MakeItFrom.com
Menu (ESC)

ASTM A387 Grade 21L Class 1 vs. AISI 302 Stainless Steel

Both ASTM A387 grade 21L class 1 and AISI 302 stainless steel are iron alloys. They have 75% 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 A387 grade 21L class 1 and the bottom bar is AISI 302 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
170 to 440
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
4.5 to 46
Fatigue Strength, MPa 160
210 to 520
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
77
Shear Strength, MPa 310
400 to 830
Tensile Strength: Ultimate (UTS), MPa 500
580 to 1430
Tensile Strength: Yield (Proof), MPa 230
230 to 1100

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Maximum Temperature: Mechanical, °C 480
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 41
16
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
15
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.8
3.0
Embodied Energy, MJ/kg 23
42
Embodied Water, L/kg 62
140

Common Calculations

PREN (Pitting Resistance) 6.4
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
59 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 140
140 to 3070
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18
21 to 51
Strength to Weight: Bending, points 18
20 to 36
Thermal Diffusivity, mm2/s 11
4.4
Thermal Shock Resistance, points 14
12 to 31

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.15
Chromium (Cr), % 2.8 to 3.3
17 to 19
Iron (Fe), % 94.4 to 96.1
67.9 to 75
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.1
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