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EN 1.4988 Stainless Steel vs. SAE-AISI 1095 Steel

Both EN 1.4988 stainless steel and SAE-AISI 1095 steel are iron alloys. They have 66% of their average alloy composition in common. There are 31 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 1.4988 stainless steel and the bottom bar is SAE-AISI 1095 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
200 to 270
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
10 to 11
Fatigue Strength, MPa 230
310 to 370
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Shear Strength, MPa 430
400 to 540
Tensile Strength: Ultimate (UTS), MPa 640
680 to 900
Tensile Strength: Yield (Proof), MPa 290
500 to 590

Thermal Properties

Latent Heat of Fusion, J/g 290
240
Maximum Temperature: Mechanical, °C 920
400
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
47
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
9.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
11

Otherwise Unclassified Properties

Base Metal Price, % relative 23
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 6.0
1.4
Embodied Energy, MJ/kg 89
19
Embodied Water, L/kg 150
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
63 to 84
Resilience: Unit (Modulus of Resilience), kJ/m3 210
660 to 930
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23
24 to 32
Strength to Weight: Bending, points 21
22 to 26
Thermal Diffusivity, mm2/s 4.0
13
Thermal Shock Resistance, points 14
22 to 29

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.9 to 1.0
Chromium (Cr), % 15.5 to 17.5
0
Iron (Fe), % 62.1 to 69.5
98.4 to 98.8
Manganese (Mn), % 0 to 1.5
0.3 to 0.5
Molybdenum (Mo), % 1.1 to 1.5
0
Nickel (Ni), % 12.5 to 14.5
0
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0
Sulfur (S), % 0 to 0.015
0 to 0.050
Vanadium (V), % 0.6 to 0.85
0