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EN 1.6781 Steel vs. S28200 Stainless Steel

Both EN 1.6781 steel and S28200 stainless steel are iron alloys. They have 64% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.6781 steel and the bottom bar is S28200 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
260
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
45
Fatigue Strength, MPa 450
430
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 830
870
Tensile Strength: Yield (Proof), MPa 680
460

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 450
900
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1330
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
18

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
12
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 1.9
2.8
Embodied Energy, MJ/kg 25
41
Embodied Water, L/kg 60
160

Common Calculations

PREN (Pitting Resistance) 3.3
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
330
Resilience: Unit (Modulus of Resilience), kJ/m3 1220
540
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 29
32
Strength to Weight: Bending, points 25
27
Thermal Shock Resistance, points 24
17

Alloy Composition

Carbon (C), % 0.15 to 0.19
0 to 0.15
Chromium (Cr), % 1.3 to 1.8
17 to 19
Copper (Cu), % 0
0.75 to 1.3
Iron (Fe), % 92.6 to 94.6
57.7 to 64.1
Manganese (Mn), % 0.55 to 0.8
17 to 19
Molybdenum (Mo), % 0.45 to 0.6
0.75 to 1.3
Nickel (Ni), % 3.0 to 3.5
0
Nitrogen (N), % 0
0.4 to 0.6
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030