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AISI 304 Stainless Steel vs. EN 1.7706 Steel

Both AISI 304 stainless steel and EN 1.7706 steel are iron alloys. They have 73% of their average alloy composition in common. There are 31 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 304 stainless steel and the bottom bar is EN 1.7706 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 360
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 8.0 to 43
17
Fatigue Strength, MPa 210 to 440
330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 580 to 1180
690
Tensile Strength: Yield (Proof), MPa 230 to 860
500

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 710
440
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
40
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
3.7
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.0
2.3
Embodied Energy, MJ/kg 43
32
Embodied Water, L/kg 150
57

Common Calculations

PREN (Pitting Resistance) 20
4.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 250
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1870
670
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 42
24
Strength to Weight: Bending, points 20 to 32
22
Thermal Diffusivity, mm2/s 4.2
11
Thermal Shock Resistance, points 12 to 25
20

Alloy Composition

Carbon (C), % 0 to 0.080
0.15 to 0.2
Chromium (Cr), % 18 to 20
1.2 to 1.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 66.5 to 74
94.7 to 97.1
Manganese (Mn), % 0 to 2.0
0.5 to 0.9
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 8.0 to 10.5
0 to 0.4
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 0.75
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0
0.2 to 0.3