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EN 1.6958 Steel vs. AISI 310S Stainless Steel

Both EN 1.6958 steel and AISI 310S stainless steel are iron alloys. They have 58% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.6958 steel and the bottom bar is AISI 310S stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
170 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
34 to 44
Fatigue Strength, MPa 700
250 to 280
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Shear Strength, MPa 700
420 to 470
Tensile Strength: Ultimate (UTS), MPa 1140
600 to 710
Tensile Strength: Yield (Proof), MPa 1070
270 to 350

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 450
1100
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 47
16
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
25
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.0
4.3
Embodied Energy, MJ/kg 27
61
Embodied Water, L/kg 60
190

Common Calculations

PREN (Pitting Resistance) 2.9
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
200 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 3050
190 to 310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 40
21 to 25
Strength to Weight: Bending, points 31
20 to 22
Thermal Diffusivity, mm2/s 13
4.1
Thermal Shock Resistance, points 39
14 to 16

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
0
Carbon (C), % 0.25 to 0.3
0 to 0.080
Chromium (Cr), % 1.2 to 1.7
24 to 26
Iron (Fe), % 92.6 to 94.5
48.3 to 57
Manganese (Mn), % 0.2 to 0.5
0 to 2.0
Molybdenum (Mo), % 0.35 to 0.55
0
Nickel (Ni), % 3.3 to 3.8
19 to 22
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0.15 to 0.3
0 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0 to 0.12
0