MakeItFrom.com
Menu (ESC)

EN 1.4988 Stainless Steel vs. AISI 446 Stainless Steel

Both EN 1.4988 stainless steel and AISI 446 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 33 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 AISI 446 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
23
Fatigue Strength, MPa 230
200
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
79
Shear Strength, MPa 430
360
Tensile Strength: Ultimate (UTS), MPa 640
570
Tensile Strength: Yield (Proof), MPa 290
300

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 520
440
Maximum Temperature: Mechanical, °C 920
1180
Melting Completion (Liquidus), °C 1450
1510
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 23
12
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 6.0
2.4
Embodied Energy, MJ/kg 89
35
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 22
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
110
Resilience: Unit (Modulus of Resilience), kJ/m3 210
230
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 23
21
Strength to Weight: Bending, points 21
20
Thermal Diffusivity, mm2/s 4.0
4.6
Thermal Shock Resistance, points 14
19

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.2
Chromium (Cr), % 15.5 to 17.5
23 to 27
Iron (Fe), % 62.1 to 69.5
69.2 to 77
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 1.1 to 1.5
0
Nickel (Ni), % 12.5 to 14.5
0 to 0.75
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0 to 0.25
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0.6 to 0.85
0