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ASTM Grade HP Steel vs. AISI 310HCb Stainless Steel

Both ASTM grade HP steel and AISI 310HCb stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HP steel and the bottom bar is AISI 310HCb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 5.1
46
Fatigue Strength, MPa 130
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
78
Tensile Strength: Ultimate (UTS), MPa 490
590
Tensile Strength: Yield (Proof), MPa 260
230

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Corrosion, °C 440
520
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1370
1410
Melting Onset (Solidus), °C 1330
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 34
28
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 5.8
4.8
Embodied Energy, MJ/kg 82
69
Embodied Water, L/kg 220
190

Common Calculations

PREN (Pitting Resistance) 27
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
210
Resilience: Unit (Modulus of Resilience), kJ/m3 170
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
21
Strength to Weight: Bending, points 17
20
Thermal Diffusivity, mm2/s 3.2
3.9
Thermal Shock Resistance, points 11
13

Alloy Composition

Carbon (C), % 0.35 to 0.75
0.040 to 0.1
Chromium (Cr), % 24 to 28
24 to 26
Iron (Fe), % 29.2 to 42.7
48 to 57
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 33 to 37
19 to 22
Niobium (Nb), % 0
0 to 1.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 2.5
0 to 0.75
Sulfur (S), % 0 to 0.040
0 to 0.030