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EN 1.4951 Stainless Steel vs. EN 1.4527 Stainless Steel

Both EN 1.4951 stainless steel and EN 1.4527 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 85% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4951 stainless steel and the bottom bar is EN 1.4527 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 38
40
Fatigue Strength, MPa 190
170
Impact Strength: V-Notched Charpy, J 98
67
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 630
480
Tensile Strength: Yield (Proof), MPa 220
190

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 450
430
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1410
1410
Melting Onset (Solidus), °C 1360
1360
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 25
32
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 4.3
5.6
Embodied Energy, MJ/kg 61
78
Embodied Water, L/kg 190
210

Common Calculations

PREN (Pitting Resistance) 26
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
150
Resilience: Unit (Modulus of Resilience), kJ/m3 130
95
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 21
17
Thermal Diffusivity, mm2/s 3.9
4.0
Thermal Shock Resistance, points 14
12

Alloy Composition

Carbon (C), % 0.040 to 0.080
0 to 0.060
Chromium (Cr), % 24 to 26
19 to 22
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 49.1 to 57
37.4 to 48.5
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 19 to 22
27.5 to 30.5
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.030