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EN 1.4378 Stainless Steel vs. EN 1.4849 Stainless Steel

Both EN 1.4378 stainless steel and EN 1.4849 stainless steel are iron alloys. They have 61% of their average alloy composition in common. There are 28 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 1.4378 stainless steel and the bottom bar is EN 1.4849 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
140
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 34
4.5
Fatigue Strength, MPa 340 to 550
120
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 760 to 1130
480
Tensile Strength: Yield (Proof), MPa 430 to 970
250

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Corrosion, °C 410
620
Maximum Temperature: Mechanical, °C 910
1020
Melting Completion (Liquidus), °C 1390
1390
Melting Onset (Solidus), °C 1350
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
15

Otherwise Unclassified Properties

Base Metal Price, % relative 12
42
Density, g/cm3 7.6
8.0
Embodied Carbon, kg CO2/kg material 2.7
7.1
Embodied Energy, MJ/kg 39
100
Embodied Water, L/kg 150
200

Common Calculations

PREN (Pitting Resistance) 23
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 220
18
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 2370
160
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 41
17
Strength to Weight: Bending, points 24 to 31
17
Thermal Shock Resistance, points 16 to 23
11

Alloy Composition

Carbon (C), % 0 to 0.080
0.3 to 0.5
Chromium (Cr), % 17 to 19
18 to 21
Iron (Fe), % 61.2 to 69
32.6 to 43.5
Manganese (Mn), % 11.5 to 14.5
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 2.3 to 3.7
36 to 39
Niobium (Nb), % 0
1.2 to 1.8
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 0 to 1.0
1.0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.030