MakeItFrom.com
Menu (ESC)

S21460 Stainless Steel vs. SAE-AISI 4340 Steel

Both S21460 stainless steel and SAE-AISI 4340 steel are iron alloys. They have 64% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S21460 stainless steel and the bottom bar is SAE-AISI 4340 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
210 to 360
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 46
12 to 22
Fatigue Strength, MPa 390
330 to 740
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 580
430 to 770
Tensile Strength: Ultimate (UTS), MPa 830
690 to 1280
Tensile Strength: Yield (Proof), MPa 430
470 to 1150

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 920
430
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1330
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 18
13

Otherwise Unclassified Properties

Base Metal Price, % relative 14
3.5
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 3.0
1.7
Embodied Energy, MJ/kg 43
22
Embodied Water, L/kg 160
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
79 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 460
590 to 3490
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
24 to 45
Strength to Weight: Bending, points 26
22 to 33
Thermal Shock Resistance, points 17
20 to 38

Alloy Composition

Carbon (C), % 0 to 0.12
0.38 to 0.43
Chromium (Cr), % 17 to 19
0.7 to 0.9
Iron (Fe), % 57.3 to 63.7
95.1 to 96.3
Manganese (Mn), % 14 to 16
0.6 to 0.8
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 5.0 to 6.0
1.7 to 2.0
Nitrogen (N), % 0.35 to 0.5
0
Phosphorus (P), % 0 to 0.060
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040