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ASTM A372 Grade K Steel vs. SAE-AISI 1330 Steel

Both ASTM A372 grade K steel and SAE-AISI 1330 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A372 grade K steel and the bottom bar is SAE-AISI 1330 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
150 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
11 to 23
Fatigue Strength, MPa 440
210 to 380
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 490
330 to 430
Tensile Strength: Ultimate (UTS), MPa 780
520 to 710
Tensile Strength: Yield (Proof), MPa 620
290 to 610

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 440
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 48
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 4.4
1.9
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.4
Embodied Energy, MJ/kg 24
19
Embodied Water, L/kg 57
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
76 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 1010
230 to 990
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27
19 to 25
Strength to Weight: Bending, points 24
18 to 23
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 23
17 to 23

Alloy Composition

Carbon (C), % 0 to 0.18
0.28 to 0.33
Chromium (Cr), % 1.0 to 1.8
0
Iron (Fe), % 93.4 to 96.6
97.3 to 98
Manganese (Mn), % 0.1 to 0.4
1.6 to 1.9
Molybdenum (Mo), % 0.2 to 0.6
0
Nickel (Ni), % 2.0 to 3.3
0
Phosphorus (P), % 0 to 0.015
0 to 0.035
Silicon (Si), % 0.15 to 0.35
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.040