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EN 1.4961 Stainless Steel vs. SAE-AISI 1151 Steel

Both EN 1.4961 stainless steel and SAE-AISI 1151 steel are iron alloys. They have 70% 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 1.4961 stainless steel and the bottom bar is SAE-AISI 1151 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
210 to 220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
11 to 17
Fatigue Strength, MPa 190
260 to 410
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Shear Strength, MPa 420
430 to 480
Tensile Strength: Ultimate (UTS), MPa 610
710 to 800
Tensile Strength: Yield (Proof), MPa 220
390 to 660

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 890
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
51
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
10
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
12

Otherwise Unclassified Properties

Base Metal Price, % relative 21
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.0
1.4
Embodied Energy, MJ/kg 57
18
Embodied Water, L/kg 140
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
86 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 120
400 to 1170
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
25 to 28
Strength to Weight: Bending, points 20
22 to 24
Thermal Diffusivity, mm2/s 4.3
14
Thermal Shock Resistance, points 14
22 to 25

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.48 to 0.55
Chromium (Cr), % 15 to 17
0
Iron (Fe), % 65.6 to 72.3
98.3 to 98.7
Manganese (Mn), % 0 to 1.5
0.7 to 1.0
Nickel (Ni), % 12 to 14
0
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0
Sulfur (S), % 0 to 0.015
0.080 to 0.13