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ASTM A369 Grade FP12 vs. AISI 302 Stainless Steel

Both ASTM A369 grade FP12 and AISI 302 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP12 and the bottom bar is AISI 302 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
170 to 440
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
4.5 to 46
Fatigue Strength, MPa 170
210 to 520
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 300
400 to 830
Tensile Strength: Ultimate (UTS), MPa 470
580 to 1430
Tensile Strength: Yield (Proof), MPa 250
230 to 1100

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 430
710
Melting Completion (Liquidus), °C 1470
1420
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
16
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
15
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6
3.0
Embodied Energy, MJ/kg 21
42
Embodied Water, L/kg 52
140

Common Calculations

PREN (Pitting Resistance) 2.8
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
59 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 160
140 to 3070
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
21 to 51
Strength to Weight: Bending, points 17
20 to 36
Thermal Diffusivity, mm2/s 12
4.4
Thermal Shock Resistance, points 14
12 to 31

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.15
Chromium (Cr), % 0.8 to 1.3
17 to 19
Iron (Fe), % 96.8 to 98.4
67.9 to 75
Manganese (Mn), % 0.3 to 0.61
0 to 2.0
Molybdenum (Mo), % 0.44 to 0.65
0
Nickel (Ni), % 0
8.0 to 10
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.025
0 to 0.030