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EN 1.4807 Stainless Steel vs. EN 1.4825 Stainless Steel

Both EN 1.4807 stainless steel and EN 1.4825 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 1.4807 stainless steel and the bottom bar is EN 1.4825 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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