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EN 1.4951 Stainless Steel vs. EN 1.4652 Stainless Steel

Both EN 1.4951 stainless steel and EN 1.4652 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 88% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4951 stainless steel and the bottom bar is EN 1.4652 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
270
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 38
45
Fatigue Strength, MPa 190
450
Impact Strength: V-Notched Charpy, J 98
90
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
81
Shear Strength, MPa 430
610
Tensile Strength: Ultimate (UTS), MPa 630
880
Tensile Strength: Yield (Proof), MPa 220
490

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 450
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 15
9.8
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 25
34
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 4.3
6.4
Embodied Energy, MJ/kg 61
87
Embodied Water, L/kg 190
220

Common Calculations

PREN (Pitting Resistance) 26
57
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
340
Resilience: Unit (Modulus of Resilience), kJ/m3 130
570
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
30
Strength to Weight: Bending, points 21
25
Thermal Diffusivity, mm2/s 3.9
2.6
Thermal Shock Resistance, points 14
20

Alloy Composition

Carbon (C), % 0.040 to 0.080
0 to 0.020
Chromium (Cr), % 24 to 26
23 to 25
Copper (Cu), % 0
0.3 to 0.6
Iron (Fe), % 49.1 to 57
38.3 to 46.3
Manganese (Mn), % 0 to 2.0
2.0 to 4.0
Molybdenum (Mo), % 0
7.0 to 8.0
Nickel (Ni), % 19 to 22
21 to 23
Nitrogen (N), % 0 to 0.1
0.45 to 0.55
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 0.7
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.0050