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AISI 309S Stainless Steel vs. EN 1.1122 Steel

Both AISI 309S stainless steel and EN 1.1122 steel are iron alloys. They have 63% of their average alloy composition in common. There are 32 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 AISI 309S stainless steel and the bottom bar is EN 1.1122 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
100 to 130
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 42
12 to 21
Fatigue Strength, MPa 210
170 to 260
Poisson's Ratio 0.27
0.29
Reduction in Area, % 51
63 to 73
Shear Modulus, GPa 78
73
Shear Strength, MPa 400
240 to 290
Tensile Strength: Ultimate (UTS), MPa 580
340 to 460
Tensile Strength: Yield (Proof), MPa 230
240 to 370

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1080
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 19
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.6
1.4
Embodied Energy, MJ/kg 51
18
Embodied Water, L/kg 170
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
36 to 89
Resilience: Unit (Modulus of Resilience), kJ/m3 140
160 to 360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
12 to 16
Strength to Weight: Bending, points 20
14 to 17
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 13
11 to 15

Alloy Composition

Carbon (C), % 0 to 0.080
0.080 to 0.12
Chromium (Cr), % 22 to 24
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 58.1 to 66
98.7 to 99.62
Manganese (Mn), % 0 to 2.0
0.3 to 0.6
Nickel (Ni), % 12 to 15
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 0.75
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.025