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EN 1.4477 Stainless Steel vs. EN 1.4986 Stainless Steel

Both EN 1.4477 stainless steel and EN 1.4986 stainless steel are iron alloys. They have 86% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4477 stainless steel and the bottom bar is EN 1.4986 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
230
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 22 to 23
18
Fatigue Strength, MPa 420 to 490
350
Impact Strength: V-Notched Charpy, J 110
57
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
77
Shear Strength, MPa 550 to 580
460
Tensile Strength: Ultimate (UTS), MPa 880 to 930
750
Tensile Strength: Yield (Proof), MPa 620 to 730
560

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 460
520
Maximum Temperature: Mechanical, °C 1100
940
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 13
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 20
25
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.7
4.8
Embodied Energy, MJ/kg 52
67
Embodied Water, L/kg 190
150

Common Calculations

PREN (Pitting Resistance) 41
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 190
120
Resilience: Unit (Modulus of Resilience), kJ/m3 940 to 1290
790
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31 to 33
26
Strength to Weight: Bending, points 26 to 27
23
Thermal Diffusivity, mm2/s 3.5
4.0
Thermal Shock Resistance, points 23 to 25
16

Alloy Composition

Boron (B), % 0
0.050 to 0.1
Carbon (C), % 0 to 0.030
0.040 to 0.1
Chromium (Cr), % 28 to 30
15.5 to 17.5
Copper (Cu), % 0 to 0.8
0
Iron (Fe), % 56.6 to 63.6
59.4 to 66.6
Manganese (Mn), % 0.8 to 1.5
0 to 1.5
Molybdenum (Mo), % 1.5 to 2.6
1.6 to 2.0
Nickel (Ni), % 5.8 to 7.5
15.5 to 17.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.5
0.3 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030