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S41045 Stainless Steel vs. EN 1.4971 Stainless Steel

Both S41045 stainless steel and EN 1.4971 stainless steel are iron alloys. They have 45% 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 S41045 stainless steel and the bottom bar is EN 1.4971 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
240
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 25
34
Fatigue Strength, MPa 160
270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
81
Shear Strength, MPa 280
530
Tensile Strength: Ultimate (UTS), MPa 430
800
Tensile Strength: Yield (Proof), MPa 230
340

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 430
570
Maximum Temperature: Mechanical, °C 740
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 29
13
Thermal Expansion, µm/m-K 10
15

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
70
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 2.2
7.6
Embodied Energy, MJ/kg 31
110
Embodied Water, L/kg 100
300

Common Calculations

PREN (Pitting Resistance) 13
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
220
Resilience: Unit (Modulus of Resilience), kJ/m3 140
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 16
26
Strength to Weight: Bending, points 16
23
Thermal Diffusivity, mm2/s 7.8
3.4
Thermal Shock Resistance, points 16
19

Alloy Composition

Carbon (C), % 0 to 0.030
0.080 to 0.16
Chromium (Cr), % 12 to 13
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Iron (Fe), % 83.8 to 88
24.3 to 37.1
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0 to 0.5
19 to 21
Niobium (Nb), % 0 to 0.6
0.75 to 1.3
Nitrogen (N), % 0 to 0.030
0.1 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 0
2.0 to 3.0