钢管标准
6
0.035O.0420.0550.0680.080.1030.1230.1420.1590.1667
0.042O.050O.065O.0800.095O.122O.148O.1720.193O.2038
O 0480.0570.075O.092O.110O.142O.1730.201O.2280.249
0.0540.0640.085O.1050.124O.162O.197O.231O.2620.27710
-10.2
11
0.0660.0790.105O.129O.1540.2010.247O.2900.3310.35112
0.0720.087O.115O.1420.1690.2210.2710.320.366O.38813(12.7)
0.0790.094O.124O.154O.184O.2410.2960.3490.40.42513.5
0.0820.0980.1290.160.191O.2510.3080.3640.4180.44414
0.085O.1010.134O.1660.1980.26O.3210.3790.4350.46216
0.0970.116O.154O.1910.228O.3000.370.438O.504O.53617(3)长度见表6-8。
(5)质量见表6-12。
表6-1普通钢管的尺寸规格.无缝钢管（GB ／T17395—1998）
(1)外径和壁厚钢管尺寸分为普通钢管尺寸组(见表6-1)、精密钢管尺寸组(见表6-2)和不锈钢管尺寸组(见表6-3)。
钢管的外径分为三个系列。第一系列：标准化钢管；第二系列：非标准化为主的钢管；第三系列：特殊用途钢管。普通钢管的外径分为系
l 、2、(2)允许偏差见表6-4～表6-7。
O.243O.3200.3950.468O.5390.573
O.1030.124O.164O.2030.139O.1820.2220.261O.297O.314单位长度理论质量／(kg／m)0.060.0720.095O.1170.81 1.2 1.4 1.5外 径／mm
壁 厚／mm 系列1系列2
系列3O.25O.300.40.50.6
-17.2
180.109O.131O.174O.2160.258O.3400.4190.497O.573O.61019
0.1150.138O.1830.228O.2720.3590.4440.5270.608O.64720
0.122O.1460.193O.240O.287O.379O. 469O.556O.642O.6842l
-21.3
22O.212O.265O.3170 .418O.518O.6160. 711O.75825
O.2420.3020.3610.4770.592O.7040.815O.86925.4O.247O.3070 3670.4850.602O.716O.829O.88427
-26.9
28
O.2720.3390.4060.537O.6660.7930.9180.986
7
8
9
10(10.2)
O.518O.537O.56111
0.592O.6150.64712
O.6660.6940.7340.78913(12.7)
0.74O.774O.820O.88813.5
O.777O.8130.8630.937140.814O.8520.906O.98616
O.962 1.01 1.08 1.18 1.28 1.3617(17.2)
1.04 1.09 1.17 1.28 1.39 1.4818 1.11 1.17 1.25 1.38 1.5 1.619 1.18 1.25 1.34 1.48 1.61 1.73 1.83 1.9220
1.26 1.33 1.42 1.58 1.72 1.85 1.97
2. 072l(21.3)
1.33 1.4l 1.51 1.681,83 1.97
2.1 2.2222 1.4l 1.48 1.6 1.78 1.94 2.1 2 .24 2.3725 1.63 1.72 1.86 2.07 2.28 2.47 2.64 2.8l 2.97
3.11
O.391O. 5170.6410 .7630.884O.943O.2620.327O.3020. 399O.493O.586O.677O.721O.203O.253O.243O.3200.3950.468O.5390.573O.1030.124O.164O.203
25.4 1.66 1.75 1.89 2.11 2.32 2.52 2.7 2.87 3.03 3.18 27(26.9)
1.78 1.88
2.03 2.27 2.5 2.71 2. 92
3.11 3.29 3.45
28l.85 1.96 2.11 2.37 2.61 2.84 3.05 3.26 3.45 3.63
300.2920.3640. 4350.5760.715O.8520.987 1.05 32(31.8)O.311O.3880.465O.616O.765O.911 1.056 1.13 34(33.7)0.3310 .4130.494O.6550.8140.971 1.125 1.2 35O.341O.425O.5090.675O.8381 1.16 1.24 38O.370O.462O.553O.734O.912 1.089 1.26 1.35
40O.390O. 4870.583O.7740.962 1.148 1.33 1.42 42(42.4) 1.01 1.21 1.4 1.5 45(44.5) 1.09 1.3 1.51 1.61 48(48.3) 1.16 1.39 1.6l 1.72 5l 1.23 1.47 1.71 1.83
54 1.31 1.56 1.82 1.94
57 1.38 1.65 1.92 2.05 60(60.3) 1.46 1.74 2.02 2.16 63(63.5) 1.53 1.83 2.13 2.27
65 1.58 1.89 2.2 2.35
68 1.65 1.98 2.3 2.46
70 1.7 2.04 2.37 2.53
73 1.78 2.12 2.47 2.64 76(76.1) 1.85 2.2l 2.58 2.76
77 2.6l 2.79
80 2.71 2.9
302 2.12 2.29 2.56 2.83 3.08 3.32 3.55 3.77 3.97 32(31.8) 2.15 2.27 2.46 2.76 3.05 3.33 3.59 3.85 4.09 4.32 34(33.7) 2.29 2.43 2.63 2.96 3.27 3.58 3.87 4.14 4.41 4.66
35 2.37 2.51 2.72 3.06 3.38 3.74 4.29 4.157 4.83
38 2.59 2.75 2.98 3.35 3.72 4.07 4.41 4.74 5.05 5.35
40 2.74 2.9 3.15 3.55 3.94 4.32 4.68 5.03 5.37 5.7 42(42.4) 2.89 3.06 3.32 3.75 4.16 4.56 4.95 5.33 5.69 6.04 45(44.5) 3.11 3.3 3.58 4.04 4.49 4.93 5.36 5.77 6.17 6.56 48(48.3) 3.33 3.54 3.84 4.34 4.83 5.3 5.76 6.21 6.657.08
51 3.55 3.77 4.1 4.64 5.16 5.67 6.17 6.667.137.6
54 3.77 4.01 4.36 4.93 5.49 6.046,587.17.6l8.11
574 4.25 4.62 5.23 5.83 6.41 6.997.558.18.63 60(60.3) 4.22 4.48 4.88 5.52 6.16 6.787.397.998.589.15 63(63.5) 4.4.4 4.72 5.14 5.82 6.497.157.88.439.069.67
65 4.59 4.88 5.31 6.02 6.717.48.078.739.3810.01
68 4.81 5.11 5.57 6.317.057.778.489.179.8610.53
70 4.96 5.27 5.74 6.517.278.018.759.4710.1810.88
73 5.18 5.516 6.817.68.389.169.91lO.6611.39 76(76.1) 5.4 5.75 6.267.17.938.759.5610.3611.1411.91
77 5.47 5.82 6.347.28.058.889.710.511.312.08
80 5.7 6 06 6.67.58.389.25lO.1010.9511.7812.6
30
32(31.8)
34(33.7)
35
38
40
42(42.4)
45(44.5)9.229.77
48(48.3)lO.0410.65
5l10.8511.54
5411.6712.4313.1413.81
5712.4813.3214.1114.85
60(60.3)13.2914.2115.0715.8816.6417.36
63(63.5)
14.1115.0916.0316.9217.7618.5565
14.6515.6816.6717.6118.519.3368
15.4616.5717.6318.6419.6120.5270
16.0117.1618.2719.3320.3521.3l 22.2273
16.8218.0519.2,420.3721.4622.4923.4824.4125.376
-76.1
77
17.919.2320.5221.7522.9324.0725.1S 26.1927.1828.1l 80
18.7220.1221.4822.7924.0425.2526.4127.5228.5829.59
30
32(31.8)
34(33.7)
35
38
40
42(42.4)
45(44.5)
48(48.3)
5l
54
57
60(60.3)
63(63.5)
65
68
70
73
76(76.1)
77
8023.6724.7325.7526.7l 27.6217.6318.9420.221.4122.56
83(82.5) 2.82 3.02
85 2.89 3.09 89(88.9) 3.02 3.24
95 3.23 3.46
102(101.
3.47 3.z2
6)
108 3.68 3.94
114(114.
4.16
3)
1214,42
127
133
140(139.
7)
142(141.
3)
146
152(152.
4)
159
168(168.
3)
180(177.
8)
194(193.
7)
203
219(219.
1)
245(244.
5)
B3(82.5)
5.92
6.3 6.86
7.79
8.71
9.6210.5111.3912.2613.1285
6.07 6.46
7.047.99
8.93
9.8610.7811.6912.5813.4689(88.9) 6.36 6.777.388.389.3810.3611.3312.2813.2214.1695 6.817.247.98.9810.0411.112.1413.1714.1915.191087.778.279.0210.2611.4912.713.915.0916.2717.44114(114.
3)
8.218.749.54lO.8512.1513.4414.7215.9817.2318.471218.739.310.1411.5412.9314.315.6717.0218.3519.681279.199.7710.6612.1313.5915.0416.4817.919.3l 20.711339.6210.2411.1812.7214.2615.7817.2918.7920.2821.75140
-139.7
142-141.314610.5811.2712.314.0115.717.3919.0620.7222.3623.99152-152.415913.4215.2917.1418.9920.8222.6424.4426.24168
-168.3
180-177.8194-193.720317.22
19.6322.0324.4126.7929.1531.533.8321934.0636.632.2818.7421.0323.325.627.8230.0516.4421.5823.6725.7427.8129.8615.2317.3619.4823.9725.8927.7914.216.1818.1420.122.0425.0314.616.3718.1319.8721.623.3211.0211.7412.8216.8918.5120.1221.7223.310.2810.9511.9513.6l 15.2619.8321,4022.9610.1410.811.7813.4215.0416.6518.2415.3116.48.59.6710.8211.9613.0914.21102(101.6)7.327.8
-219.1
31.52245-244.583(82.5)19.5321.Ol 22.4423.8225.1526.4427.6728.8529.9931.078520.0721.623.0824.5l 25.8927.2328.5129.7430.9232.0689(88.9)
21.1622.7924.3625.8927.3728.830.1831.5232.834.039522.7924.5626.2927.9629.5931.1732.734.1835.6136.99102-101.610826.3l 28.4130.4632.4534.436.338.1539.9541.743.4114
-114.3
12129.8432.2634.6236.9439.2141.4343.645.7247.7949.8112731.4734.0336.55.39.0141.4343.846.1248.3850.652.7713333.135.8138.4741.0843.6546.1648.6351.0553.4155.73140
-139.7
142-141.3146
36.6239.6642.6445.5748.4651.2954.0856.8259.562.14152-152.415940.1543.546.850.0653.2756.4259.5362.5965.668.55168
-168.3180-177.8194-193.720352.0856.5260.9165.2569.5473.7877.9782.1286.2190.26
66.2170.2374.278.1281.9985.8249.6453.8658.0262.1461.0364.7168.3371.9175.4378.9145.8449.7253.5457.3156.5959.9763.366.5869.8172.9942.5946.1749.6953.1750.6853.6656.5959.4862.3265.138.2541.4344.5647.6446.9849.7252.4155.0457.6360.1735.5438.4741.3644.1946.2448.9351.5654.1556.6959.1834.9937.8840.7143.536.6238.6740.6642.6144.5146.3627.9430.1932.3834.5232.1833.9335.6337.2938.8940.4424.6926.6328.5330.3835.3638.2341.0834.0636.6
219
-219.1
245
-244.5
83(82.5)
85
89(88.9)
95
102(101.
6)
108
114(114.
3)
12170.24
12774.97
13379.783.0186.12
140(139.
7)
85.2288-8892.33
142(141.
3)
86.8190.5694.11
14689.9693.9197.66101.21104.56
152(152.
4)
94.6998.94102.98106.83110.48
159100.22104.81109.2113.39117.39121.19126.51
168(168.
3)
107.32112.35117.19121.82126.26130.5136.5
180(177.
8)
116.79122.41127.84133.07138.1142.93149.81156.26160.3
194(193.
7)127.84134.15140.27146.19151.9l157.43165.35172.83177.56
83.0890.3595.58100.76105.89110.97 63.4868.9574.3779.75
75.4680.184.6889.2293.7198.15 56.4261.2666.0470.77
203134.94141.7148.26154.62160.78166.75175.33183.47188.65200.74 219(219.
147.57155.11162.46169.61176.57183.33193.1202.41208.38222.45 1)
245(244.
168.08176.91185.54193.98202.22210.25221.94233.18240.44257.71 5)
273
299
325
-323.9
340
-339.7
351
356
-355.6
377
402
406
-406.4
426
450
457
480
500
508
530
560(559)
610
630
660
500
508
530
560(559)
610
630
660
27342.7245.92 299
325
-323.9
340
-339.7
351
356(355.
6)
377
402
406(406.
4)
426
450
457
480
500
508
530
560(559)
610
630
660
27371.0777.2483.3589.4295.43101.4107.32113.19119.01124.78 29978.1384.9391.6998.39105.05111.68118.22124.73131.19137.6 325
-323.9
340
-339.7
35192.23100.32108.36116.35124.29132.18140.02147.81155.56163.25 356
-355.6
37799.28108.02116.69125.32133.9142.44150.92159.35167.74176.07 402106.06115.41124.71133.95143.15152.3161.4170.45179.45188.4 406
-406.4
426112.58122.52132.4142.24152.03161.77171.46181.1190.7200.24 450119.08130.6l140.09150.52160.91171.24181.52191.76201.94212.08 457120.99131.69142.35152.95163.5l174.01184.47194.88205.23215.54 480127.22139.49149.71160.88172183.08194.1205.07216226.37 500132.65145.41156.12167.79179.4190.97202.48213.95225.37236.74 508134.82146.79158.7170.56182.37194.13205.85217.51229.13240.7 530140.78153.29165.74178.14190.5202.8215.06227.27239.42251.53 560(559)148.92163.16175.36188.5201.6214.64227.64240.58253.48266.33 610162.49176.97191.4205.78220.1234.38248.61262.79276.92291.01 630167.9l183.88197.8212.67227.49242.26256.98271.65286.28300.85 660176.06191.77207.43223.04238.6254.1l209.57284.99300.35315.67 273190.18204.58214.84224.9234.76244.43258.56272.45281.12295.69 299210.7222.19233.58244.58255.48266.18281.86297.1307.02330.96 325
-323.9
340 -339.7
386.57
283.01295.94308.66327.38345.66357.59
243.06256.58269.9
293.11310.72327.88339.08366.22 231.21243.99256.56268.94281.12
172.24181.34190.39 107.15116.6126135.34144.64153.89163.09
165.72
118.08126.14134.16142.12150.04157.91
93.59101.8109.97
127.85135.42142.94150.41157.83 89.2597.07104.84112.56120.22
136.27143.37150.43 85.1892.63100.02107.37114.67121.92129.12
351251.73265.79
279.64293.3l 306.77320.04339.57358.66371.13401.49356
-355.6377272.25287.58
302.73317.67332.42346.97368.42389.43403.19436.76402291.97308.55
324.92341.1357.08372.86396.16419.02434.02470.66406(406.
4)295.15311.92
328.49344.87361.04377.02400.63423.78438.97476.09426310.91328.67
346.23363.59380.75397.72422.8447.43463.61503.22450329.85348.79
367.53386.08404.42422.57449.43475.84493.2535.77457335.4354.68
373.77392.66411.35429.85457.22484.15501.86545.27480353.53373.94
394.17414.19436.02453.64482.72511.35530.19576.46500369.31390.71
411.92432.93453.74474.36504.91535.02554.85603.59508375.64397.44
419.05440.45461.66482.67513.82544.53564.75614.44530392.98415.87
438.55461.04483.34505.43538.2570.53591.84644.28560
-599610456.14482.97
509.6536.04562.28588.32627.02665.27690.52752.79630471.92499.74
527.36554.79582.01609.04649.2l 688.94715.18779.92660495.6524.9
554582.9611.6640.11682.51724.46752.18820.61O.5-0.81
-1.2 1.5-1.8 2.O -2.2 2.5-2.834O.043O.0630.074
O.08350.0560.083O.099
O.11260.0680.1030.123
O.142O.166O.186O.1978O.092O.1420.173O.2010.240.2750.296O.315O.339
系列2系列3单位长度理注：1.括号内尺寸表示相应的英制规格。
2.通常应采用公称尺寸，不推荐采用英制尺寸。
3.理论质量按密度为7.85kg ／dm3计算。
表6-2 紧密钢管的尺寸规格外径／mm
壁厚/mm 536.53571.53606.08628.87684.97416.68441.05
465.21489.19512.96364.6377.32408.27255.69269.99
284.1298.01311.72325.23345.14
1O0.117O.182O.2220.26O.314O.3640.395O.423O.462
120.142O.2210.271O.3200.388O.453O.493O.532O.5860.6350.666 12.70.150.235O.289O.340O.414O.484O.528O.570O.6290.6840.718
14O.166O.260O.3210.3790.462O.542O.592O.640O.7090.7730.814 16O.1910.3O.370O.4380.536O.630O.691O.7490.8320.9110.962 18O.216O.339O.419O.497O.610O.7190.7890.857O.956 1.05 1.1l 20O.240O.379O.4690.556O.684O.808O.8880.966 1.08 1.19 1.26 220.2650.4180.518O.616O.758O.8970.986 1.07 1.2 1.33 1.41 250.3020.4770.5920.7040.869 1.03 1.13 1.24 1.39 1.53 1.63 28O.339O.5370.6660.7930.98 1.16 1.28 1.4 1.57 1.74 1.85 30O.364O.5760.715O.852 1.05 1.25 1.38 1.51 1.7 1.882 32O.388O.616O.765O.91l 1.13 1.34 1.48 1.62 1.82 2.02 2.15 350.425O.6750.8381 1.24 1.47 1.63 1.782 2.22 2.37 38O.462O.734O.912 1.09 1.35 1.61 1.78 1.94 2.19 2.43 2.59 40O .87O.773O.962 1.15 1.42 1.7 1.87 2.05 2.31 2.57 2.74 42O.813 1.01 1.21 1.5 1.78 1.97 2.16 2.44 2.71 2.89 45O.872 1.09 1.3 1.61 1.92 2.12 2.32 2.62 2.91 3.11 48 1.16 1.39 1.72 2.05 2.27 2.48 2.8l 3.12 3.33 500.971 1.21 1.4.4 1.79 2.14 2.37 2.59 2.93 3.26 3.48系系
列列
23 4
5
6
8
1O 论质量／(kg/m)
12.5-1416
外径／mm壁厚/mm 5-5.5678-910-11
12
12.7
14
16
18
20
1.8522
2.125
2.47 2.64 2.8128
2.84
3.05 3.26 3.63 3.9530
3.08 3.32 3.55 3.97
4.3432
3.33 3.59 3.85
4.32 4.7435
3.74
4.29 4.83
5.3338
4.07 4.41 4.74
5.35 5.92
6.44 6.9140
4.32 4.68
5.03 5.7
6.31 6.88
7.442
4.56 4.95
5.33
6.04 6.71
7.327.8945
4.93
5.36 5.776,567.37.998.639.22lO 48
5.3 5.76
6.21
7.087.89
8.66
9.371010.950
5.55
6.04 6.51
7.42
8.29
9.19.8610.611.6系系
列列
23
55
1.07 1.33 1.59 1.98
2.36 2.61 2.86
3.24 3.6 3.8560
1.17 1.46 1.74
2.16 2.58 2.86
3.14 3.55 3.95
4.2263
1.23 1.53 1.83
2.27 2.72
3.01 3.3 3.73
4.16 4.4470
1.36 1.7
2.04 2.53
3.03 3.35 3.68
4.16 4.64 4.9676
1.48 1.85
2.21 2.76
3.29 3.654
4.53
5.05 5.480 1.56 1.95 2.33 2.9 3.47 3.85 4.22 4.78 5.33 5.7单位长度理 2.5-2.82．O -2.23外径／mm
壁厚/mm 0.5(O ．8)1
．O -1.2 1.5-1.8
90
2.63
3.27 3.92
4.34 4.76
5.39
6.02 6.44100
2.92
3.64
4.36 4.83
5.31
6.01 6.71
7.18110
3.22
4.01 4.8
5.33 5.85
6.63
7.47.92120
5.25 5.82
6.39
7.24
8.098.66130
5.69
6.31 6.93
7.86
8.78
9.4140
6.13 6.8l
7.48
8.48
9.4710.1150
6.58
7.3
8.02
9.0910.210.9160
7.027.798.569.7110.911.6170
180
190
200
220
240
260
系系列列
23
55 6.17
6.71
7.25
8.29
9.2710.211.111.913.114.260 6.78
7.397.999.1510.311.312.313.314.615.917.4637.15
7.88.439.6710.91213.114.115.616.918.6708.01
8.759.4710.912.213.514.81617.719.321.3768.75
9.5610.411.913.414.916.317.619.621.423.7809.25
10.110.912.614.215.817.318.720.822.825.39010.5
11.512.414.316.218
．O 19.721.423.926.229.210011.712.813.916.118.220.222.224.12729.731.1注：1.钢的密度7.85kg ／dm3。
2.括号内尺寸不推荐使用。
lO -11单位长度理12.5-1416外径／mm
壁厚/mm 5
-5.56-78-9
11012.914.215.417.820.122.424.726.930.133.137.1 12014.215.516.919.522.124.627.129.633.136.641 13015.416.918.321.224.126.929.632.336.24045 14016.618.219.8232629.132.13539.343.548.9 15017.919.621.324.72831.334.537.742.446.952.9 16019.12122.826.43033.53740.445.550,456.8 17020.322.324.328.13235,739.543.148.653.960.8 18021.623.725.729.933.93841.945.851.657.364.7 1902527.231.635.940.244.448.654.760.868.7 20028.733.337.942.446.951.357.864.272.6 22036.841.846.851.856.764.071.180.5
24040.245.851.356.762.170.178.088.4
26043.749.755.761.767.576.384.996.3注：1.钢的密度7.85kg／dm3。
2.括号内尺寸不推荐使用。
表6-3不锈钢管的尺寸规格
外 径／mm壁 厚／mm 系列l系列2系列3 1.O 1.2 1.4 1.5 1.62 2.2(2.3) 2.5(2.6) 2.8(2.9) 3.O 6●●
7●●
8●●
9●●
lO(10.2)●●●●●●
12●●●●●●
12.7●●●●●●●●●●
13(13.5)●●●●●●●●●●14●●●●●●●●●●16●●●●●●●●●●
17(17.2)●●●●●●●●●●
18●●●●●●●●●●19●●●●●●●●●●
20●●●●●●●●●●2l(2l.3)●●●●●●●●●●22●●●●●●●●●●24●●●●●●●●●●
25●●●●●●●●●●
25.4●●●●●●●●●●27(26.9)●●●●●●●●●●30●●●●●●●●●●32(31.8)●●●●●●●●●●34(33.7)●●●●●●●●●●35●●●●●●●●●●38●●●●●●●●●●
40●●●●●●●●●●42(42.4)●●●●●●●●●●45(44.5)●●●●●●●●●●48(48.3)●●●●●●●●●●51●●●●●●●●●●54●●●●●●57●●●●●●60(60.3)●●●●●●64(63.5)●●●●●●68●●●●●●
70●●●●●●
73●●●●●●76(76.1)●●●●●●83(82.5)●●●●●●89(88.9)●●●●●●95●●●●●●
102(101.
●●●●●●
6)
108●●●●●●
114(114.
●●●●●●
3)
127●●●●●●
133●●●●●●
140(139.
●●●●●●
7)
146●●●●●●
152●●●●●●
159●●●●●●
168(168.
●●●●●●
3)
180●●●●●
194●●●●●
219(219.
●●●●●
1)
245●●●●●273●●●●●
325(323.
●●●
9)
351●●●
356(355.
●●●
6)
377●●●
406(406.
●●●
4)
426
外 径／mm壁 厚／mm 系列l系列2系列37.58199.0(8.8)9.5101112(12.5)14(14.2)15 6
7
8
9
lO(10.2)
12
12.7
13(13.5)
14
16
17(17.2)
18
19
20
2l(2l.3)
22
24
25
25.4
27(26.9)
30
32(31.8)
34(33.7)
35
38
40
42(42.4)●
45(44.5)●●●