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EN 1.4477 Stainless Steel vs. ASTM A229 Spring Steel

Both EN 1.4477 stainless steel and ASTM A229 spring steel are iron alloys. They have 61% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4477 stainless steel and the bottom bar is ASTM A229 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
490 to 550
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 22 to 23
14
Fatigue Strength, MPa 420 to 490
710 to 790
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
72
Shear Strength, MPa 550 to 580
1020 to 1140
Tensile Strength: Ultimate (UTS), MPa 880 to 930
1690 to 1890
Tensile Strength: Yield (Proof), MPa 620 to 730
1100 to 1230

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 13
50
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 20
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.7
1.4
Embodied Energy, MJ/kg 52
19
Embodied Water, L/kg 190
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 190
200 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 940 to 1290
3260 to 4080
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31 to 33
60 to 67
Strength to Weight: Bending, points 26 to 27
40 to 43
Thermal Diffusivity, mm2/s 3.5
14
Thermal Shock Resistance, points 23 to 25
54 to 60

Alloy Composition

Carbon (C), % 0 to 0.030
0.55 to 0.85
Chromium (Cr), % 28 to 30
0
Copper (Cu), % 0 to 0.8
0
Iron (Fe), % 56.6 to 63.6
97.5 to 99
Manganese (Mn), % 0.8 to 1.5
0.3 to 1.2
Molybdenum (Mo), % 1.5 to 2.6
0
Nickel (Ni), % 5.8 to 7.5
0
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.050

Comparable Variants