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EN 1.6958 Steel vs. EN 1.7383 Steel

Both EN 1.6958 steel and EN 1.7383 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 33 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 1.6958 steel and the bottom bar is EN 1.7383 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
170 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
20 to 23
Fatigue Strength, MPa 700
210 to 270
Impact Strength: V-Notched Charpy, J 63
38
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 700
350 to 380
Tensile Strength: Ultimate (UTS), MPa 1140
560 to 610
Tensile Strength: Yield (Proof), MPa 1070
300 to 400

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 450
460
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 47
39
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
3.9
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.0
1.8
Embodied Energy, MJ/kg 27
23
Embodied Water, L/kg 60
59

Common Calculations

PREN (Pitting Resistance) 2.9
5.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
110
Resilience: Unit (Modulus of Resilience), kJ/m3 3050
240 to 420
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 40
20 to 22
Strength to Weight: Bending, points 31
19 to 20
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 39
16 to 18

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
0 to 0.040
Carbon (C), % 0.25 to 0.3
0.080 to 0.15
Chromium (Cr), % 1.2 to 1.7
2.0 to 2.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 92.6 to 94.5
94.3 to 96.6
Manganese (Mn), % 0.2 to 0.5
0.4 to 0.8
Molybdenum (Mo), % 0.35 to 0.55
0.9 to 1.1
Nickel (Ni), % 3.3 to 3.8
0 to 0.3
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0.15 to 0.3
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.010
Vanadium (V), % 0 to 0.12
0