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EN 1.4537 Stainless Steel vs. EN 1.4307 Stainless Steel

Both EN 1.4537 stainless steel and EN 1.4307 stainless steel are iron alloys. They have 70% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4537 stainless steel and the bottom bar is EN 1.4307 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
180 to 270
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 42
14 to 46
Fatigue Strength, MPa 290
190 to 320
Impact Strength: V-Notched Charpy, J 91
91 to 94
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
77
Shear Strength, MPa 480
410 to 550
Tensile Strength: Ultimate (UTS), MPa 700
590 to 900
Tensile Strength: Yield (Proof), MPa 330
200 to 570

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
940
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 34
15
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.1
3.0
Embodied Energy, MJ/kg 84
43
Embodied Water, L/kg 220
140

Common Calculations

PREN (Pitting Resistance) 46
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
110 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 270
100 to 810
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
21 to 32
Strength to Weight: Bending, points 22
20 to 27
Thermal Diffusivity, mm2/s 3.7
4.0
Thermal Shock Resistance, points 15
13 to 20

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 24 to 26
17.5 to 19.5
Copper (Cu), % 1.0 to 2.0
0
Iron (Fe), % 36.3 to 46.1
66.8 to 74.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 4.7 to 5.7
0
Nickel (Ni), % 24 to 27
8.0 to 10.5
Nitrogen (N), % 0.17 to 0.25
0 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015