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Steel Alloy Designation System

SteelAlloyDesignationSystemChart.pdf

Steel Alloy Designation System
 AISI-SAE  Designation Number Type and Description
Carbon Steels 
10xx Plain Carbon (Mn. 1.00% max.)
11xx Resulfurized
12xx Resulfurized and rephosphorized
15xx Plain Carbon (max. Mn. Range 1.00 – 1.65%)
Manganese steels
13xx Mn 1.75
Nickel steels
23xx Ni 3.50
25xx Ni 5.00
Nickel-chromium steels
31xx Ni 1.25; Cr 0.65, 0.80
32xx Ni 1.75; Cr 1.07
33xx Ni 3.50; Cr 1.50, 1.57
34xx Ni 3.00; Cr 0.77
Molybdenum steels
40xx Mo 0.20, 0.25
44xx Mo 0.40, 0.52
Chromium-molybdenum steels
41xx Cr 0.50, 0.80, 0.95; Mo 0.12, 0.20, 0.25, 0.30
Nickel-chromium-molybdenum steels
43xx Ni 1.82; Cr 0.50, 0.80; Mo 0.25
43BVxx Ni 1.82; Cr 0.50; Mo 0.12, 0.25; V 0.03 min.
47xx Ni 1.05; Cr 0.45; Mo 0.20, 0.35
S1xx Ni 0.30; Cr 0.40; Mo 0.12
86xx Ni 0.55; Cr 0.50; Mo 0.20
87xx Ni 0.55; Cr 0.50; Mo 0.25
88xx Ni 0.55; Cr 0.50; Mo 0.35
93xx Ni 3.25; Cr 1.20; Mo 0.12
94xx Ni 0.45; Cr 0.40; Mo 0.12
97xx Ni 1.00; Cr 0.20; Mo 0.20
98xx Ni 1.00; Cr 0.80; Mo 0.25
Nickel-molybdenum steels
46xx Ni 0.85, 1.82; Mo 0.20, 0.25
48xx Ni 3.50; Mo 0.25
50xx Cr 0.27, 0.40, 0.50, 0.65
51xx Cr 0.80, 0.87, 0.92, 0.95, 1.00, 1.05
50xxx Cr 0.50; C 1.00 min.
51xxx Cr 1.02; C 1.00 min.
52xxx Cr 1.45; C 1.00 min.
Chromium-vanadium steels
61xx Cr 0.60, 0.80, 0.95; V 0.10, 0.15
Tungsten-chromium steels
92xx Si 1.40, 2.00; Mn 0.65, 0.82, 0.85; Cr 0.00, 0.65
Silicon-manganese steels
92xx Si 1.40, 2.00; Mn 0.65, 0.82, 0.85; Cr 0.00, 0.65
High-strength low-alloy steels
9xx Various SAE grades
Boron steels
xxBxx B denotes boron steels
Leaded steels
xxLxx L denotes leaded steels

Machinability Of Metals Chart

MachinabilityOfMetalsChart.pdf

Machinability of Metals

(Based on 100% machinability for AISI 1212 steel)
Carbon Steels: Percentage
1015 72%
1018 78%
1020 72%
1022 78%
1030 70%
1040 64%
1042 64%
1050 54%
1095 42%
1117 91%
1137 72%
1141 70%
1141 annealed 81%
1144 76%
1144 annealed 85%
1144 stressproof 83%
1212 100%
1213 136%
12L14 170%
1215 136%
Alloy Steels: Percentage
2355 annealed 70%
4130 annelaed 72%
4140 annealed 66%
4142 annealed 66%
41L42 77%
4150 annealed 60%
4340 annealed 57%
4620 66%
4820 annealed 49%
52100 annealed 40%
6150 annealed 60%
8620 66%
86L20 77%
9310 annealed 51%
Stainless Steels and Super Alloys: Percentage
302 annealed 45%
303 annealed 78%
304 annealed 45%
316 annealed 45%
321 annealed 36%
347 annealed 36%
410 annealed 54%
416 annealed 110%
420 annealed 45%
430 annealed 54%
431 annealed 45%
440A 45%
15-5PH condition A 48%
17-4PH condition A 48%
A286 aged 33%
Hastelloy X 19%
Tool Steels: Percentage
A-2 42%
A-6 33%
D-2 27%
D-3 27%
M-2 39%
O-1 42%
O-2 42%
Gray Caast Iron: Percentage
ASTM class 20 annealed 73%
ASTM class 25 55%
ASTM class 30 48%
ASTM class 35 48%
ASTM class 40 48%
ASTM class 45 36%
ASTM class 50 36%
Nodular Iron: Percentage
60-40- 18 annealed 61%
65-45- 12 annealed 61%
80-55-06 39%
Aluminum and Magnesium Alloys: Percentage
aluminum, cold drawn 360%
aluminum, cast 450%
aluminum, die cast 76%
magnesium, cold drawn 480%
magnesium, cast 480%

Densities of Common Materials Chart

DensitiesOfCommonMaterialsChart.pdf

Material Density            (g/cm3)
Liquids
Water at 4 ˚C 1.0000
Water at 20 ˚C 0.998
Gasoline 0.70
Mercury 13.6
Milk 1.03
Material Density            (g/cm3)
Solids
Magnesium 1.7
Aluminum 2.7
Brass 8.55
Copper 8.3-9.0
Gold 19.3
Iron 7.8
Zinc 7.14
Steel 8.03
Lead 11.3
Platinum 21.4
Uranium 18.7
Osmium 22.5
Ice at 0 C 0.92
Wood (estimate) 0.67
Material Density
(g/cm3)
Gases at Standard Temperature and Pressure
Air 0.001293
Carbon dioxide .001977
Carbon monoxide 0.00125
Hydrogen 0.00009
Helium 0.000178
Nitrogen 0.001251

Note that the density of some items shown above changes with certain variables.  For instance whole milk and 1% milk or Ipe wood and Balsa wood.