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EN 1.4310 Stainless Steel vs. EN 1.7703 Steel

Both EN 1.4310 stainless steel and EN 1.7703 steel are iron alloys. They have 76% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4310 stainless steel and the bottom bar is EN 1.7703 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 270
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 45
20
Fatigue Strength, MPa 240 to 330
320 to 340
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Shear Strength, MPa 510 to 550
420 to 430
Tensile Strength: Ultimate (UTS), MPa 730 to 900
670 to 690
Tensile Strength: Yield (Proof), MPa 260 to 570
460 to 500

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 910
460
Melting Completion (Liquidus), °C 1420
1470
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
39
Thermal Expansion, µm/m-K 18
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 14
4.2
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.9
2.5
Embodied Energy, MJ/kg 42
35
Embodied Water, L/kg 140
61

Common Calculations

PREN (Pitting Resistance) 20
5.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 260
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 830
570 to 650
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26 to 32
24
Strength to Weight: Bending, points 23 to 27
22
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 15 to 18
19 to 20

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.11 to 0.15
Chromium (Cr), % 16 to 19
2.0 to 2.5
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 66.4 to 78
94.6 to 96.4
Manganese (Mn), % 0 to 2.0
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.8
0.9 to 1.1
Nickel (Ni), % 6.0 to 9.5
0 to 0.25
Niobium (Nb), % 0
0 to 0.070
Nitrogen (N), % 0 to 0.1
0 to 0.012
Phosphorus (P), % 0 to 0.045
0 to 0.015
Silicon (Si), % 0 to 2.0
0 to 0.1
Sulfur (S), % 0 to 0.015
0 to 0.0050
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0.25 to 0.35