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EN 1.4057 Stainless Steel vs. EN 1.4646 Stainless Steel

Both EN 1.4057 stainless steel and EN 1.4646 stainless steel are iron alloys. They have 82% 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 1.4057 stainless steel and the bottom bar is EN 1.4646 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11 to 17
34
Fatigue Strength, MPa 320 to 430
340
Impact Strength: V-Notched Charpy, J 16 to 21
90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 520 to 580
500
Tensile Strength: Ultimate (UTS), MPa 840 to 980
750
Tensile Strength: Yield (Proof), MPa 530 to 790
430

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 400
410
Maximum Temperature: Mechanical, °C 850
910
Melting Completion (Liquidus), °C 1440
1390
Melting Onset (Solidus), °C 1390
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 10
17

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.2
2.8
Embodied Energy, MJ/kg 32
41
Embodied Water, L/kg 120
160

Common Calculations

PREN (Pitting Resistance) 16
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 130
220
Resilience: Unit (Modulus of Resilience), kJ/m3 700 to 1610
460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30 to 35
27
Strength to Weight: Bending, points 26 to 28
24
Thermal Shock Resistance, points 30 to 35
16

Alloy Composition

Carbon (C), % 0.12 to 0.22
0.020 to 0.1
Chromium (Cr), % 15 to 17
17 to 19
Copper (Cu), % 0
1.5 to 3.0
Iron (Fe), % 77.7 to 83.4
59 to 67.3
Manganese (Mn), % 0 to 1.5
10.5 to 12.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 1.5 to 2.5
3.5 to 4.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.050
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015