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EN 1.4122 Stainless Steel vs. EN 1.4849 Stainless Steel

Both EN 1.4122 stainless steel and EN 1.4849 stainless steel are iron alloys. They have 57% of their average alloy composition in common. There are 29 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 1.4122 stainless steel and the bottom bar is EN 1.4849 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14
4.5
Fatigue Strength, MPa 260 to 360
120
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 790 to 850
480
Tensile Strength: Yield (Proof), MPa 450 to 630
250

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Corrosion, °C 400
620
Maximum Temperature: Mechanical, °C 870
1020
Melting Completion (Liquidus), °C 1440
1390
Melting Onset (Solidus), °C 1400
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 10
15

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
42
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.4
7.1
Embodied Energy, MJ/kg 33
100
Embodied Water, L/kg 120
200

Common Calculations

PREN (Pitting Resistance) 20
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 93 to 110
18
Resilience: Unit (Modulus of Resilience), kJ/m3 520 to 1000
160
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 31
17
Strength to Weight: Bending, points 25 to 26
17
Thermal Diffusivity, mm2/s 4.0
3.2
Thermal Shock Resistance, points 28 to 30
11

Alloy Composition

Carbon (C), % 0.33 to 0.45
0.3 to 0.5
Chromium (Cr), % 15.5 to 17.5
18 to 21
Iron (Fe), % 77.2 to 83.4
32.6 to 43.5
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0.8 to 1.3
0 to 0.5
Nickel (Ni), % 0 to 1.0
36 to 39
Niobium (Nb), % 0
1.2 to 1.8
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
1.0 to 2.5
Sulfur (S), % 0 to 0.015
0 to 0.030