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S21603 Stainless Steel vs. EN 1.7706 Steel

Both S21603 stainless steel and EN 1.7706 steel are iron alloys. They have 66% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is S21603 stainless steel and the bottom bar is EN 1.7706 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
17
Fatigue Strength, MPa 360
330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 690
690
Tensile Strength: Yield (Proof), MPa 390
500

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 990
440
Melting Completion (Liquidus), °C 1420
1470
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 17
3.7
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.6
2.3
Embodied Energy, MJ/kg 50
32
Embodied Water, L/kg 160
57

Common Calculations

PREN (Pitting Resistance) 34
4.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
110
Resilience: Unit (Modulus of Resilience), kJ/m3 380
670
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
24
Strength to Weight: Bending, points 22
22
Thermal Shock Resistance, points 15
20

Alloy Composition

Carbon (C), % 0 to 0.030
0.15 to 0.2
Chromium (Cr), % 17.5 to 22
1.2 to 1.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 57.6 to 67.8
94.7 to 97.1
Manganese (Mn), % 7.5 to 9.0
0.5 to 0.9
Molybdenum (Mo), % 2.0 to 3.0
0.9 to 1.1
Nickel (Ni), % 5.0 to 7.0
0 to 0.4
Nitrogen (N), % 0.25 to 0.5
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