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S40977 Stainless Steel vs. ASTM A372 Grade J Steel

Both S40977 stainless steel and ASTM A372 grade J steel are iron alloys. They have 89% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S40977 stainless steel and the bottom bar is ASTM A372 grade J steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
200 to 310
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
17 to 22
Fatigue Strength, MPa 200
310 to 570
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 320
410 to 630
Tensile Strength: Ultimate (UTS), MPa 510
650 to 1020
Tensile Strength: Yield (Proof), MPa 310
430 to 850

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 720
420
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
44
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.9
1.5
Embodied Energy, MJ/kg 27
20
Embodied Water, L/kg 97
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
130 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 250
500 to 1930
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
23 to 36
Strength to Weight: Bending, points 18
21 to 29
Thermal Diffusivity, mm2/s 6.7
12
Thermal Shock Resistance, points 18
19 to 30

Alloy Composition

Carbon (C), % 0 to 0.030
0.35 to 0.5
Chromium (Cr), % 10.5 to 12.5
0.8 to 1.2
Iron (Fe), % 83.9 to 89.2
96.7 to 97.8
Manganese (Mn), % 0 to 1.5
0.75 to 1.1
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 0.3 to 1.0
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.010