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EN 1.4724 Stainless Steel vs. EN 1.4951 Stainless Steel

Both EN 1.4724 stainless steel and EN 1.4951 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4724 stainless steel and the bottom bar is EN 1.4951 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
38
Fatigue Strength, MPa 170
190
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
79
Shear Strength, MPa 340
430
Tensile Strength: Ultimate (UTS), MPa 550
630
Tensile Strength: Yield (Proof), MPa 280
220

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 390
450
Maximum Temperature: Mechanical, °C 850
1100
Melting Completion (Liquidus), °C 1430
1410
Melting Onset (Solidus), °C 1390
1360
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
25
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
4.3
Embodied Energy, MJ/kg 28
61
Embodied Water, L/kg 110
190

Common Calculations

PREN (Pitting Resistance) 13
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 73
190
Resilience: Unit (Modulus of Resilience), kJ/m3 210
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
22
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 5.6
3.9
Thermal Shock Resistance, points 19
14

Alloy Composition

Aluminum (Al), % 0.7 to 1.2
0
Carbon (C), % 0 to 0.12
0.040 to 0.080
Chromium (Cr), % 12 to 14
24 to 26
Iron (Fe), % 82.2 to 86.6
49.1 to 57
Manganese (Mn), % 0 to 1.0
0 to 2.0
Nickel (Ni), % 0
19 to 22
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0.7 to 1.4
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.015