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ASTM A231 Spring Steel vs. EN 1.3967 Stainless Steel

Both ASTM A231 spring steel and EN 1.3967 stainless steel are iron alloys. They have 56% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ASTM A231 spring steel and the bottom bar is EN 1.3967 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 540
200
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14
22
Fatigue Strength, MPa 1000
240
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 1790
690
Tensile Strength: Yield (Proof), MPa 1570
350

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 420
1070
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
25
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.0
4.8
Embodied Energy, MJ/kg 28
66
Embodied Water, L/kg 51
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 64
24
Strength to Weight: Bending, points 42
22
Thermal Shock Resistance, points 53
15

Alloy Composition

Carbon (C), % 0.48 to 0.53
0 to 0.030
Chromium (Cr), % 0.8 to 1.1
20 to 21.5
Iron (Fe), % 96.7 to 97.7
50.3 to 57.8
Manganese (Mn), % 0.7 to 0.9
4.0 to 6.0
Molybdenum (Mo), % 0
3.0 to 3.5
Nickel (Ni), % 0
15 to 17
Niobium (Nb), % 0
0 to 0.25
Nitrogen (N), % 0
0.2 to 0.35
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.010
Vanadium (V), % 0.15 to 0.3
0