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EN 1.4825 Stainless Steel vs. EN 1.4807 Stainless Steel

Both EN 1.4825 stainless steel and EN 1.4807 stainless steel are iron alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 72% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4825 stainless steel and the bottom bar is EN 1.4807 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
140
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
4.5
Fatigue Strength, MPa 160
120
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 510
480
Tensile Strength: Yield (Proof), MPa 260
250

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Corrosion, °C 410
600
Maximum Temperature: Mechanical, °C 900
1000
Melting Completion (Liquidus), °C 1410
1390
Melting Onset (Solidus), °C 1370
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 15
39
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 3.1
6.8
Embodied Energy, MJ/kg 43
97
Embodied Water, L/kg 140
190

Common Calculations

PREN (Pitting Resistance) 19
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 72
18
Resilience: Unit (Modulus of Resilience), kJ/m3 170
160
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
17
Strength to Weight: Bending, points 18
17
Thermal Diffusivity, mm2/s 4.0
3.2
Thermal Shock Resistance, points 12
12

Alloy Composition

Carbon (C), % 0.15 to 0.35
0.3 to 0.5
Chromium (Cr), % 17 to 19
17 to 20
Iron (Fe), % 65.6 to 74.4
36.6 to 46.7
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 8.0 to 10
34 to 36
Niobium (Nb), % 0
1.0 to 1.8
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0.5 to 2.5
1.0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.030