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EN 1.4877 Stainless Steel vs. ASTM A231 Spring Steel

Both EN 1.4877 stainless steel and ASTM A231 spring steel are iron alloys. They have 41% of their average alloy composition in common. There are 30 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 1.4877 stainless steel and the bottom bar is ASTM A231 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
540
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 36
14
Fatigue Strength, MPa 170
1000
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Shear Strength, MPa 420
1080
Tensile Strength: Ultimate (UTS), MPa 630
1790
Tensile Strength: Yield (Proof), MPa 200
1570

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1150
420
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
52
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 37
2.3
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 6.2
2.0
Embodied Energy, MJ/kg 89
28
Embodied Water, L/kg 220
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
230
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
64
Strength to Weight: Bending, points 20
42
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 15
53

Alloy Composition

Aluminum (Al), % 0 to 0.025
0
Carbon (C), % 0.040 to 0.080
0.48 to 0.53
Cerium (Ce), % 0.050 to 0.1
0
Chromium (Cr), % 26 to 28
0.8 to 1.1
Iron (Fe), % 36.4 to 42.3
96.7 to 97.7
Manganese (Mn), % 0 to 1.0
0.7 to 0.9
Nickel (Ni), % 31 to 33
0
Niobium (Nb), % 0.6 to 1.0
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.3
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.040
Vanadium (V), % 0
0.15 to 0.3