MakeItFrom.com
Menu (ESC)

S82012 Stainless Steel vs. ASTM A387 Grade 21L Class 1

Both S82012 stainless steel and ASTM A387 grade 21L class 1 are iron alloys. Both are furnished in the annealed condition. They have 79% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S82012 stainless steel and the bottom bar is ASTM A387 grade 21L class 1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
21
Fatigue Strength, MPa 480
160
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
74
Shear Strength, MPa 550
310
Tensile Strength: Ultimate (UTS), MPa 800
500
Tensile Strength: Yield (Proof), MPa 560
230

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 950
480
Melting Completion (Liquidus), °C 1430
1470
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
41
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 11
4.1
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.4
1.8
Embodied Energy, MJ/kg 35
23
Embodied Water, L/kg 140
62

Common Calculations

PREN (Pitting Resistance) 24
6.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
84
Resilience: Unit (Modulus of Resilience), kJ/m3 790
140
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29
18
Strength to Weight: Bending, points 25
18
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 23
14

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.1
Chromium (Cr), % 19 to 20.5
2.8 to 3.3
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 71.3 to 77.9
94.4 to 96.1
Manganese (Mn), % 2.0 to 4.0
0.3 to 0.6
Molybdenum (Mo), % 0.1 to 0.6
0.9 to 1.1
Nickel (Ni), % 0.8 to 1.5
0
Nitrogen (N), % 0.16 to 0.26
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.8
0 to 0.5
Sulfur (S), % 0 to 0.0050
0 to 0.025