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EN 1.7725 Steel vs. EN 1.7376 Steel

Both EN 1.7725 steel and EN 1.7376 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.7725 steel and the bottom bar is EN 1.7376 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250 to 300
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14
20
Fatigue Strength, MPa 390 to 550
320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 830 to 1000
710
Tensile Strength: Yield (Proof), MPa 610 to 860
460

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 440
600
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
26
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
9.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
11

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
6.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.8
2.1
Embodied Energy, MJ/kg 24
29
Embodied Water, L/kg 54
88

Common Calculations

PREN (Pitting Resistance) 2.8
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 130
130
Resilience: Unit (Modulus of Resilience), kJ/m3 980 to 1940
560
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29 to 35
25
Strength to Weight: Bending, points 25 to 28
23
Thermal Diffusivity, mm2/s 11
6.9
Thermal Shock Resistance, points 24 to 29
20

Alloy Composition

Carbon (C), % 0.27 to 0.34
0.12 to 0.19
Chromium (Cr), % 1.3 to 1.7
8.0 to 10
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 95.7 to 97.5
86.2 to 90.6
Manganese (Mn), % 0.6 to 1.0
0.35 to 0.65
Molybdenum (Mo), % 0.3 to 0.5
0.9 to 1.2
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.050 to 0.15
0 to 0.050