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
Spring Clips	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

0.010 ± 0.0020

0.016 ± 0.0025

0.020 ± 0.0025

0.025 ± 0.0025

0.032 ± 0.0020

0.040 ± 0.0020

0.050 ± 0.0020

0.063 ± 0.0030

0.071 ± 0.0030

0.080 ± 0.0035

0.090 ± 0.0035

0.100 ± 0.0035

0.125 ± 0.0035

Aluminum Alloys for Non-Aerospace Projects

0.016 ± 0.0015

0.020 ± 0.0020

0.025 ± 0.0020

0.032 ± 0.0025

0.040 ± 0.0035

0.050 ± 0.0035

0.063 ± 0.0035

0.080 ± 0.0045

0.090 ± 0.0045

0.125 ± 0.0055

Berylco

0.002 ± 0.0004

0.003 ± 0.0004

0.004 ± 0.0004

0.005 ± 0.0006

0.006 ± 0.0006

0.007 ± 0.0008

0.008 ± 0.0008

0.010 ± 0.0010

0.0126 ± 0.001

0.016 ± 0.0013

0.018 ± 0.0015

0.020 ± 0.0015

0.022 ± 0.0020

0.025 ± 0.0020

0.028 ± 0.0025

0.032 ± 0.0025

0.040 ± 0.0030

0.050 ± 0.0030

0.062 ± 0.0035

Brass

0.002 ± 0.0006

0.003 ± 0.0006

0.004 ± 0.0006

0.005 ± 0.0008

0.007 ± 0.0010

0.008 ± 0.0010

0.010 ± 0.0013

0.012 ± 0.0013

0.016 ± 0.0025

0.018 ± 0.0030

0.020 ± 0.0030

0.025 ± 0.0030

0.032 ± 0.0035

0.040 ± 0.0040

0.050 ± 0.0040

0.063 ± 0.0050

0.080 ± 0.0060

0.090 ± 0.0060

0.125 ± 0.0060

Copper

0.010 ± 0.0008

0.016 ± 0.0010

0.018 ± 0.0013

0.021 ± 0.0013

0.025 ± 0.0015

0.032 ± 0.0020

0.043 ± 0.0020

0.048 ± 0.0020

0.051 ± 0.0025

0.064 ± 0.0025

0.080 ± 0.0030

0.094 ± 0.0030

0.125 ± 0.0030

Bronze (Phosphor)

0.005 ± 0.0004

0.006 ± 0.0004

0.008 ± 0.0006

0.010 ± 0.0008

0.012 ± 0.0008

0.016 ± 0.0010

0.020 ± 0.0013

0.025 ± 0.0015

0.032 ± 0.0020

0.040 ± 0.0020

0.050 ± 0.0020

Spring Steel

0.005 ± 0.0008

0.006 ± 0.0008

0.008 ± 0.0008

0.010 ± 0.0010

0.012 ± 0.0010

0.015 ± 0.0012

0.018 ± 0.0012

0.020 ± 0.0015

0.025 ± 0.0015

0.028 ± 0.0015

0.032 ± 0.0020

0.035 ± 0.0020

0.040 ± 0.0024

0.050 ± 0.0024

0.062 ± 0.0024

0.083 ± 0.0030

0.093 ± 0.0028

0.109 ± 0.0028

0.125 ± 0.0032

Stainless Steel

0.001 ± 0.0001

0.002 ± 0.0002

0.003 ± 0.0003

0.004 ± 0.0004

0.005 ± 0.0005

0.006 ± 0.0006

0.007 ± 0.0007

0.008 ± 0.0008

0.010 ± 0.0010

0.012 ± 0.0020

0.016 ± 0.0020

0.020 ± 0.0025

0.024 ± 0.0025

0.025 ± 0.0025

0.030 ± 0.0040

0.032 ± 0.0030

0.035 ± 0.0050

0.040 ± 0.0035

0.048 ± 0.0035

0.060 ± 0.0035

0.063 ± 0.0035

0.075 ± 0.0050

0.090 ± 0.0050

*0.100 ± 0.004

*0.105 ± 0.005

*0.120 ± 0.005

*0.125 ± 0.005

*0.135 ± 0.005

Steel (CRS)

0.001 ± 0.0001

0.002 ± 0.0002

0.003 ± 0.0003

0.005 ± 0.0005

0.006 ± 0.0006

0.007 ± 0.0007

0.010 ± 0.0010

0.012 ± 0.0012

0.015 ± 0.0020

0.018 ± 0.0020

0.020 ± 0.0030

0.024 ± 0.0030

0.025 ± 0.0030

0.030 ± 0.0030

0.032 ± 0.0028

0.036 ± 0.0030

0.042 ± 0.0040

0.048 ± 0.0040

0.060 ± 0.0050

0.063 ± 0.0050

0.075 ± 0.0050

0.090 ± 0.0050

0.105 ± 0.0060

0.120 ± 0.0060

0.135 ± 0.0060

Titanium

0.016 ± 0.0020

0.020 ± 0.0030

0.032 ± 0.0040

0.063 ± 0.0060

0.080 ± 0.0070

Material

Thickness and Tolerance

Acetal (Delrin)

0.010 ± 0.003

0.015 ± 0.002

0.020 ± 0.003

0.025 ± 0.003

0.031 ± 0.003

0.040 ± 0.003

0.050 ± 0.004

0.062 ± 0.004

0.093 ± 0.005

0.125 ± 0.005

Fiberglass G7/G9/G10/G11)

0.005 ± 0.0023

0.010 ± 0.0023

0.015 ± 0.0034

0.020 ± 0.0045

0.025 ± 0.0056

0.031 ± 0.0073

0.040 ± 0.0084

0.045 ± 0.0084

0.062 ± 0.0084

0.093 ± 0.0101

0.125 ± 0.0135

Fiber

0.010 ± 0.0010

0.012 ± 0.0012

0.015 ± 0.0015

0.020 ± 0.0020

0.025 ± 0.0025

0.032 ± 0.0040

0.040 ± 0.0040

0.045 ± 0.0060

0.050 ± 0.0050

0.062 ± 0.0062

0.070 ± 0.0070

0.078 ± 0.0080

0.093 ± 0.0120

0.125 ± 0.0150

Kapton

0.010 ± 0.0010

0.012 ± 0.0012

0.015 ± 0.0015

0.020 ± 0.0020

0.025 ± 0.0025

0.032 ± 0.0040

0.040 ± 0.0040

0.045 ± 0.0060

0.050 ± 0.0050

0.062 ± 0.0062

0.070 ± 0.0070

0.078 ± 0.0080

0.093 ± 0.0120

0.125 ± 0.0150

PCTFE

0.016 ± 0.003

0.031 ± 0.004

0.040 ± 0.004

0.062 ± 0.013

Mica

0.002 ± 0.001

0.003 ± 0.001

0.004 ± 0.001

0.005 ± 0.001

0.006 ± 0.002

0.007 ± 0.002

0.008 ± 0.002

0.009 ± 0.002

0.010 ± 0.002

0.015 ± 0.003

Mylar

0.001 ± 0.0001

0.002 ± 0.0002

0.003 ± 0.0003

0.004 ± 0.0004

0.005 ± 0.0005

0.007 ± 0.0007

0.010 ± 0.0010

0.014 ± 0.0014

Neoprene

0.016 ± 0.010

0.020 ± 0.010

0.031 ± 0.012

0.047 ± 0.012

0.062 ± 0.012

0.093 ± 0.016

0.125 ± 0.016

Nylon and Nylatron

0.010 ± 0.003

0.015 ± 0.003

0.016 ± 0.004

0.020 ± 0.003

0.025 ± 0.003

0.031 ± 0.003

0.040 ± 0.003

0.050 ± 0.005

0.062 ± 0.005

0.070 ± 0.005

0.080 ± 0.005

0.093 ± 0.005

0.125 ± 0.010

Phenolic

0.010 ± 0.0030

0.020 ± 0.0045

0.025 ± 0.0051

0.031 ± 0.0056

0.047 ± 0.0075

0.063 ± 0.0079

0.094 ± 0.0088

0.125 ± 0.0090

High Density Polyethylene

0.010 ± 0.0030

0.015 ± 0.002

0.020 ± 0.002

0.025 ± 0.003

0.030 ± 0.004

0.040 ± 0.003

0.050 ± 0.005

0.062 ± 0.006

0.093 ± 0.005

0.125 ± 0.005

PVC

0.005 ± 0.001

0.007 ± 0.001

0.010 ± 0.001

0.015 ± 0.002

0.020 ± 0.002

0.030 ± 0.003

0.040 ± 0.004

0.062 ± 0.009

0.080 ± 0.008

0.093 ± 0.009

0.100 ± 0.010

0.125 ± 0.013

Santoprene

0.015 ± 0.008

0.030 ± 0.008

0.045 ± 0.008

0.062 ± 0.008

0.093 ± 0.008

0.125 ± 0.008

Polytetrafluoroethene (PTFE)

0.002 ± 0.0005

0.003 ± 0.0010

0.004 ± 0.0010

0.005 ± 0.0010

0.010 ± 0.0015

0.015 ± 0.0020

0.020 ± 0.0025

0.025 ± 0.0030

0.031 ± 0.0040

0.040 ± 0.0045

0.045 ± 0.0050

0.050 ± 0.0050

0.062 ± 0.0050

0.070 ± 0.0060

0.076 ± 0.0060

0.080 ± 0.0060

0.093 ± 0.0060

0.100 ± 0.0070

0.125 ± 0.0070

	Aluminum 2024 T3/T4	Beryllium Copper		Brass (Heat-Treated)	Copper (H-H)
	Aluminum 2024 T3/T4	Annealed	Heat-Treated	Brass (Heat-Treated)	Copper (H-H)
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
	Neoprene	Pure (1)	Moly-Sulfide (M)	PCTFE
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

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