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EN 1.6958 Steel vs. EN 1.4982 Stainless Steel

Both EN 1.6958 steel and EN 1.4982 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 33 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 1.6958 steel and the bottom bar is EN 1.4982 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
230
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
28
Fatigue Strength, MPa 700
420
Impact Strength: V-Notched Charpy, J 63
57
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 700
490
Tensile Strength: Ultimate (UTS), MPa 1140
750
Tensile Strength: Yield (Proof), MPa 1070
570

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 450
860
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 47
13
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
22
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.0
4.9
Embodied Energy, MJ/kg 27
71
Embodied Water, L/kg 60
150

Common Calculations

PREN (Pitting Resistance) 2.9
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
190
Resilience: Unit (Modulus of Resilience), kJ/m3 3050
830
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 40
27
Strength to Weight: Bending, points 31
23
Thermal Diffusivity, mm2/s 13
3.4
Thermal Shock Resistance, points 39
17

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
0
Boron (B), % 0
0.0030 to 0.0090
Carbon (C), % 0.25 to 0.3
0.070 to 0.13
Chromium (Cr), % 1.2 to 1.7
14 to 16
Iron (Fe), % 92.6 to 94.5
61.8 to 69.7
Manganese (Mn), % 0.2 to 0.5
5.5 to 7.0
Molybdenum (Mo), % 0.35 to 0.55
0.8 to 1.2
Nickel (Ni), % 3.3 to 3.8
9.0 to 11
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0.15 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0 to 0.12
0.15 to 0.4