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EN 1.7767 Steel vs. EN 1.4922 Stainless Steel

Both EN 1.7767 steel and EN 1.4922 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, 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 1.4922 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
16
Fatigue Strength, MPa 320 to 340
330
Impact Strength: V-Notched Charpy, J 46
38
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Shear Strength, MPa 420 to 430
470
Tensile Strength: Ultimate (UTS), MPa 670 to 690
770
Tensile Strength: Yield (Proof), MPa 460 to 500
550

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 480
720
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
24
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 4.5
7.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.4
2.8
Embodied Energy, MJ/kg 33
40
Embodied Water, L/kg 64
100

Common Calculations

PREN (Pitting Resistance) 6.4
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 650
770
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
27
Strength to Weight: Bending, points 22
24
Thermal Diffusivity, mm2/s 11
6.5
Thermal Shock Resistance, points 19 to 20
27

Alloy Composition

Carbon (C), % 0.1 to 0.15
0.17 to 0.23
Chromium (Cr), % 2.8 to 3.3
10 to 12.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 93.8 to 95.8
83.5 to 88.2
Manganese (Mn), % 0.3 to 0.6
0.3 to 1.0
Molybdenum (Mo), % 0.9 to 1.1
0.8 to 1.2
Nickel (Ni), % 0 to 0.25
0.3 to 0.8
Niobium (Nb), % 0 to 0.070
0
Nitrogen (N), % 0 to 0.012
0
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0 to 0.15
0 to 0.4
Sulfur (S), % 0 to 0.0050
0 to 0.015
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0.2 to 0.3
0.2 to 0.35