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S31277 Stainless Steel vs. AISI 302 Stainless Steel

Both S31277 stainless steel and AISI 302 stainless steel are iron alloys. They have 69% 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 S31277 stainless steel and the bottom bar is AISI 302 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
4.5 to 46
Fatigue Strength, MPa 380
210 to 520
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
77
Shear Strength, MPa 600
400 to 830
Tensile Strength: Ultimate (UTS), MPa 860
580 to 1430
Tensile Strength: Yield (Proof), MPa 410
230 to 1100

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 430
410
Maximum Temperature: Mechanical, °C 1100
710
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 36
15
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.7
3.0
Embodied Energy, MJ/kg 90
42
Embodied Water, L/kg 220
140

Common Calculations

PREN (Pitting Resistance) 51
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
59 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 410
140 to 3070
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
21 to 51
Strength to Weight: Bending, points 25
20 to 36
Thermal Shock Resistance, points 19
12 to 31

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.15
Chromium (Cr), % 20.5 to 23
17 to 19
Copper (Cu), % 0.5 to 1.5
0
Iron (Fe), % 35.5 to 46.2
67.9 to 75
Manganese (Mn), % 0 to 3.0
0 to 2.0
Molybdenum (Mo), % 6.5 to 8.0
0
Nickel (Ni), % 26 to 28
8.0 to 10
Nitrogen (N), % 0.3 to 0.4
0 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030