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公英制对照表

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十进英寸公制十进英寸公制公制公制DECIMALINCHMMDECIMALINCHMMMMMM1/64.0160.4033/64.51613.1025.40228.601/32.0310.7917/32.53113.941/431.751/4234.953/64.0471.1935/64.54713.8911/238.1091/2241.30.6301.59.56314.2913/444.4593/4247.655/64.0781.9837/64.57814.6850.80254.003/32.0942.3819/32.59415.081/457.151/4260.357/64.1092.7839/64.60915.4821/263.50101/2266.70.1253.18.62515.8823/469.85103/4273.059/64.1413.5741/64.64116.2776.205/32.1563.9721/32.65616.671/482.5511/64.1724.3743/64.67217.0731/288.90.1884.76.68817.4633/495.2513/64.2035.1645/64.70317.86101.607/32.2195.5623.32.71918.261/4107.9515/64.2345.9547/64.73418.6541/2114.30.2506.35.75019.0543/4120.6517/64.2666.7549/64.76619.44127.009/32.2817.1425/32.78119.841/4133.3519/64.2977.5451/64.79720.2451/2139.70.3137.94.81320.6453/4146.0521/64.3288.3353/64.82821.03152.4011/32.3448.7327/64.84421.431/4158.7523/64.3599.1355/64.85921.8361/2165.10.3759.53.87522.2363/4171.4525/64.3919.9257/64.89122.62177.8013/32.40610.3229/32.90623.021/4184.1527/64.42210.7259/64.92223.4271/2190.50.43811.11.93823.8173/4196.8529/64.45311.5161/64.95324.21203.2015/32.46911.9131/32.96924.611/4209.5531/64.48412.3063/64.98425.0081/2215.90.50012.701.00025.4083/4222.259

10

7

81

2

3

4

5

6

7/16

1/29/16

5/8

11/16

3/4

13/16

7/8

15/16

11/16

1/8

3/16

1/4

5/16

3/8八分英寸八分英寸八分英寸八分英寸FRACTIONAL INCHFRACTIONAL INCHFRACTIONALINCHFRACTIONALINCH

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英制公制对照表

英制公制对照表

尺寸代号 每英寸牙数 螺 距 螺纹 直 径

（in) n p 大径D、d 小径D1、d1

1/16 28 0.907 7.723 6.561

1/8 28 0.907 9.728 8.566

1/4 19 1.337 13.157 11.445

3/8 19 1.337 16.662 14.95

1/2 14 1.814 20.955 18.631

5/8 14 1.814 22.911 20.587

3/4 14 1.814 26.441 24.117

7/8 14 1.814 30.201 27.877

1 11 2.309 33.249 30.291

1-1/8 11 2.309 37.897 34.939

1-1/4 11 2.309 41.91 38.952

1-1/2 11 2.309 47.803 44.845

1-3/4 11 2.309 53.746 50.788

2 11 2.309 59.614 56.656

2-1/4 11 2.309 65.71 62.752

2-1/2 11 2.309 75.184 72.226

2-3/4 11 2.309 81.534 78.578

3 11 2.309 87.884 84.926

3-1/2 11 2.309 100.33 97.372

4 11 2.309 113.03 110.072

5 11 2.309 138.43 135.472

6 11 2.309 163.83 160.872

PVC管件和镀锌管件公英制对照表

PVC管件和镀锌管件公英制对照表

公称内径公称内径DN151/24分DN151/24分DN203/46分DN203/46分DN2511寸DN2511寸DN321 1/41.2寸DN321 1/41.2寸DN401 1/21.5寸DN401 1/21.5寸DN5022寸DN5022寸DN652 1/22.5寸DN652 1/22.5寸DN8033寸DN8033寸DN10044寸DN10044寸DN12555寸DN12555寸DN15066寸DN15066寸DN20088寸DN20088寸公称内径公称内径DN201/24分DN201/24分DN253/46分DN253/46分DN3211寸DN3211寸DN401 1/41.2寸DN401 1/41.2寸DN501 1/21.5寸DN501 1/21.5寸DN6322寸DN6322寸DN752 1/22.5寸DN752 1/22.5寸DN9033寸DN9033寸DN11044寸DN11044寸DN12555寸DN12555寸DN15066寸DN15066寸DN20088寸DN20088寸尺寸（英寸）镀锌管件公英制对照表镀锌管件公英制对照表尺寸（英寸）PVC管件公英制对照表PVC管件公英制对照表尺寸（英寸）尺寸（英寸）

螺纹管件公英制对照尺寸大全

螺纹管件公英制对照尺寸大全

螺纹管件尺寸表

1. 平头外丝（短管）国际通用系列钢管(英制管) Inch Pipe国内沿用系列钢管

(公制管) Metric Pipe

C 三种型式，短管(公制管)仅有 C 型04 不锈钢(英制管),Φ18*2 L100 20 钢(公制管)2. 单头螺纹短节公称通径Nominal Diameter外径Outside Diameter DSch40 STDSch80XSSch160 XXSL

DNNPS

81/413.5○

6090120150180103/817.2○ 151/221.3○○

203/426.7○○

25133.4○○

321.1/442.2○○

401.1/248.3○○

50260.3○○

公称通径Nominal Diameter外径Outside Diameter D厚度Thickness长度LengthDN

1014

2-560901201501801518

2025

2532

3238

4045

5057国际通用系列钢管(英制管) Inch Pipe国内沿用系列钢管(公制管) Metric Pipe

C 三种型式，短管(公制管)仅有 C 型04 不锈钢(英制管),Φ18*2 L100 20 钢(公制管)3. 双头螺纹短节

国际通用系列钢管(英制管) Inch Pipe公称通径Nominal Diameter外径Outside Diameter DSch40 STDSch80XSSch160 XXSLDNNPS

81/413.5○

6090120150180103/817.2○ 151/221.3○○

203/426.7○○

25133.4○○

321.1/442.2○○

401.1/248.3○○

50260.3○○

公称通径Nominal Diameter外径Outside Diameter D厚度Thickness长度LengthDN

1014

2-560901201501801518

2025

2532

3238

4045

5057

焊接钢管公英制尺寸对照规格表

焊接钢管公英制尺寸对照规格表

焊接钢管公英制尺寸对照规格表

焊接钢管公英制尺寸对照规格表

一.D N焊接管规格：

焊管尺寸公径通径规格(外径×壁厚) 执行标准

焊管4分系列DN15 20～21×0.7～2.75 GB/T3091-2008 焊管6分系列DN20 25～26.8×0.7～2.75 GB/T3091-2008 焊管1寸系列DN25 32～33.5×0.8～3.25 GB/T3091-2008 焊管1.2寸系列DN32

40～42××0.9～3.25 GB/T3091-2008 焊管1.5寸系列DN40 47～48×1.0～3.25 GB/T3091-2008 焊管2寸系列DN50 59～60×1.3～3.5 GB/T3091-2008 焊管2.5寸系列DN65 75×1.5～3.75

GB/T3091-2008 焊管3寸系列DN80 88×1.5～4.0 GB/T3091-2008

焊管4寸系列DN100 114×1.1～4.0 GB/T3091-2008 焊管5寸系列DN125 140×2.2～4.5 GB/T3091-2008 焊管6寸系列DN150

165×1.4～4.5 GB/T3091-2008 焊管8寸系列DN200 219×2.0～6.0

GB/T3091-2008