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EN 1.4477 Stainless Steel vs. EN 1.4971 Stainless Steel

Both EN 1.4477 stainless steel and EN 1.4971 stainless steel are iron alloys. They have 62% 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 1.4477 stainless steel and the bottom bar is EN 1.4971 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
240
Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 22 to 23
34
Fatigue Strength, MPa 420 to 490
270
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
81
Shear Strength, MPa 550 to 580
530
Tensile Strength: Ultimate (UTS), MPa 880 to 930
800
Tensile Strength: Yield (Proof), MPa 620 to 730
340

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 460
570
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 13
13
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 20
70
Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 3.7
7.6
Embodied Energy, MJ/kg 52
110
Embodied Water, L/kg 190
300

Common Calculations

PREN (Pitting Resistance) 41
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 190
220
Resilience: Unit (Modulus of Resilience), kJ/m3 940 to 1290
280
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
3.4
Thermal Shock Resistance, points 23 to 25
19

Alloy Composition

Carbon (C), % 0 to 0.030
0.080 to 0.16
Chromium (Cr), % 28 to 30
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 0 to 0.8
0
Iron (Fe), % 56.6 to 63.6
24.3 to 37.1
Manganese (Mn), % 0.8 to 1.5
0 to 2.0
Molybdenum (Mo), % 1.5 to 2.6
2.5 to 3.5
Nickel (Ni), % 5.8 to 7.5
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0.3 to 0.4
0.1 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Tungsten (W), % 0
2.0 to 3.0