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EN 1.4597 Stainless Steel vs. EN 1.4912 Stainless Steel

Both EN 1.4597 stainless steel and EN 1.4912 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 89% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4597 stainless steel and the bottom bar is EN 1.4912 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 45
40
Fatigue Strength, MPa 300
200
Impact Strength: V-Notched Charpy, J 90
90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 470
420
Tensile Strength: Ultimate (UTS), MPa 680
610
Tensile Strength: Yield (Proof), MPa 330
230

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
520
Maximum Temperature: Mechanical, °C 860
940
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1350
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 11
20
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.5
3.8
Embodied Energy, MJ/kg 36
55
Embodied Water, L/kg 140
140

Common Calculations

PREN (Pitting Resistance) 21
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
190
Resilience: Unit (Modulus of Resilience), kJ/m3 280
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
22
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 4.1
4.2
Thermal Shock Resistance, points 15
14

Alloy Composition

Carbon (C), % 0 to 0.1
0.040 to 0.1
Chromium (Cr), % 15 to 18
17 to 19
Copper (Cu), % 2.0 to 3.5
0
Iron (Fe), % 63 to 76.4
64.6 to 73.6
Manganese (Mn), % 6.5 to 9.0
0 to 2.0
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
9.0 to 12
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015