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EN 1.4988 Stainless Steel vs. S64512 Stainless Steel

Both EN 1.4988 stainless steel and S64512 stainless steel are iron alloys. They have 83% 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 1.4988 stainless steel and the bottom bar is S64512 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
330
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
17
Fatigue Strength, MPa 230
540
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 430
700
Tensile Strength: Ultimate (UTS), MPa 640
1140
Tensile Strength: Yield (Proof), MPa 290
890

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 520
390
Maximum Temperature: Mechanical, °C 920
750
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
28
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
4.1

Otherwise Unclassified Properties

Base Metal Price, % relative 23
10
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 6.0
3.3
Embodied Energy, MJ/kg 89
47
Embodied Water, L/kg 150
110

Common Calculations

PREN (Pitting Resistance) 22
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
180
Resilience: Unit (Modulus of Resilience), kJ/m3 210
2020
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
40
Strength to Weight: Bending, points 21
31
Thermal Diffusivity, mm2/s 4.0
7.5
Thermal Shock Resistance, points 14
42

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.080 to 0.15
Chromium (Cr), % 15.5 to 17.5
11 to 12.5
Iron (Fe), % 62.1 to 69.5
80.6 to 84.7
Manganese (Mn), % 0 to 1.5
0.5 to 0.9
Molybdenum (Mo), % 1.1 to 1.5
1.5 to 2.0
Nickel (Ni), % 12.5 to 14.5
2.0 to 3.0
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0.010 to 0.050
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.3 to 0.6
0 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.025
Vanadium (V), % 0.6 to 0.85
0.25 to 0.4