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EN 1.7767 Steel vs. EN 1.3975 Stainless Steel

Both EN 1.7767 steel and EN 1.3975 stainless steel are iron alloys. They have 66% 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 1.7767 steel and the bottom bar is EN 1.3975 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
27
Fatigue Strength, MPa 320 to 340
230
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Tensile Strength: Ultimate (UTS), MPa 670 to 690
660
Tensile Strength: Yield (Proof), MPa 460 to 500
320

Thermal Properties

Latent Heat of Fusion, J/g 250
340
Maximum Temperature: Mechanical, °C 480
910
Melting Completion (Liquidus), °C 1470
1360
Melting Onset (Solidus), °C 1430
1320
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 4.5
15
Density, g/cm3 7.9
7.5
Embodied Carbon, kg CO2/kg material 2.4
3.3
Embodied Energy, MJ/kg 33
47
Embodied Water, L/kg 64
150

Common Calculations

PREN (Pitting Resistance) 6.4
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
150
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 650
270
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 24
24
Strength to Weight: Bending, points 22
22
Thermal Shock Resistance, points 19 to 20
15

Alloy Composition

Carbon (C), % 0.1 to 0.15
0 to 0.050
Chromium (Cr), % 2.8 to 3.3
16 to 18
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 93.8 to 95.8
58.2 to 65.4
Manganese (Mn), % 0.3 to 0.6
7.0 to 9.0
Molybdenum (Mo), % 0.9 to 1.1
0 to 1.0
Nickel (Ni), % 0 to 0.25
8.0 to 9.0
Niobium (Nb), % 0 to 0.070
0
Nitrogen (N), % 0 to 0.012
0.080 to 0.18
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0 to 0.15
3.5 to 4.5
Sulfur (S), % 0 to 0.0050
0 to 0.030
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0.2 to 0.3
0