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ASTM A369 Grade FP12 vs. AISI 334 Stainless Steel

Both ASTM A369 grade FP12 and AISI 334 stainless steel are iron alloys. They have 61% of their average alloy composition in common. There are 28 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 ASTM A369 grade FP12 and the bottom bar is AISI 334 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
34
Fatigue Strength, MPa 170
150
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 300
360
Tensile Strength: Ultimate (UTS), MPa 470
540
Tensile Strength: Yield (Proof), MPa 250
190

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 430
1000
Melting Completion (Liquidus), °C 1470
1410
Melting Onset (Solidus), °C 1430
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
22
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6
4.1
Embodied Energy, MJ/kg 21
59
Embodied Water, L/kg 52
170

Common Calculations

PREN (Pitting Resistance) 2.8
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
140
Resilience: Unit (Modulus of Resilience), kJ/m3 160
96
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
19
Strength to Weight: Bending, points 17
19
Thermal Shock Resistance, points 14
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0.050 to 0.15
0 to 0.080
Chromium (Cr), % 0.8 to 1.3
18 to 20
Iron (Fe), % 96.8 to 98.4
55.7 to 62.7
Manganese (Mn), % 0.3 to 0.61
0 to 1.0
Molybdenum (Mo), % 0.44 to 0.65
0
Nickel (Ni), % 0
19 to 21
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6