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EN 1.4749 Stainless Steel vs. EN 1.4837 Stainless Steel

Both EN 1.4749 stainless steel and EN 1.4837 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 32 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 1.4837 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 16
6.8
Fatigue Strength, MPa 190
120
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 600
500
Tensile Strength: Yield (Proof), MPa 320
250

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Corrosion, °C 450
440
Maximum Temperature: Mechanical, °C 1100
1050
Melting Completion (Liquidus), °C 1420
1390
Melting Onset (Solidus), °C 1380
1350
Specific Heat Capacity, J/kg-K 490
490
Thermal Conductivity, W/m-K 17
14
Thermal Expansion, µm/m-K 9.6
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
20
Density, g/cm3 7.6
7.7
Embodied Carbon, kg CO2/kg material 2.5
3.7
Embodied Energy, MJ/kg 36
53
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 31
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
29
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
18
Strength to Weight: Bending, points 21
18
Thermal Diffusivity, mm2/s 4.6
3.7
Thermal Shock Resistance, points 22
11

Alloy Composition

Carbon (C), % 0.15 to 0.2
0.3 to 0.5
Chromium (Cr), % 26 to 29
24 to 27
Iron (Fe), % 68.5 to 73.7
53.4 to 63.7
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
11 to 14
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
1.0 to 2.5
Sulfur (S), % 0 to 0.015
0 to 0.030