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AISI 303 Stainless Steel vs. EN 1.6957 Steel

Both AISI 303 stainless steel and EN 1.6957 steel are iron alloys. They have 77% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 303 stainless steel and the bottom bar is EN 1.6957 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 210
280
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40 to 51
18
Fatigue Strength, MPa 230 to 360
530
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 430 to 470
570
Tensile Strength: Ultimate (UTS), MPa 600 to 690
930
Tensile Strength: Yield (Proof), MPa 230 to 420
780

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 930
450
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
47
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 15
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.0
2.1
Embodied Energy, MJ/kg 42
29
Embodied Water, L/kg 140
60

Common Calculations

PREN (Pitting Resistance) 18
2.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
160
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 440
1630
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 25
33
Strength to Weight: Bending, points 20 to 22
27
Thermal Diffusivity, mm2/s 4.4
13
Thermal Shock Resistance, points 13 to 15
27

Alloy Composition

Carbon (C), % 0 to 0.15
0.22 to 0.32
Chromium (Cr), % 17 to 19
1.2 to 1.8
Iron (Fe), % 67.3 to 74.9
92.7 to 94.7
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 0
0.25 to 0.45
Nickel (Ni), % 8.0 to 10
3.4 to 4.0
Phosphorus (P), % 0 to 0.2
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.15
Sulfur (S), % 0.15 to 0.35
0 to 0.0070
Vanadium (V), % 0
0.050 to 0.15