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EN 1.7703 Steel vs. AISI 301L Stainless Steel

Both EN 1.7703 steel and AISI 301L stainless 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 (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.7703 steel and the bottom bar is AISI 301L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
210 to 320
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
22 to 50
Fatigue Strength, MPa 320 to 340
240 to 530
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
77
Shear Strength, MPa 420 to 430
440 to 660
Tensile Strength: Ultimate (UTS), MPa 670 to 690
620 to 1040
Tensile Strength: Yield (Proof), MPa 460 to 500
250 to 790

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 460
890
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1430
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 4.2
13
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.5
2.7
Embodied Energy, MJ/kg 35
39
Embodied Water, L/kg 61
130

Common Calculations

PREN (Pitting Resistance) 5.6
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
210 to 300
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 650
160 to 1580
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
22 to 37
Strength to Weight: Bending, points 22
21 to 29
Thermal Diffusivity, mm2/s 11
4.1
Thermal Shock Resistance, points 19 to 20
14 to 24

Alloy Composition

Carbon (C), % 0.11 to 0.15
0 to 0.030
Chromium (Cr), % 2.0 to 2.5
16 to 18
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 94.6 to 96.4
70.7 to 78
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0 to 0.25
6.0 to 8.0
Niobium (Nb), % 0 to 0.070
0
Nitrogen (N), % 0 to 0.012
0 to 0.2
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0 to 0.0050
0 to 0.030
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0.25 to 0.35
0