Engineering Resources
Disclaimer: Phoenix Specialty Mfg. Co. does not provide any engineering or design services, we manufacture product to customer specifications.
The information on this page is obtained from third party sites and is for reference only. We cannot guarantee its accuracy.
- Screw Size, Diameter, Tap Drill Chart
- Material Characteristics for Non-Metals
- Specifications for Metallic Materials
- Specifications for Finish Types
- Material Characteristics for Metals
- Finish Type Suffixes
- Characteristics of Material Finishes
- Specifications for Non-Metallic Materials
- Specifications for Heat Treatments
- Conversion Chart – Millimeter to Inch
- Conversion Chart – Inch to Millimeter
- Fractions and Their Decimal Equivalents
- Metallic Tolerances at Different Thickness Levels
- Non-Metallic Tolerances at Different Thickness Levels
- Metallics: Table of Properties
- Non-Metallics: Table of Contents
Size of Screw | Size of Tap Drill | Diameter of Tap Drill | Maximum Diameter of Screw |
000-120 | #71 | .026 | .034 |
00-90 | #62 | .038 | .047 |
0-80 | #56 | .0465 | .060 |
1-72 | #53 | .0595 | .073 |
2-56 | #50 | .070 | .086 |
3-48 | #47 | .0785 | .099 |
4-40 | #43 | .089 | .112 |
5-40 | #38 | .1015 | .125 |
6-32 | #36 | .1065 | .138 |
8-32 | #29 | .136 | .164 |
10-24 | #25 | .1495 | .190 |
12-24 | #16 | .177 | .216 |
Material | Characteristics |
Acetal | Color: Transparent white Electrical properties: 400-465 v/mil (Good) Mechanical properties: High. High rigidity. Resistant to damage from fatigue, moisture, solvents and gasoline. Not resistant to hot water, steam and strong alkalis. Highly resistant to cold flow. |
Fiber | Color: Grey and black Electrical properties: 150-250 v/mil Mechanical properties: Fair. Can be formed Not magnetic Resistant to corrosion Thermal conductivity: .25 BTU/hr/ft2/°F/ft Highly resistant to cold flow. |
Fiberglass (G-7 Silicone Resin) | G-7 provides the best heat resistance of any fiberglass |
Fiberglass (G-9 Heat Resistant Melamine resin) | Good heat resistance Can be used in mechanical applications Almost no electrical conductivity, good insulator when wet Stable Thermal conductivity: 0.29BTY/hr/ft2/F/ft |
Fiberglass (G-10 Epoxy Resin) | Stable Good tensile strength (at room temperature) Effective electrical insulation |
Fiberglass (G-11 Heat Resistant Epoxy Resin) | Stable Good tensile strength (at room temperature) Tests show strength retention drops to 50% after one hour of treatment at 150 centigrade. Effective electrical insulation |
Kapton (Polymide Plastic Film) | Excellent electrical conductivity Relatively good strength Can withstand temperatures up to 750 Fahrenheit |
Metal | Specs |
Aluminum | QQ-A-250 / 1-29, ASTM-B209, AMS-4037, AMS-4003, ASTM-B479 |
Beryllium Copper | ASMT=B194 |
Brass | AMS-4505, ASTM-B36, ASTM-B16, ASTM-B591 |
Copper | ASTM-B152, AMS-4500 |
Phos. Bronze | ASTM-B103, AMS-4510 |
Steel | ASTM-A1008, ASTM-A109, ASTM-A684, AMS-5040 |
Spring Steel | QQ-S-700, ASTM-A684, AMS-5120 |
Stainless Steel (15-17) | ASTM-A693, AMS-5520 |
Stainless Steel (17-7) | ASTM-A693, AMS-5528 |
Stainless Steel (300 Series) | ASTM-A167, ASTM-A240, ASTM-A240M, A666, AMS-5901, AMS-5902, AMS-5903, AMS-5904, AMS-5905, AMS-5906, AMS-5907, AMS-5910, AMS-5911, AMS-5912, AMS-5913, AMS-5513, AMS-5516, AMS-5517, AMS-5518, AMS-5519, AMS-5524 |
Titanium | ASTM-F67(3), AMS-4900 |
Finish Type | Spec | |||
Anodize: A1 & A2 | MIL-A-8625, Type I & II, Class 1 & 2 | |||
Black Oxide: BO | MIL-C-13924 | MIL-F-495 | AMS 2485 | |
Cadmium Plate: C1 & C2 | QQ-P-416, Type I, II Class 2 | |||
Chem. Film | MIL-C-5514, Type I, Class 1A (Gold) | |||
Chrome | AMS 2460 | |||
Nickel Plate: N | AMS-QQ-N-290, Class 1, Grade G | |||
Passivate: P | AMS 2700 Method 1, Type 2, Class 1 (Copper Sulfate test) | ASTM A967 | ||
Phosphate: PH | MIL-DTL-16232, Type Z, Class 2 | |||
Silver Plate: S | ASTM B700 | |||
Tin Plate: T1 | ASTM B545, Class B (Bright) | |||
Tin Dip: T2 | MIL-T-10727, Type II | |||
Tin Lead Plate: TL1 | AMS-P-81728 | |||
Tin Lead Dip: TL2 | MIL-DTL-14072, M258 | |||
Zinc Plate: Z2 | ASTM B633, SC1, Type II (Yellow) | |||
Zinc Plate: Z3 | ASTM B633, SC1, Type III (Clear) |
Material | Characteristics |
Aluminum (2024) | Magnetic: No Suitable for aeronautic projects: Yes Weighs only a third as much as steel Hardness can be enhanced with heat treatment Electrical conductivity is a 30% that of copper Heat conductivity: 70 BTU/hr/ft2/°F/ft Corrosion resistance can be enhanced via anodizing |
Aluminum 6061 / 7075 | Magnetic: No Suitable for aeronautic projects: Yes Weighs only a third as much as steel Hardness can be enhanced with heat treatment Electrical conductivity is a 30% that of copper Heat conductivity: 70 BTU/hr/ft2/°F/ft Corrosion resistance can be enhanced via anodizing |
Aluminum 1100 / 3003 / 5052 | Magnetic: No Suitable for aeronautic projects: No Weighs only a third as much as steel Not suitable for heat treatment Electrical conductivity is a 30% that of copper Heat conductivity: 70 BTU/hr/ft2/°F/ft Corrosion resistance can be enhanced via anodizing Softer alloys, suitable for gaskets Common alloy used in commercial applications |
Beryllium Copper (Alloy 25) | Magnetic: No Electrical conductivity: Between 17 and 22% that of copper Heat conductivity: 68 BTU/hr/ft2/°F/ft Formable in annealed state. Hardenable via heat treating Resistant to corrosion Common usage: springs, washers and clips Results in effective plating |
Brass (Alloy 260 / 70/30 / Copper/Zinc) | Magnetic: No Electrical conductivity: 26% that of copper Heat conductivity: 70 BTU/hr/ft2/°F/ft Use spring temper for a cleaner cut and flatter part, compared to soft tempered or half hard brass Results in highly effective plating |
Copper (Alloy 110 / Electrical tough pitch / 99.9% Copper) | Magnetic: No Resistant to corrosion Electrical conductivity: Extremely high (100% that of copper) Thermal conductivity: Extremely high (225 BTU/hr/ft2/°F/ft) Results in effective plating Can be sealed in a highly effective manner |
Phosphor Bronze (Grade A / Spring Temper) | Magnetic: No Fairly resistant to corrosion Electrical conductivity: Fair (15% that of copper) Tensile strength is high Temperature resistance is high Effective surface for bearing Effective for making springs |
Steel (Low Carbon / CRS / Commercial Quality) | Magnetic: Yes Electrical Conductivity: Fair (12% that of copper) Not resistant to corrosion if untreated Relatively inexpensive material with high tensile strength Highly versatile with many applications |
Stainless Steel (300 Series ) | Annealed State: 0.010 HH State: 0.005 – 0.009 FH State: 0.001 – 0.004 Magnetic: Slightly. Poorly magnetic in annealed state Highly versatile with many applications Higher tensile strength than standard steel Highly resistant to corrosion |
Stainless Steel (400 Series) | Annealed State: 0.010 HH State: 0.005 – 0.009 FH State: 0.001 – 0.004 Magnetic: Slightly. Poorly magnetic in annealed state Highly versatile with many applications Higher tensile strength than standard steel Highly resistant to corrosion Can be additionally plated |
Spring Steel High Carbon (1050 / 1074 / 1075 / 1095 | Higher than 0.005 Hardness can be increased through heat treatment Easily formable in annealed state Applications include springs, washers and clips |
Titanium (AMS-4900) | Pure enough for commercial application Usable in extremely high temperatures Strength/weight ratio: High Suitable for aeronautic applications Relatively expensive Resistant to corrosion |
The specific finish applied to a part will be denoted by one of the suffixes outlined below.
Suffix | Finish |
A | Anodize |
BO | Black Oxide |
C1 | Cadmium (Type 1) |
C2 | Cadmium (Type 2) |
CF | Chemical Film |
CHR | Chrome |
N | Nickel |
P | Passivate |
PH | Phosphate |
S | Silver |
T1 | Tin (Plating) |
T2 | Tin (Dip) |
TL1 | Tin Lead (Plate) |
TL2 | Tin Lead (Dip) |
Z2 | Zinc Type II (Yellow Finish) |
Z3 | Zinc Type III (Clear Finish) |
Finishing Method | Characteristics |
Anodizing | Suitable for: Aluminum Highly resistant to corrosion Can be clear to dark gray, or dyed in any color with tempered alloys Conductivity: None Can be painted effectively Poor resistance to abrasion Usable with parts of close tolerance |
Baking | Suitable for: Heat treated, high carbon steel Not resistant to corrosion Material will be slightly stained finish Treatment should be applied immediately following electro-plating. This prevents hydrogen making the material brittle |
Black Oxide | Suitable for: Steel (standard and stainless) Fair resistance to corrosion on indoor applications. Exterior applications: poor corrosion resistance Black in color Appearance can be enhanced via wax and oil dip treatments Will not alter the dimensions of the part |
Cadmium (Type I) | Suitable for: All metals Excellent resistance to corrosion Gray in color A common finish for electroplating |
Cadmium (Type II) | Suitable for: All metals Excellent resistance to corrosion Golden in color. Sometimes black, olive or clear Can be used over Type I treatment Excellent resistance to humidity and to moisture Excellent results from painting |
Degreasing | Suitable for: All metals No resistance to corrosion Will not produce a change in color Will only remove oils from the surface, not solids |
Nickel (Bright) | Suitable for: All metals Resistance to corrosion depends on thickness, generally good Bright silver in color Good for aesthetically decorative finishing |
Passivate | Suitable for: Stainless steel Excellent resistance to corrosion No change in color results from finishing No change in dimension of part All surface iron oxides removed Treat with light oil following finishing to prevent rust corrosion A cleaning process rather than a traditional finish |
Phosphate | Suitable for: Steel Fairly good resistance to corrosion. Good resistance to rusting Gray in color |
Pickling | Suitable for: All metals No resistance to corrosion No change in color after treating Effective removal of scale, rust or other evidence of corrosion |
Silver | Suitable for: All metals Excellent resistance to corrosion Bright silver in color Electrical conductivity: Excellent Good for aesthetic finishing Easy to tarnish Excellent for soldering Lubricity: excellent Excellent for anti-galling |
Tin (Bright) | Suitable for: All metals Good resistance to corrosion Silver gray in color Good for soldering Results last a long time Not usable in low temperatures |
Tin (Hot Tin Dip) | Suitable for: All metals Good resistance to corrosion Silver gray in color Excellent for soldering Not easy to control thickness of finish Cannot be used with parts of irregular shape, with tight tolerance or with recesses or hollows in the surface |
Zinc (Type I) | Suitable for: All metals Very good resistance to corrosion Blue-gray in color Initially bright after treating, color will fade over time Galvanizes base metal Exposure to weather conditions (for exterior parts) results in dull gray color |
Zinc (Type II) | Suitable for: All metals Very good resistance to corrosion Golden in color Works in the same way as Cadmium (Type II) Prevents – or at least delays – corrosion of zinc |
Non-Metallic Material | Spec | |||
Acetal | ASTM D6778 | ASTM D4181 | ||
Fiber | ASTM D710 | |||
Glass Epoxy | MIL-I-24768/27 GEE-F(G-10/FR-4),/3 GEB(G-11) | ASTM D709 | ||
Glass Melamine | MIL-I-24768/10 GME(G-9) | ASTM D709 | ||
Glass Silicone | MIL-I-24768/17 GSG(G-7) | ASTM D709 | ||
Ground Strap Insulation | SAE-AMS-DTL-23053/5, Class 1 Black | |||
Kapton | ASTM D5213, Type 1, Item A | |||
Mica | ASTM D2131 | HH-I-536 | HH-I-538 | |
Mylar | MIL-I-631 Type A | |||
Neoprene | MIL-R-6855, Class 2, Type A Grade 60 | |||
Nylatron | L-P-410A, Type 6/6 SWR | ASTM D4066 | ASTM D6779 | |
Nylon | L-P-410A, Type 6/6 | ASTM D4066 | ASTM D6779 | |
Phenolic CE | MIL-I-24768/14 FBG | ASTM D709 CE | ||
Phenolic LE | MIL-I-24768/13 FBE | ASTM D709 LE | ||
Phenolic XXXP | MIL-I-24768/p NPG | ASTM D709 N-1 | ||
Polyethylene (High Density) | ASTM D4976 Group 1 Class 4 Grade 4 UL 94HB FDA 21 CFR 177.1520 © 2.1 | |||
PVC | L-P-535, Type I, Class I | ASTM D1784 | L-P-1036 | |
Santoprene | ASTM D2000 | BC608 | BC812 | |
PTFE | ASTM D1710 | ASTM D3293 | AMS 3656 | AMS 3660 |
ASTM D3308 | AMS 3652 |
Product | Material | Treatment | ||
Spring Clips | 1074-1095 Spring Steel | HR15N 80-83 | ||
Beryllium Copper | HR15N 73-79 | |||
Spring Washers | 1074-1095 Spring Steel | HR15N 82.5-84.5 | ||
Beryllium Copper | HR15N 78-81 | |||
17-7 Stainless Steel | TH1050 | HRC 38-44 |
Millimeter Value | Equivalent in inches |
.01 | .0004 |
.02 | .0008 |
.03 | .0012 |
.04 | .0016 |
.05 | .0020 |
.06 | .0024 |
.07 | .0028 |
.08 | .0031 |
.09 | .0035 |
.1 | .004 |
.2 | .008 |
.3 | .012 |
.4 | .016 |
.5 | .020 |
.6 | .024 |
.7 | .028 |
.8 | .031 |
.9 | .035 |
1 | .039 |
2 | .079 |
3 | .118 |
4 | .158 |
5 | .197 |
6 | .236 |
7 | .276 |
8 | .315 |
9 | .354 |
10 | .394 |
20 | .787 |
30 | 1.181 |
40 | 1.575 |
50 | 1.969 |
60 | 2.362 |
70 | 2.756 |
80 | 3.150 |
90 | 3.543 |
100 | 3.937 |
200 | 7.874 |
300 | 11.811 |
400 | 15.748 |
500 | 19.685 |
600 | 23.622 |
700 | 27.559 |
800 | 31.496 |
900 | 35.433 |
1000 | 39.37 |
Some values have been approximated to enable ease of use. However, the chart meets industry accuracy standards.
Inch Value | Equivalent in Millimeters |
.001 | .03 |
.002 | .05 |
.003 | .08 |
.004 | .10 |
.005 | .13 |
.006 | .15 |
.007 | .18 |
.008 | .20 |
.009 | .23 |
.01 | .25 |
.02 | .51 |
.03 | .76 |
.04 | 1.02 |
.05 | 1.27 |
.06 | 1.52 |
.07 | 1.78 |
.08 | 2.03 |
.09 | 2.29 |
.100 | 2.54 |
.200 | 5.08 |
.300 | 7.62 |
.400 | 10.16 |
.500 | 12.70 |
.600 | 15.24 |
.700 | 17.78 |
.800 | 20.32 |
.900 | 22.86 |
1.000 | 25.40 |
2.000 | 50.80 |
3.000 | 76.20 |
4.000 | 101.60 |
5.000 | 127.00 |
6.000 | 152.40 |
7.000 | 177.80 |
8.000 | 203.20 |
9.000 | 228.60 |
10.000 | 254.00 |
Some values have been approximated to enable ease of use. However the chart meets industry accuracy standards.
Fraction – Decimal Equivalent | Fraction – Decimal Equivalent |
1/64 —.0156 | 17/64 —.2656 |
1/32 —.0312 | 9/32 —.2812 |
3/64 —.0468 | 19/64 —.2969 |
1/16 —.0625 | 5/16 —.3125 |
5/64 —.0781 | 21/64 —.3281 |
3/32 —.0937 | 11/32 —.3437 |
7/64 —.1094 | 23/64 —.3594 |
1/8 —.1250 | 3/8 —.3750 |
9/64 —.1406 | 25/64 —.3906 |
5/32 —.1562 | 13/32 —.4062 |
11/64 —.1719 | 27/64 —.4219 |
3/16 —.1875 | 7/16 —.4375 |
13/64 —.2031 | 29/64 —.4531 |
7/32 —.2187 | 15/32 —.4687 |
15/64 —.2344 | 31/64 —.4844 |
1/4 —.2500 | 1/2 —.5000 |
1/64 —.0156 | 17/64 —.2656 |
1/32 —.0312 | 9/32 —.2812 |
3/64 —.0468 | 19/64 —.2969 |
1/16 —.0625 | 5/16 —.3125 |
5/64 —.0781 | 21/64 —.3281 |
3/32 —.0937 | 11/32 —.3437 |
7/64 —.1094 | 23/64 —.3594 |
1/8 —.1250 | 3/8 —.3750 |
9/64 —.1406 | 25/64 —.3906 |
5/32 —.1562 | 13/32 —.4062 |
11/64 —.1719 | 27/64 —.4219 |
3/16 —.1875 | 7/16 —.4375 |
13/64 —.2031 | 29/64 —.4531 |
7/32 —.2187 | 15/32 —.4687 |
15/64 —.2344 | 31/64 —.4844 |
1/4 —.2500 | 1/2 —.5000 |
1/64 —.0156 | 17/64 —.2656 |
1/32 —.0312 | 9/32 —.2812 |
3/64 —.0468 | 19/64 —.2969 |
1/16 —.0625 | 5/16 —.3125 |
5/64 —.0781 | 21/64 —.3281 |
3/32 —.0937 | 11/32 —.3437 |
7/64 —.1094 | 23/64 —.3594 |
1/8 —.1250 | 3/8 —.3750 |
9/64 —.1406 | 25/64 —.3906 |
5/32 —.1562 | 13/32 —.4062 |
11/64 —.1719 | 27/64 —.4219 |
3/16 —.1875 | 7/16 —.4375 |
13/64 —.2031 | 29/64 —.4531 |
7/32 —.2187 | 15/32 —.4687 |
15/64 —.2344 | 31/64 —.4844 |
1/4 —.2500 | 1/2 —.5000 |
1/64 —.0156 | 17/64 —.2656 |
1/32 —.0312 | 9/32 —.2812 |
3/64 —.0468 | 19/64 —.2969 |
1/16 —.0625 | 5/16 —.3125 |
5/64 —.0781 | 21/64 —.3281 |
3/32 —.0937 | 11/32 —.3437 |
7/64 —.1094 | 23/64 —.3594 |
1/8 —.1250 | 3/8 —.3750 |
9/64 —.1406 | 25/64 —.3906 |
5/32 —.1562 | 13/32 —.4062 |
11/64 —.1719 | 27/64 —.4219 |
3/16 —.1875 | 7/16 —.4375 |
13/64 —.2031 | 29/64 —.4531 |
7/32 —.2187 | 15/32 —.4687 |
15/64 —.2344 | 31/64 —.4844 |
1/4 —.2500 | 1/2 —.5000 |
Metal | Thickness and Tolerance | ||||||||||||||||||||||||||||
Aluminum Alloys for Aerospace Projects |
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Aluminum Alloys for Non-Aerospace Projects |
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Berylco |
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Brass |
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Copper |
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Bronze (Phosphor) |
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Spring Steel |
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Stainless Steel |
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Steel (CRS) |
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Titanium |
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Acetal (Delrin) |
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Fiberglass G7/G9/G10/G11) |
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Fiber |
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Kapton |
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PCTFE |
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Mica |
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Mylar |
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Neoprene |
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Nylon and Nylatron |
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Phenolic |
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High Density Polyethylene |
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PVC |
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Santoprene |
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Polytetrafluoroethene (PTFE) |
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Aluminum 2024 T3/T4 | Beryllium Copper | Brass (Heat-Treated) | Copper (H-H) | ||
Annealed | Heat-Treated | ||||
Tensile Strength (psi) | 68,000 | 70,000 | 180,000 | 70,000 | 34,000 |
Shear Strength (psi) | 41,000 | — | — | 36,000 | 23,000 |
Elongation (%) | 20 | 45 | 6 | 30 | 30 |
Modules of Elasticity (psi) | 10,600,000 | 19,000,000 | 19,000,000 | 15,000,000 | 17,000,000 |
Hardness | RB75 | RB78 | R 15N-78-81 | RB60 | 45 Brinell |
Specific Gravity | 2.77 | 8.26 | 8.26 | 8.46 | 8.90 |
Melting Point °F | 1180 | 1600-1800 | 1600-1800 | 1660-1715 | 1949-1981 |
Electrical Conductivity (% of Copper) | 30 | 17 | 22 | 26 | 100 |
Thermal Conductivity (BTU/hr/ft²/°F/ft) | 70 | 68 | 68 | 70 | 225 |
Coef. of Thermal Expansion (in/in°F)(10-6) | 12.9 | 9.3 | 9.3 | 10.2 | 9.3 |
Specific Heat (BTU/lb/°F) | .23 | .10 | .10 | .09 | .09 |
Phos. Bronze | Solder (60-40) | Steel | Spring Steel (Heat-Treated) | Stainless Steel (300 Series) | Titanium | |
Tensile Strength (psi) | 100,000 | 6,400 | 65,000 | 194,000 | 90,000 | 70,000 |
Shear Strength (psi) | — | 5,700 | 45,000 | — | 67,000 | — |
Elongation (%) | 4 | 45 | 30 | 4 | 55 | 22 |
Modules of Elasticity (psi) | 16,000,000 | — | 30,000,000 | 30,000,000 | 28,000,000 | 14,900,000 |
Hardness | RB95 | 15 Brinell | RB63 | R15N-82.5-84.5 | RB90 | RB90 |
Specific Gravity | 8.86 | 8.67 | 7.85 | 8.46 | 7.90 | 4.5 |
Melting Point °F | 1920 | 362-374 | 2765 | 1660-1715 | 2600-2680 | 3272 |
Electrical Conductivity (% of Copper) | 15 | 12 | 12 | 26 | 2.4 | 14.1 |
Thermal Conductivity (BTU/hr/ft²/°F/ft) | 40 | 28 | 34 | 70 | 10 | — |
Coef. of Thermal Expansion (in/in°F)(10-6) | 9.9 | 12.2 | 6.5 | 10.2 | 9.6 | 4-8 |
Specific Heat (BTU/lb/°F) | .09 | .05 | .11 | .11 | .12 | — |
Acetal | Vulcanized Fiber | Glass Epoxy G10 | Glass Melamine G9 | ||
Dielectric Strength/v/mill (short time) | 400-465 | 150-250 | 400 | 350 | |
Dielectric Constant @ 1000 kc | 3.7 | 4-7 | 5.4 | 7.5 | |
Power Factor @ 1000 kc | — | 0.03-0.08 | 0.015 | 0.08 | |
Tensile Strength (psi) | 10,000 | 6,000-12,000 | 35,000 | 37,000 | |
Shear Strength (psi) | — | 11,000-15,000 | 19,000 | — | |
Compressive Strength (psi) | 18,000 | 20,000-30,000 | 55,000(flat) | 65,000(flat) | |
Elongation (%) | 30 | — | — | — | |
Flexural Strength (psi) | 14,000 | 12,000-20,000 | 80,000(flat) | 65,000(flat) | |
Modulus of Elasticity (psi) | 350,000 | 750,000 | 2,200,000 | 2,300,000 | |
Hardness | R118 | R60-100 | M 100 | M 120 | |
Specific Gravity | 1.42 | 1.0-1.5 | 1.8 | 1.9 | |
Thermal Conductivity (BTU/hr/ft²/°F/ft) | — | 0.25 | 0.17 | 0.29 | |
Specific Heat (BTU/lb/°F) | — | 0.37 | — | 0.26 | |
Resistance to Continuous Heat °F | 212 | 212 | 280 | 300 | |
Water Absorption % | 0.12 | 15-25 | 0.15 | 0.2 |
Glass Silicone G7 | Kapton | Mica | Mylar | |
Dielectric Strength/v/mill (short time) | 350-400 | 7,000 | 3,000-6,000 | 4,000 |
Dielectric Constant @ 1000 kc | 4.2 | 3.5 | 6.5-8.7 | 3 |
Power Factor @ 1000 kc | — | — | 0.0005 | 0.016 |
Tensile Strength (psi) | 18,000-23,000 | 25,000 | — | 20,000 |
Shear Strength (psi) | 17,000 | — | — | — |
Compressive Strength (psi) | 245,000 | — | — | — |
Elongation (%) | — | 70 | — | 75 |
Flexural Strength (psi) | 20,000-23,000 | — | — | — |
Modulus of Elasticity (psi) | 1,200,000 | — | 25,000,000 | — |
Hardness | M 100 | — | 80-150 SDH | — |
Specific Gravity | 1.7 | 1.42 | 2.6-3.2 | 1.38 |
Thermal Conductivity (BTU/hr/ft²/°F/ft) | 0.17 | 0.09 | — | 0.09 |
Specific Heat (BTU/lb/°F) | — | 0.26 | 0.207 | — |
Resistance to Continuous Heat °F | 460 | 750 | 1,050 | 300 |
Water Absorption % | 0.2-0.3 | 2.9 | 4.5 | <0.5 |
Neoprene | Nylon | PCTFE | ||
Pure (1) | Moly-Sulfide (M) | |||
Dielectric Strength/v/mill (short time) | — | 385 | 356 | 530 |
Dielectric Constant @ 1000 kc | — | 3.4 | — | 2.4 |
Power Factor @ 1000 kc | — | 0.04 | — | — |
Tensile Strength (psi) | 1,500 | 10,500 | 12,300 | 4,600-5,700 |
Shear Strength (psi) | — | 9,600 | — | 5,800 |
Compressive Strength (psi) | — | 13,000 | — | 32,000-80,000 |
Elongation (%) | 300 | 90 | 5-150 | 150 |
Flexural Strength (psi) | — | 13,800 | 18,000 | 8,200 |
Modulus of Elasticity (psi) | — | 400,000 | 575,000 | 180,000 |
Hardness | 50-70 SHA | R115 | R115 | R113 |
Specific Gravity | 1.23 | 1.14 | 1.16 | 2.1 |
Thermal Conductivity (btu/hr/ft²/°F/ft) | — | 0.14 | — | 0.15 |
Specific Heat (BTU/lb/°F) | — | 0.4 | — | 0.22 |
Resistance to Continuous Heat °F | 175 | 300 | 400 | 390 |
Water Absorption % | — | 1.5 | 1.5 | 0.005 |
Phenolic | |||
LE | CE | XXXP | |
Dielectric Strength/v/mill (short time) | 225 | 225 | 325 |
Dielectric Constant @ 1000 kc | — | — | 4.30 Avg. |
Power Factor @ 1000 kc | 5.2 | 5.5 | 3.2 |
Tensile Strength (psi) | 10,000-14,000 | 9,000-12,000 | 13,500 |
Shear Strength (psi) | 11,000-15,000 | 11,000-15,000 | 7,000 |
Compressive Strength (psi) | 37,000(flat) | 37,000(flat) | 36,000(flat) |
Elongation (%) | — | — | — |
Flexural Strength (psi) | 20,000(flat) | 16,000(flat) | 19,000(flat) |
Modulus of Elasticity (psi) | 1,000,000 | 1,000,000 | 1,000,000 |
Hardness | M 113 | M 108 | M 110 |
Specific Gravity | 1.33 | 1.36 | 1.35 |
Thermal Conductivity (BTU/hr/ft²/°F/ft) | 0.17 | 0.17 | 0.17 |
Specific Heat (BTU/lb/°F) | 0.4 | 0.4 | — |
Resistance to Continuous Heat °F | 250 | 250 | 250 |
Water Absorption % | 1.3 | 1.6 | 0.8 |
Polyethylene (High-Density) | PVC | Santoprene | PTFE | |
Dielectric Strength/v/mill (short time) | 460 | 425 | — | 480 |
Dielectric Constant @ 1000 kc | 2.3 | 3.4 | — | 2 |
Power Factor @ 1000 kc | <.0005 | — | — | <.0005 |
Tensile Strength (psi) | 3,100-5,500 | 5,900-7,500 | 640 | 800 |
Shear Strength (psi) | — | — | — | — |
Compressive Strength (psi) | 2,500 | 10,000 | — | 1,700 |
Elongation (%) | 15-100 | 2.0-4.0 | 330 | 110 |
Flexural Strength (psi) | 4,000 | 13,000 | — | — |
Modulus of Elasticity (psi) | 150,000 | 600,000 | — | 58,000 |
Hardness | 60-70 SDH | 65-85 SDH | 55 SDH | 50-70 SDH |
Specific Gravity | .941-.965 | 1.46 | 0.99 | 2.1-2.3 |
Thermal Conductivity (BTU/hr/ft²/°F/ft) | — | — | — | 0.15 |
Specific Heat (BTU/lb/°F) | — | — | — | 0.25 |
Resistance to Continuous Heat °F | 250 | 160 | 212 | 500 |
Water Absorption % | <0.015 | 0.07-0.4 | — | 0.005 |