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EN 1.3967 Stainless Steel vs. EN 1.4374 Stainless Steel

Both EN 1.3967 stainless steel and EN 1.4374 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 84% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.3967 stainless steel and the bottom bar is EN 1.4374 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 22
40
Fatigue Strength, MPa 240
340
Impact Strength: V-Notched Charpy, J 74
90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 690
800
Tensile Strength: Yield (Proof), MPa 350
400

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1070
920
Melting Completion (Liquidus), °C 1430
1400
Melting Onset (Solidus), °C 1380
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 25
14
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.8
2.9
Embodied Energy, MJ/kg 66
42
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 36
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
270
Resilience: Unit (Modulus of Resilience), kJ/m3 310
400
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
29
Strength to Weight: Bending, points 22
25
Thermal Shock Resistance, points 15
17

Alloy Composition

Carbon (C), % 0 to 0.030
0.050 to 0.1
Chromium (Cr), % 20 to 21.5
17.5 to 18.5
Copper (Cu), % 0
0 to 0.4
Iron (Fe), % 50.3 to 57.8
63.5 to 67.9
Manganese (Mn), % 4.0 to 6.0
9.0 to 10
Molybdenum (Mo), % 3.0 to 3.5
0 to 0.5
Nickel (Ni), % 15 to 17
5.0 to 6.0
Niobium (Nb), % 0 to 0.25
0
Nitrogen (N), % 0.2 to 0.35
0.25 to 0.32
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 1.0
0.3 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.030