MakeItFrom.com
Menu (ESC)

EN 1.6771 Steel vs. S21800 Stainless Steel

Both EN 1.6771 steel and S21800 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.6771 steel and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 350
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.0 to 8.7
40
Fatigue Strength, MPa 440 to 680
330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 930 to 1180
740
Tensile Strength: Yield (Proof), MPa 740 to 1140
390

Thermal Properties

Latent Heat of Fusion, J/g 250
340
Maximum Temperature: Mechanical, °C 440
900
Melting Completion (Liquidus), °C 1460
1360
Melting Onset (Solidus), °C 1420
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
15
Density, g/cm3 7.9
7.5
Embodied Carbon, kg CO2/kg material 1.9
3.1
Embodied Energy, MJ/kg 25
45
Embodied Water, L/kg 58
150

Common Calculations

PREN (Pitting Resistance) 2.5
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 75 to 93
250
Resilience: Unit (Modulus of Resilience), kJ/m3 1460 to 3450
390
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 33 to 41
27
Strength to Weight: Bending, points 27 to 31
24
Thermal Shock Resistance, points 27 to 35
17

Alloy Composition

Carbon (C), % 0.27 to 0.33
0 to 0.1
Chromium (Cr), % 0.8 to 1.2
16 to 18
Iron (Fe), % 92.2 to 95
59.1 to 65.4
Manganese (Mn), % 0.6 to 1.0
7.0 to 9.0
Molybdenum (Mo), % 0.3 to 0.6
0
Nickel (Ni), % 3.0 to 4.0
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0 to 0.030
0 to 0.060
Silicon (Si), % 0 to 0.6
3.5 to 4.5
Sulfur (S), % 0 to 0.020
0 to 0.030