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EN 1.4372 Stainless Steel vs. EN 1.4003 Stainless Steel

Both EN 1.4372 stainless steel and EN 1.4003 stainless steel are iron alloys. They have 85% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4372 stainless steel and the bottom bar is EN 1.4003 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 47
22
Fatigue Strength, MPa 330
210
Impact Strength: V-Notched Charpy, J 90
67
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 560
340
Tensile Strength: Ultimate (UTS), MPa 790
540
Tensile Strength: Yield (Proof), MPa 350
320

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 410
390
Maximum Temperature: Mechanical, °C 880
720
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
6.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.9
Embodied Energy, MJ/kg 38
27
Embodied Water, L/kg 140
97

Common Calculations

PREN (Pitting Resistance) 19
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
100
Resilience: Unit (Modulus of Resilience), kJ/m3 320
260
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29
19
Strength to Weight: Bending, points 25
19
Thermal Diffusivity, mm2/s 4.0
6.7
Thermal Shock Resistance, points 17
19

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 16 to 18
10.5 to 12.5
Iron (Fe), % 67.5 to 75
83.9 to 89.2
Manganese (Mn), % 5.5 to 7.5
0 to 1.5
Nickel (Ni), % 3.5 to 5.5
0.3 to 1.0
Nitrogen (N), % 0.050 to 0.25
0 to 0.030
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015