| | 公制换算表 Metric Equivalent Charts
 |  |  | 
 | 从分数英寸到毫米的线性换算表 Linear Conversion Table From Fractional Inches to Millimeters
 | 
 | 英寸 inches
 |  | 毫米 mm
 |  | 英寸 inches
 |  | 毫米 mm
 |  |  |  |  |  |  |  |  |  |  | 1/64 |  | 0.016 | 0.397 | 33/64 |  | 0.516 | 13.097 |  | 1/32 | 0.031 | 0.794 | 17/32 | 0.531 | 13.494 |  | 3/64 | 0.047 | 1.191 | 35/64 | 0.547 | 13.891 |  | 1/16 | 0.063 | 1.588 | 9/16 | 0.563 | 14.288 |  | 5/64 | 0.078 | 1.984 | 37/64 | 0.578 | 14.684 |  | 3/32 | 0.094 | 2.381 | 19.32 | 0.594 | 15.081 |  | 7/64 | 0.109 | 2.778 | 39/64 | 0.609 | 15.478 |  | 1/8 | 0.125 | 3.175 | 5/8 | 0.625 | 15.875 |  | 9/64 | 0.141 | 3.572 | 41/64 | 0.641 | 16.272 |  | 5/32 | 0.156 | 3.969 | 21/32 | 0.656 | 16.669 |  | 11/64 | 0.172 | 4.366 | 43/64 | 0.672 | 17.066 |  | 3/16 | 0.188 | 4.763 | 11/16 | 0.688 | 17.463 |  | 13/64 | 0.203 | 5.519 | 45/64 | 0.703 | 17.859 |  | 7/32 | 0.219 | 5.556 | 23/32 | 0.719 | 18.256 |  | 15/64 | 0.234 | 5.953 | 47/64 | 0.734 | 18.653 |  | 1/4 | 0.250 | 6.350 | 3/4 | 0.750 | 19.050 |  | 17/64 | 0.266 | 6.747 | 49/64 | 0.766 | 19.447 |  | 9/32 | 0.281 | 7.144 | 25/32 | 0.781 | 19.844 |  | 19/64 | 0.297 | 7.541 | 51/64 | 0.797 | 20.241 |  | 5/16 | 0.313 | 7.938 | 13/16 | 0.813 | 20.638 |  | 21/64 | 0.328 | 8.334 | 53/64 | 0.828 | 21.034 |  | 11/32 | 0.344 | 8.731 | 27/32 | 0.844 | 21.431 |  | 23/64 | 0.359 | 9.128 | 55/64 | 0.859 | 21.828 |  | 3/8 | 0.375 | 9.525 | 7/8 | 0.875 | 22.225 |  | 25/64 | 0.391 | 9.922 | 57/64 | 0.891 | 22.622 |  | 13/32 | 0.406 | 10.319 | 29/32 | 0.906 | 23.019 |  | 27/64 | 0.422 | 10.716 | 59/64 | 0.922 | 23.416 |  | 7/16 | 0.438 | 11.113 | 15/16 | 0.938 | 23.813 |  | 29/64 | 0.453 | 11.509 | 61/64 | 0.953 | 24.209 |  | 15/32 | 0.469 | 11.906 | 31/32 | 0.969 | 24.606 |  | 31/64 | 0.484 | 12.303 | 63/64 | 0.984 | 25.003 |  | 1/2 | 0.500 | 12.700 | 1 | 1.000 | 25.40 | 
 | 1英寸 = 25.4毫米 1 inch = 25.4 millimeters
 |  |  | 
 | 英制到公制换算表 English to Metric Conversion Table
 | 
 | 单位 Units
 | 换算成 Change to
 | 乘以 Multiply by
 |  | 英寸 Inches
 | 毫米 Millimeters
 | 25.40 |  | 英寸 Inches
 | 厘米 Centimeters
 | 2.54 |  | 英寸 Inches
 | 米 Meters
 | .0254 |  | 英尺 Feet
 | 米 Meters
 | .3048 |  | 英里 Miles
 | 公里 Kilometers
 | 1.609347 |  | 平方英寸 Sq. Inches
 | 平方厘米 Sq. Centimeters
 | 6.452 |  | 平方英尺 Sq. Feet
 | 平方米 Sq. Meters
 | .0929 |  | 立方英寸 Cu. Inches
 | 立方厘米 Cu. Centimeters
 | 16.3872 |  | 立方英尺 Cu. Feet
 | 立方米 Cu. Meters
 | .02832 |  | 美制加仑 U.S. Gallons
 | 公升 Liters
 | 3.7854 |  | 磅 Pounds
 | 公斤 Kilograms
 | .45359 | 
 |  | | 公制到英制的换算表 Metric to English Conversion Table
 | 
 | 单位 Units
 | 换算成 Change to
 | 乘以 Multiply by
 |  | 毫米 Millimeters
 | 英寸 Inches
 | .03937 |  | 厘米 Centimeters
 | 英寸 Inches
 | .39371 |  | 米 Meters
 | 英寸 Inches
 | 39.371 |  | 米 Meters
 | 英尺 Feet
 | 3.281 |  | 公里 Kilometers
 | 英里 Miles
 | .62137 |  | 平方厘米 Sq. Centimeters
 | 平方英寸 Sq. Inches
 | .1550 |  | 平方米 Sq. Meters
 | 平方英尺 Sq. Feet
 | 10.7649 |  | 立方厘米 Cu. Centimeters
 | 立方英寸 Cu. Inches
 | .061 |  | 立方米 Cu. Meters
 | 立方英尺 Cu. Feet
 | 35.314 |  | 公升 Liters
 | 美制加仑 U.S. Gallons
 | .26417 |  | 公斤 Kilograms
 | 磅 Pounds
 | 2.20462 |  |  |  |  | 
 | 热塑塑料管道材料的物理性能 Physical Properties
 of Thermoplastic Piping Materials
 | 
 | ASTM测试方法 聚丙烯
 ASTM Test
 Methods
 Polypropylene
 | 性能 Properties
 | 材料 Material
 |  |  |  |  |  |  | PVC 12454-B
 | CPVC 23447-B
 | PVDF |  |  |  |  | 普通性能 General
 |  |  |  |  |  |  | D-792 | 比重 Specific Gravity
 | 1.38 | 1.50 | 1.76 | 0.905 |  |  |  | D-570 | 22oC,24小时内的 吸水率%
 Water Absorption
 % 24 Hrs. @ 73oF
 | 0.05 | 0.05 | 0.04 | 0.02 |  | 机械性能 Mechanical
 |  |  |  |  |  |  | D-638 | 22oC下的 抗拉强度psi
 Tensile Strength
 psi @ 73oF
 | 7,300 | 7,200 | 6,000 | 4,600 |  |  |  | D-638 | 在22oC x 105张力psi下 的弹性系数
 Modulus of
 Elasticity in Tension
 psi @ 73oF x 105
 | 4.2 | 3.7 | 2.1 | 2.0 |  |  |  | D-790 | 抗弯强度psi Flexural Strength
 psi
 | 14,500 | 15,600 | 9,700 | 7,000 |  |  |  | D-256 | 22oC下的(有凹口) 艾氏冲击强度
 Izod Impact
 Strength
 @ 73oF (Notched)
 | 1.1 | 2.0 | 3.8 | 0.8 |  |  |  | 热性能 Thermal
 |  |  |  |  |  |  | D-696 | 热膨胀系数 英寸/英寸/oF x 10-5
 Coefficient of
 Thermal Expansion
 in/in/oF x 10-5
 | 3.0 | 3.8 | 7.9 | 5.0 |  |  |  | C-177 | 热传导率 BTU/小时/平方英尺/oF/英寸
 Thermal
 Conductivity
 BTU/HR/Sq. Ft./oF/in
 | 1.2 | 0.95 | 0.79 | 1.2 |  |  |  | D-648 | 在温度oF @ 66 psi下的 热变形
 Heat Distortion
 Temp. oF @ 66 psi
 | NA | NA | 284 | 195 |  |  |  | D-648 | 在温度oF @ 264psi下的 热变形
 Heat Distortion
 Temp. oF @ 264 psi
 | 163 | 212 | 194 | 140 |  |  |  |  | 在连续排泄状态下的 抗热性oF
 Resistance to
 Heat oF at
 Continuous Drainage
 | 140 | 210 | 280 | 180 |  | 易燃性 Flammability
 |  |  |  |  |  |  | D-2863 | 有限氧指数(%) Limiting Oxygen
 Index (%)
 | 43 | 60 | 44 | 17 |  |  |  | E-84 | 展焰性(%) Flame Spread (%)
 | 15-20 | 15 | 0 | NA |  |  |  | E-84 | 生烟性 Smoke Generation
 | >300 | >350 | >50 | >400 |  |  |  |  | UL认证(Sub. 94) Underwriters
 Lab Rating (Sub. 94)
 | 94V-O | 94V-O | 94V-O | 94HB |  |  | 
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