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AISI 302 Stainless Steel vs. ASTM A372 Grade L Steel

Both AISI 302 stainless steel and ASTM A372 grade L steel are iron alloys. They have 75% 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 AISI 302 stainless steel and the bottom bar is ASTM A372 grade L steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 440
350
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 4.5 to 46
14
Fatigue Strength, MPa 210 to 520
670
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 400 to 830
700
Tensile Strength: Ultimate (UTS), MPa 580 to 1430
1160
Tensile Strength: Yield (Proof), MPa 230 to 1100
1040

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 710
430
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
44
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 15
3.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.0
1.7
Embodied Energy, MJ/kg 42
22
Embodied Water, L/kg 140
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59 to 260
150
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 3070
2890
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 51
41
Strength to Weight: Bending, points 20 to 36
31
Thermal Diffusivity, mm2/s 4.4
12
Thermal Shock Resistance, points 12 to 31
34

Alloy Composition

Carbon (C), % 0 to 0.15
0.38 to 0.43
Chromium (Cr), % 17 to 19
0.7 to 0.9
Iron (Fe), % 67.9 to 75
95.2 to 96.3
Manganese (Mn), % 0 to 2.0
0.6 to 0.8
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 8.0 to 10
1.7 to 2.0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.015
Silicon (Si), % 0 to 0.75
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.010