MakeItFrom.com
Menu (ESC)

SAE-AISI D4 Steel vs. S31277 Stainless Steel

Both SAE-AISI D4 steel and S31277 stainless steel are iron alloys. They have 55% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D4 steel and the bottom bar is S31277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 8.4 to 15
45
Fatigue Strength, MPa 310 to 920
380
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 74
80
Shear Strength, MPa 460 to 1210
600
Tensile Strength: Ultimate (UTS), MPa 760 to 2060
860
Tensile Strength: Yield (Proof), MPa 470 to 1540
410

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
36
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 3.3
6.7
Embodied Energy, MJ/kg 49
90
Embodied Water, L/kg 100
220

Common Calculations

PREN (Pitting Resistance) 15
51
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 160
320
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27 to 75
29
Strength to Weight: Bending, points 24 to 47
25
Thermal Shock Resistance, points 23 to 63
19

Alloy Composition

Carbon (C), % 2.1 to 2.4
0 to 0.020
Chromium (Cr), % 11 to 13
20.5 to 23
Copper (Cu), % 0 to 0.25
0.5 to 1.5
Iron (Fe), % 80.6 to 86.3
35.5 to 46.2
Manganese (Mn), % 0 to 0.6
0 to 3.0
Molybdenum (Mo), % 0.7 to 1.2
6.5 to 8.0
Nickel (Ni), % 0 to 0.3
26 to 28
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Vanadium (V), % 0 to 1.0
0