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EN 1.4857 Stainless Steel vs. EN 1.4874 Stainless Steel

Both EN 1.4857 stainless steel and EN 1.4874 stainless steel are iron alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 74% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4857 stainless steel and the bottom bar is EN 1.4874 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
140
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 6.7
6.7
Fatigue Strength, MPa 120
180
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 500
480
Tensile Strength: Yield (Proof), MPa 250
360

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Corrosion, °C 440
560
Maximum Temperature: Mechanical, °C 1100
1150
Melting Completion (Liquidus), °C 1370
1450
Melting Onset (Solidus), °C 1320
1400
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 13
13
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 34
70
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 5.7
7.6
Embodied Energy, MJ/kg 81
110
Embodied Water, L/kg 220
290

Common Calculations

PREN (Pitting Resistance) 26
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
29
Resilience: Unit (Modulus of Resilience), kJ/m3 150
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
16
Strength to Weight: Bending, points 18
16
Thermal Diffusivity, mm2/s 3.4
3.3
Thermal Shock Resistance, points 11
11

Alloy Composition

Carbon (C), % 0.3 to 0.5
0.35 to 0.65
Chromium (Cr), % 24 to 27
19 to 22
Cobalt (Co), % 0
18.5 to 22
Iron (Fe), % 31.4 to 41.7
23 to 38.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
2.5 to 3.0
Nickel (Ni), % 33 to 36
18 to 22
Niobium (Nb), % 0
0.75 to 1.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 1.0 to 2.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
2.0 to 3.0