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EN 1.4874 Stainless Steel vs. EN 1.4740 Stainless Steel

Both EN 1.4874 stainless steel and EN 1.4740 stainless steel are iron alloys. They have 51% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.4874 stainless steel and the bottom bar is EN 1.4740 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
260
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 6.7
22
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
77

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 560
410
Maximum Temperature: Mechanical, °C 1150
900
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 450
490
Thermal Conductivity, W/m-K 13
18
Thermal Expansion, µm/m-K 15
10

Otherwise Unclassified Properties

Base Metal Price, % relative 70
9.5
Density, g/cm3 8.4
7.6
Embodied Carbon, kg CO2/kg material 7.6
2.3
Embodied Energy, MJ/kg 110
32
Embodied Water, L/kg 290
120

Common Calculations

PREN (Pitting Resistance) 34
18
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Thermal Diffusivity, mm2/s 3.3
4.8

Alloy Composition

Carbon (C), % 0.35 to 0.65
0.3 to 0.5
Chromium (Cr), % 19 to 22
16 to 19
Cobalt (Co), % 18.5 to 22
0
Iron (Fe), % 23 to 38.9
75.4 to 82.7
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.5 to 3.0
0 to 0.5
Nickel (Ni), % 18 to 22
0 to 1.0
Niobium (Nb), % 0.75 to 1.3
0
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 0.030
0 to 0.030
Tungsten (W), % 2.0 to 3.0
0