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EN 1.7338 Steel vs. EN 1.6932 Steel

Both EN 1.7338 steel and EN 1.6932 steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.7338 steel and the bottom bar is EN 1.6932 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
270
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
14
Fatigue Strength, MPa 220
460
Impact Strength: V-Notched Charpy, J 38
40
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 310
540
Tensile Strength: Ultimate (UTS), MPa 490
900
Tensile Strength: Yield (Proof), MPa 300
720

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 430
440
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
45
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 3.1
4.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
2.0
Embodied Energy, MJ/kg 21
27
Embodied Water, L/kg 53
56

Common Calculations

PREN (Pitting Resistance) 3.1
2.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 97
110
Resilience: Unit (Modulus of Resilience), kJ/m3 240
1370
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
32
Strength to Weight: Bending, points 18
26
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 14
26

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0 to 0.15
0.24 to 0.32
Chromium (Cr), % 1.0 to 1.5
1.0 to 1.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 95.4 to 97.8
94.5 to 96.4
Manganese (Mn), % 0.3 to 0.6
0.15 to 0.4
Molybdenum (Mo), % 0.45 to 0.65
0.35 to 0.55
Nickel (Ni), % 0 to 0.3
1.8 to 2.1
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0.5 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.035
Vanadium (V), % 0
0.050 to 0.15