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EN 1.4613 Stainless Steel vs. EN 1.4749 Stainless Steel

Both EN 1.4613 stainless steel and EN 1.4749 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4613 stainless steel and the bottom bar is EN 1.4749 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 21
16
Fatigue Strength, MPa 180
190
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
80
Shear Strength, MPa 330
370
Tensile Strength: Ultimate (UTS), MPa 530
600
Tensile Strength: Yield (Proof), MPa 280
320

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 550
450
Maximum Temperature: Mechanical, °C 1050
1100
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 19
17
Thermal Expansion, µm/m-K 11
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
13
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 2.6
2.5
Embodied Energy, MJ/kg 38
36
Embodied Water, L/kg 150
160

Common Calculations

PREN (Pitting Resistance) 24
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
80
Resilience: Unit (Modulus of Resilience), kJ/m3 190
250
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 19
22
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 5.2
4.6
Thermal Shock Resistance, points 18
22

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Carbon (C), % 0 to 0.030
0.15 to 0.2
Chromium (Cr), % 22 to 25
26 to 29
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 70.3 to 77.8
68.5 to 73.7
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.5
0
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.050
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.015
Titanium (Ti), % 0.2 to 1.0
0