UTS), MPa 480
1720 to 2220
Tensile Strength: Yield (Proof), MPa 250
1430 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1000
400
Melting Completion (Liquidus), °C 1390
1450
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
52
Thermal Expansion, µm/m-K 15
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 39
1.8
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 6.8
1.4
Embodied Energy, MJ/kg 97
19
Embodied Water, L/kg 190
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18
200 to 260
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
61 to 79
Strength to Weight: Bending, points 17
41 to 48
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 12
55 to 71

Alloy Composition

Carbon (C), % 0.3 to 0.5
0.45 to 0.85
Chromium (Cr), % 17 to 20
0
Iron (Fe), % 36.6 to 46.7
97.4 to 99.1
Manganese (Mn), % 0 to 2.0
0.3 to 1.3
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 34 to 36
0
Niobium (Nb), % 1.0 to 1.8
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 1.0 to 2.5
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.050