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EN 1.4438 Stainless Steel vs. EN 1.4567 Stainless Steel

Both EN 1.4438 stainless steel and EN 1.4567 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4438 stainless steel and the bottom bar is EN 1.4567 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190 to 240
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 41
22 to 51
Fatigue Strength, MPa 220
190 to 260
Impact Strength: V-Notched Charpy, J 90
91 to 110
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Shear Strength, MPa 420
390 to 490
Tensile Strength: Ultimate (UTS), MPa 620
550 to 780
Tensile Strength: Yield (Proof), MPa 250
200 to 390

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 1000
930
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
11
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 22
16
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.4
3.1
Embodied Energy, MJ/kg 60
43
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 31
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
150 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 150
100 to 400
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
19 to 27
Strength to Weight: Bending, points 20
19 to 24
Thermal Diffusivity, mm2/s 3.7
3.0
Thermal Shock Resistance, points 14
12 to 17

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.040
Chromium (Cr), % 17.5 to 19.5
17 to 19
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 57.3 to 66.5
63.3 to 71.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 13 to 16
8.5 to 10.5
Nitrogen (N), % 0 to 0.1
0 to 0.1
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015