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EN 1.4981 Stainless Steel vs. EN 1.6570 Steel

Both EN 1.4981 stainless steel and EN 1.6570 steel are iron alloys. They have 68% 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 1.4981 stainless steel and the bottom bar is EN 1.6570 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
270 to 340
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
11 to 17
Fatigue Strength, MPa 210
500 to 660
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 610
910 to 1130
Tensile Strength: Yield (Proof), MPa 240
760 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
440
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
40
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 25
3.9
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.8
1.7
Embodied Energy, MJ/kg 67
23
Embodied Water, L/kg 150
56

Common Calculations

PREN (Pitting Resistance) 22
2.5
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
120 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 150
1520 to 3010
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
32 to 40
Strength to Weight: Bending, points 20
27 to 31
Thermal Diffusivity, mm2/s 4.3
11
Thermal Shock Resistance, points 14
27 to 33

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.28 to 0.35
Chromium (Cr), % 15.5 to 17.5
1.0 to 1.4
Iron (Fe), % 59.6 to 66.7
94 to 96.2
Manganese (Mn), % 0 to 1.5
0.6 to 1.0
Molybdenum (Mo), % 1.6 to 2.0
0.3 to 0.5
Nickel (Ni), % 15.5 to 17.5
1.6 to 2.1
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0.3 to 0.6
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.015