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EN 1.4646 Stainless Steel vs. EN 1.4630 Stainless Steel

Both EN 1.4646 stainless steel and EN 1.4630 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4646 stainless steel and the bottom bar is EN 1.4630 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
23
Fatigue Strength, MPa 340
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 500
300
Tensile Strength: Ultimate (UTS), MPa 750
480
Tensile Strength: Yield (Proof), MPa 430
250

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
520
Maximum Temperature: Mechanical, °C 910
800
Melting Completion (Liquidus), °C 1390
1440
Melting Onset (Solidus), °C 1340
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
10

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.8
2.5
Embodied Energy, MJ/kg 41
36
Embodied Water, L/kg 160
120

Common Calculations

PREN (Pitting Resistance) 23
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
92
Resilience: Unit (Modulus of Resilience), kJ/m3 460
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
17
Strength to Weight: Bending, points 24
18
Thermal Shock Resistance, points 16
17

Alloy Composition

Aluminum (Al), % 0
0 to 1.5
Carbon (C), % 0.020 to 0.1
0 to 0.030
Chromium (Cr), % 17 to 19
13 to 16
Copper (Cu), % 1.5 to 3.0
0 to 0.5
Iron (Fe), % 59 to 67.3
77.1 to 86.7
Manganese (Mn), % 10.5 to 12.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 3.5 to 4.5
0 to 0.5
Niobium (Nb), % 0
0 to 0.5
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.050
0 to 0.050
Silicon (Si), % 0 to 1.0
0.2 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.050
Titanium (Ti), % 0
0.15 to 0.8