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S15700 Stainless Steel vs. EN 1.6956 Steel

Both S15700 stainless steel and EN 1.6956 steel are iron alloys. They have 79% 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 S15700 stainless steel and the bottom bar is EN 1.6956 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 460
370
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 1.1 to 29
9.6
Fatigue Strength, MPa 370 to 770
680
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 770 to 1070
730
Tensile Strength: Ultimate (UTS), MPa 1180 to 1890
1230
Tensile Strength: Yield (Proof), MPa 500 to 1770
1120

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 870
440
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
46
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 15
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.4
2.2
Embodied Energy, MJ/kg 47
31
Embodied Water, L/kg 140
60

Common Calculations

PREN (Pitting Resistance) 23
2.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 270
110
Resilience: Unit (Modulus of Resilience), kJ/m3 640 to 4660
3320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 42 to 67
43
Strength to Weight: Bending, points 32 to 43
32
Thermal Diffusivity, mm2/s 4.2
12
Thermal Shock Resistance, points 39 to 63
36

Alloy Composition

Aluminum (Al), % 0.75 to 1.5
0
Carbon (C), % 0 to 0.090
0.28 to 0.38
Chromium (Cr), % 14 to 16
1.0 to 1.7
Iron (Fe), % 69.6 to 76.8
92.4 to 95.3
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Molybdenum (Mo), % 2.0 to 3.0
0.3 to 0.6
Nickel (Ni), % 6.5 to 7.7
2.9 to 3.8
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035
Vanadium (V), % 0
0.080 to 0.25