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EN 1.4020 Stainless Steel vs. S40945 Stainless Steel

Both EN 1.4020 stainless steel and S40945 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4020 stainless steel and the bottom bar is S40945 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 13 to 34
25
Fatigue Strength, MPa 340 to 540
160
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Shear Strength, MPa 510 to 680
270
Tensile Strength: Ultimate (UTS), MPa 770 to 1130
430
Tensile Strength: Yield (Proof), MPa 430 to 950
230

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 890
710
Melting Completion (Liquidus), °C 1390
1450
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
10

Otherwise Unclassified Properties

Base Metal Price, % relative 11
8.0
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.5
2.2
Embodied Energy, MJ/kg 37
31
Embodied Water, L/kg 150
94

Common Calculations

PREN (Pitting Resistance) 23
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 220
89
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2290
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 41
15
Strength to Weight: Bending, points 25 to 32
16
Thermal Shock Resistance, points 16 to 23
15

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 16.5 to 19
10.5 to 11.7
Iron (Fe), % 62.8 to 71.8
85.1 to 89.3
Manganese (Mn), % 11 to 14
0 to 1.0
Nickel (Ni), % 0.5 to 2.5
0 to 0.5
Niobium (Nb), % 0
0.18 to 0.4
Nitrogen (N), % 0.2 to 0.45
0 to 0.030
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.050 to 0.2