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ACI-ASTM CK35MN Steel vs. EN 1.4971 Stainless Steel

Both ACI-ASTM CK35MN steel and EN 1.4971 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 30 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 ACI-ASTM CK35MN steel and the bottom bar is EN 1.4971 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
240
Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 40
34
Fatigue Strength, MPa 270
270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 81
81
Tensile Strength: Ultimate (UTS), MPa 650
800
Tensile Strength: Yield (Proof), MPa 310
340

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 440
570
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 12
13
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 31
70
Density, g/cm3 8.0
8.4
Embodied Carbon, kg CO2/kg material 5.9
7.6
Embodied Energy, MJ/kg 81
110
Embodied Water, L/kg 210
300

Common Calculations

PREN (Pitting Resistance) 48
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
220
Resilience: Unit (Modulus of Resilience), kJ/m3 240
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
26
Strength to Weight: Bending, points 21
23
Thermal Diffusivity, mm2/s 3.3
3.4
Thermal Shock Resistance, points 14
19

Alloy Composition

Carbon (C), % 0 to 0.035
0.080 to 0.16
Chromium (Cr), % 22 to 24
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 0 to 0.4
0
Iron (Fe), % 43.4 to 51.8
24.3 to 37.1
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 6.0 to 6.8
2.5 to 3.5
Nickel (Ni), % 20 to 22
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0.21 to 0.32
0.1 to 0.2
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015
Tungsten (W), % 0
2.0 to 3.0