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EN 1.6956 Steel vs. EN 1.4035 Stainless Steel

Both EN 1.6956 steel and EN 1.4035 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 32 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 1.6956 steel and the bottom bar is EN 1.4035 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 370
220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 9.6
18
Fatigue Strength, MPa 680
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 730
430
Tensile Strength: Ultimate (UTS), MPa 1230
690
Tensile Strength: Yield (Proof), MPa 1120
400

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 440
760
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
29
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
7.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 2.2
2.0
Embodied Energy, MJ/kg 31
27
Embodied Water, L/kg 60
100

Common Calculations

PREN (Pitting Resistance) 2.8
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 3320
420
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 43
25
Strength to Weight: Bending, points 32
22
Thermal Diffusivity, mm2/s 12
7.8
Thermal Shock Resistance, points 36
25

Alloy Composition

Carbon (C), % 0.28 to 0.38
0.43 to 0.5
Chromium (Cr), % 1.0 to 1.7
12.5 to 14
Iron (Fe), % 92.4 to 95.3
82.1 to 86.9
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 0.3 to 0.6
0
Nickel (Ni), % 2.9 to 3.8
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0.15 to 0.35
Vanadium (V), % 0.080 to 0.25
0