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AISI 334 Stainless Steel vs. S30815 Stainless Steel

Both AISI 334 stainless steel and S30815 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 90% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 334 stainless steel and the bottom bar is S30815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
45
Fatigue Strength, MPa 150
320
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 79
82
Shear Modulus, GPa 77
77
Shear Strength, MPa 360
480
Tensile Strength: Ultimate (UTS), MPa 540
680
Tensile Strength: Yield (Proof), MPa 190
350

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 490
430
Maximum Temperature: Mechanical, °C 1000
1020
Melting Completion (Liquidus), °C 1410
1400
Melting Onset (Solidus), °C 1370
1360
Specific Heat Capacity, J/kg-K 480
490
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 22
17
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.1
3.3
Embodied Energy, MJ/kg 59
47
Embodied Water, L/kg 170
160

Common Calculations

PREN (Pitting Resistance) 19
24
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
260
Resilience: Unit (Modulus of Resilience), kJ/m3 96
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
25
Strength to Weight: Bending, points 19
22
Thermal Shock Resistance, points 12
15

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Carbon (C), % 0 to 0.080
0.050 to 0.1
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 18 to 20
20 to 22
Iron (Fe), % 55.7 to 62.7
62.8 to 68.4
Manganese (Mn), % 0 to 1.0
0 to 0.8
Nickel (Ni), % 19 to 21
10 to 12
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.0
1.4 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0.15 to 0.6
0