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EN 1.4749 Stainless Steel vs. SAE-AISI 1070 Steel

Both EN 1.4749 stainless steel and SAE-AISI 1070 steel are iron alloys. They have 72% 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 1.4749 stainless steel and the bottom bar is SAE-AISI 1070 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190 to 230
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 16
10 to 13
Fatigue Strength, MPa 190
270 to 350
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
72
Shear Strength, MPa 370
380 to 460
Tensile Strength: Ultimate (UTS), MPa 600
640 to 760
Tensile Strength: Yield (Proof), MPa 320
420 to 560

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 17
50
Thermal Expansion, µm/m-K 9.6
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
10
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
1.8
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.5
1.4
Embodied Energy, MJ/kg 36
19
Embodied Water, L/kg 160
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
59 to 86
Resilience: Unit (Modulus of Resilience), kJ/m3 250
470 to 850
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 22
23 to 27
Strength to Weight: Bending, points 21
21 to 24
Thermal Diffusivity, mm2/s 4.6
14
Thermal Shock Resistance, points 22
21 to 25

Alloy Composition

Carbon (C), % 0.15 to 0.2
0.65 to 0.75
Chromium (Cr), % 26 to 29
0
Iron (Fe), % 68.5 to 73.7
98.3 to 98.8
Manganese (Mn), % 0 to 1.0
0.6 to 0.9
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0 to 0.050