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SAE-AISI 1074 Steel vs. EN 1.4941 Stainless Steel

Both SAE-AISI 1074 steel and EN 1.4941 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 31 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 SAE-AISI 1074 steel and the bottom bar is EN 1.4941 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 14
39
Fatigue Strength, MPa 290 to 350
180
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 440 to 490
400
Tensile Strength: Ultimate (UTS), MPa 740 to 820
590
Tensile Strength: Yield (Proof), MPa 450 to 570
210

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
940
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
16
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.3
Embodied Energy, MJ/kg 19
47
Embodied Water, L/kg 46
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 94
180
Resilience: Unit (Modulus of Resilience), kJ/m3 550 to 860
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26 to 29
21
Strength to Weight: Bending, points 23 to 25
20
Thermal Diffusivity, mm2/s 14
4.3
Thermal Shock Resistance, points 24 to 26
13

Alloy Composition

Boron (B), % 0
0.0015 to 0.0050
Carbon (C), % 0.7 to 0.8
0.040 to 0.080
Chromium (Cr), % 0
17 to 19
Iron (Fe), % 98.3 to 98.8
65.1 to 73.6
Manganese (Mn), % 0.5 to 0.8
0 to 2.0
Nickel (Ni), % 0
9.0 to 12
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.015
Titanium (Ti), % 0
0.4 to 0.8