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EN 1.4749 Stainless Steel vs. EN 1.4319 Stainless Steel

Both EN 1.4749 stainless steel and EN 1.4319 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4749 stainless steel and the bottom bar is EN 1.4319 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 16
51
Fatigue Strength, MPa 190
240
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Shear Strength, MPa 370
460
Tensile Strength: Ultimate (UTS), MPa 600
640
Tensile Strength: Yield (Proof), MPa 320
250

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1100
890
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 9.6
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 13
13
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.5
2.7
Embodied Energy, MJ/kg 36
39
Embodied Water, L/kg 160
130

Common Calculations

PREN (Pitting Resistance) 31
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
260
Resilience: Unit (Modulus of Resilience), kJ/m3 250
160
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 22
23
Strength to Weight: Bending, points 21
21
Thermal Diffusivity, mm2/s 4.6
4.0
Thermal Shock Resistance, points 22
14

Alloy Composition

Carbon (C), % 0.15 to 0.2
0 to 0.070
Chromium (Cr), % 26 to 29
16 to 18
Iron (Fe), % 68.5 to 73.7
70.8 to 78
Manganese (Mn), % 0 to 1.0
0 to 2.0
Nickel (Ni), % 0
6.0 to 8.0
Nitrogen (N), % 0.15 to 0.25
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030