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EN 1.4849 Stainless Steel vs. EN 1.4859 Stainless Steel

Both EN 1.4849 stainless steel and EN 1.4859 stainless steel are iron alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 93% 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 1.4849 stainless steel and the bottom bar is EN 1.4859 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 4.5
23
Fatigue Strength, MPa 120
140
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 480
490
Tensile Strength: Yield (Proof), MPa 250
210

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Maximum Temperature: Corrosion, °C 620
560
Maximum Temperature: Mechanical, °C 1020
1050
Melting Completion (Liquidus), °C 1390
1410
Melting Onset (Solidus), °C 1340
1360
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
13
Thermal Expansion, µm/m-K 15
16

Otherwise Unclassified Properties

Base Metal Price, % relative 42
36
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 7.1
6.2
Embodied Energy, MJ/kg 100
88
Embodied Water, L/kg 200
190

Common Calculations

PREN (Pitting Resistance) 20
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 18
91
Resilience: Unit (Modulus of Resilience), kJ/m3 160
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
17
Strength to Weight: Bending, points 17
17
Thermal Diffusivity, mm2/s 3.2
3.4
Thermal Shock Resistance, points 11
11

Alloy Composition

Carbon (C), % 0.3 to 0.5
0.050 to 0.15
Chromium (Cr), % 18 to 21
19 to 21
Iron (Fe), % 32.6 to 43.5
40.3 to 49
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 36 to 39
31 to 33
Niobium (Nb), % 1.2 to 1.8
0.5 to 1.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 1.0 to 2.5
0.5 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030