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S40977 Stainless Steel vs. ASTM A414 Steel

Both S40977 stainless steel and ASTM A414 steel are iron alloys. 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 S40977 stainless steel and the bottom bar is ASTM A414 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
110 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
15 to 26
Fatigue Strength, MPa 200
140 to 260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 320
230 to 370
Tensile Strength: Ultimate (UTS), MPa 510
360 to 590
Tensile Strength: Yield (Proof), MPa 310
190 to 350

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 720
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
49 to 50
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.2 to 7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.3 to 8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
2.2
Density, g/cm3 7.8
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 1.9
1.5 to 1.6
Embodied Energy, MJ/kg 27
20 to 22
Embodied Water, L/kg 97
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
69 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 250
100 to 330
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
13 to 21
Strength to Weight: Bending, points 18
14 to 20
Thermal Diffusivity, mm2/s 6.7
13
Thermal Shock Resistance, points 18
11 to 17