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EN 1.4438 Stainless Steel vs. EN 1.4805 Stainless Steel

Both EN 1.4438 stainless steel and EN 1.4805 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4438 stainless steel and the bottom bar is EN 1.4805 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 41
9.0
Fatigue Strength, MPa 220
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 620
490
Tensile Strength: Yield (Proof), MPa 250
250

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 1000
1000
Melting Completion (Liquidus), °C 1450
1390
Melting Onset (Solidus), °C 1400
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
14
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 22
26
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.4
4.7
Embodied Energy, MJ/kg 60
66
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 31
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
37
Resilience: Unit (Modulus of Resilience), kJ/m3 150
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 3.7
3.7
Thermal Shock Resistance, points 14
11

Alloy Composition

Carbon (C), % 0 to 0.030
0.2 to 0.5
Chromium (Cr), % 17.5 to 19.5
19 to 23
Iron (Fe), % 57.3 to 66.5
44.9 to 56.8
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 3.0 to 4.0
0 to 0.5
Nickel (Ni), % 13 to 16
23 to 27
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
1.0 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.030