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AISI 334 Stainless Steel vs. SAE-AISI 1018 Steel

Both AISI 334 stainless steel and SAE-AISI 1018 steel are iron alloys. They have 60% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AISI 334 stainless steel and the bottom bar is SAE-AISI 1018 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
130 to 140
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
17 to 27
Fatigue Strength, MPa 150
180 to 270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 360
280 to 300
Tensile Strength: Ultimate (UTS), MPa 540
430 to 480
Tensile Strength: Yield (Proof), MPa 190
240 to 400

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1000
400
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 22
1.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.1
1.4
Embodied Energy, MJ/kg 59
18
Embodied Water, L/kg 170
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
75 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 96
150 to 430
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
15 to 17
Strength to Weight: Bending, points 19
16 to 17
Thermal Shock Resistance, points 12
14 to 15

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Carbon (C), % 0 to 0.080
0.15 to 0.2
Chromium (Cr), % 18 to 20
0
Iron (Fe), % 55.7 to 62.7
98.8 to 99.25
Manganese (Mn), % 0 to 1.0
0.6 to 0.9
Nickel (Ni), % 19 to 21
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0 to 0.050
Titanium (Ti), % 0.15 to 0.6
0