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AISI 316 Stainless Steel vs. ASTM Grade HP Steel

Both AISI 316 stainless steel and ASTM grade HP steel are iron alloys. They have 67% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 316 stainless steel and the bottom bar is ASTM grade HP steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 360
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 8.0 to 55
5.1
Fatigue Strength, MPa 210 to 430
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
78
Tensile Strength: Ultimate (UTS), MPa 520 to 1180
490
Tensile Strength: Yield (Proof), MPa 230 to 850
260

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Corrosion, °C 410
440
Maximum Temperature: Mechanical, °C 590
1100
Melting Completion (Liquidus), °C 1400
1370
Melting Onset (Solidus), °C 1380
1330
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 19
34
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.9
5.8
Embodied Energy, MJ/kg 53
82
Embodied Water, L/kg 150
220

Common Calculations

PREN (Pitting Resistance) 26
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 85 to 260
21
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 1820
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18 to 41
17
Strength to Weight: Bending, points 18 to 31
17
Thermal Diffusivity, mm2/s 4.1
3.2
Thermal Shock Resistance, points 11 to 26
11

Alloy Composition

Carbon (C), % 0 to 0.080
0.35 to 0.75
Chromium (Cr), % 16 to 18
24 to 28
Iron (Fe), % 62 to 72
29.2 to 42.7
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.0 to 3.0
0 to 0.5
Nickel (Ni), % 10 to 14
33 to 37
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.040