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S21603 Stainless Steel vs. SAE-AISI D4 Steel

Both S21603 stainless steel and SAE-AISI D4 steel are iron alloys. They have 76% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is S21603 stainless steel and the bottom bar is SAE-AISI D4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
8.4 to 15
Fatigue Strength, MPa 360
310 to 920
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
74
Shear Strength, MPa 490
460 to 1210
Tensile Strength: Ultimate (UTS), MPa 690
760 to 2060
Tensile Strength: Yield (Proof), MPa 390
470 to 1540

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 17
8.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.6
3.3
Embodied Energy, MJ/kg 50
49
Embodied Water, L/kg 160
100

Common Calculations

PREN (Pitting Resistance) 34
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
100 to 160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
27 to 75
Strength to Weight: Bending, points 22
24 to 47
Thermal Shock Resistance, points 15
23 to 63

Alloy Composition

Carbon (C), % 0 to 0.030
2.1 to 2.4
Chromium (Cr), % 17.5 to 22
11 to 13
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 57.6 to 67.8
80.6 to 86.3
Manganese (Mn), % 7.5 to 9.0
0 to 0.6
Molybdenum (Mo), % 2.0 to 3.0
0.7 to 1.2
Nickel (Ni), % 5.0 to 7.0
0 to 0.3
Nitrogen (N), % 0.25 to 0.5
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0 to 1.0