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S15700 Stainless Steel vs. EN 1.4550 Stainless Steel

Both S15700 stainless steel and EN 1.4550 stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is S15700 stainless steel and the bottom bar is EN 1.4550 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 460
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 1.1 to 29
42
Fatigue Strength, MPa 370 to 770
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 770 to 1070
430
Tensile Strength: Ultimate (UTS), MPa 1180 to 1890
620
Tensile Strength: Yield (Proof), MPa 500 to 1770
230

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 400
480
Maximum Temperature: Mechanical, °C 870
940
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
18
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.4
3.6
Embodied Energy, MJ/kg 47
51
Embodied Water, L/kg 140
140

Common Calculations

PREN (Pitting Resistance) 23
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 270
210
Resilience: Unit (Modulus of Resilience), kJ/m3 640 to 4660
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 42 to 67
22
Strength to Weight: Bending, points 32 to 43
21
Thermal Diffusivity, mm2/s 4.2
4.0
Thermal Shock Resistance, points 39 to 63
14

Alloy Composition

Aluminum (Al), % 0.75 to 1.5
0
Carbon (C), % 0 to 0.090
0 to 0.080
Chromium (Cr), % 14 to 16
17 to 19
Iron (Fe), % 69.6 to 76.8
64.9 to 74
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 6.5 to 7.7
9.0 to 12
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015