Tiêu chuẩn ASTM A53

Tại thị trường Việt Nam, các ống thép tròn đen/mạ kẽm có đường kính lớn hơn DN100 đều được sản xuất theo tiêu chuẩn ASTM A53 hoặc đôi khi ống nhập khẩu được sơn mác API 5L

NPS Designator	DN Designator	Outside Diameter In.[mm]	Nominal Wall Thickness, in. [mm]	Nominal Weight [Mass] per Unit Length, Plain End, lb/ft [kg/m]	Weight Class	Schedule No	Test Pressure,A psi [kPa]
NPS Designator	DN Designator	Outside Diameter In.[mm]	Nominal Wall Thickness, in. [mm]		Weight Class	Schedule No	Grade A	Grade B
1⁄8	6	0.405 [10.3]	0.068 [1.73]	0.24 [0.37]	STD	40	700 [4800]	700 [4800]
			0.095 [2.41]	0.31 [0.47]	XS	80	850 [5900]	850 [5900]
1⁄4	8	0.540 [13.7]	0.088 [2.24]	0.43 [0.63]	STD	40	700 [4800]	700 [4800]
			0.119 [3.02]	0.54 [0.80]	XS	80	850 [5900]	850 [5900]
3⁄8	10	0.675 [17.1]	0.091 [2.31]	0.57 [0.84]	STD	40	700 [4800]	700 [4800]
			0.126 [3.20]	0.74 [1.10]	XS	80	850 [5900]	850 [5900]
1⁄2	15	0.840 [21.3]	0.109 [2.77]	0.85 [1.27]	STD	40	700 [4800]	700 [4800]
			0.147 [3.73]	1.09 [1.62]	XS	80	850 [5900]	850 [5900]
			0.188 [4.78]	1.31 [1.95]	…	160	900 [6200]	900 [6200]
			0.294 [7.47]	1.72 [2.55]	XXS	…	1000 [6900]	1000 [6900]
3⁄4	20	1.050 [26.7]	0.113 [2.87]	1.13 [1.69]	STD	40	700 [4800]	700 [4800]
			0.154 [3.91]	1.48 [2.20]	XS	80	850 [5900]	850 [5900]
			0.219 [5.56]	1.95 [2.90]	…	160	950 [6500]	950 [6500]
			0.308 [7.82]	2.44 [3.64]	XXS	…	1000 [6900]	1000 [6900]
1	25	1.315 [33.4]	0.133 [3.38]	1.68 [2.50]	STD	40	700 [4800]	700 [4800]
			0.179 [4.55]	2.17 [3.24]	XS	80	850 [5900]	850 [5900]
			0.250 [6.35]	2.85 [4.24]	…	160	950 [6500]	950 [6500]
			0.358 [9.09]	3.66 [5.45]	XXS	…	1000 [6900]	1000 [6900]
11⁄4	32	1.660 [42.2]	0.140 [3.56]	2.27 [3.39]	STD	40	1200 [8300]	1300 [9000]
			0.191 [4.85]	3.00 [4.47]	XS	80	1800 [12 400]	1900 [13 100]
			0.250 [6.35]	3.77 [5.61]	…	160	1900 [13 100]	2000 [13 800]
			0.382 [9.70]	5.22 [7.77]	XXS	…	2200 [15 200]	2300 [15 900]
11⁄2	40	1.900 [48.3]	0.145 [3.68]	2.72 [4.05]	STD	40	1200 [8300]	1300 [9000]
			0.200 [5.08]	3.63 [5.41]	XS	80	1800 [12 400]	1900 [13 100]
			0.281 [7.14]	4.86 [7.25]	…	160	1950 [13 400]	2050 [14 100]
			0.400 [10.16]	6.41 [9.56]	XXS	…	2200 [15 200]	2300 [15 900]
2	50	2.375 [60.3]	0.154 [3.91]	3.66 [5.44]	STD	40	2300 [15 900]	2500 [17 200]
			0.218 [5.54]	5.03 [7.48]	XS	80	2500 [17 200]	2500 [17 200]
			0.344 [8.74]	7.47 [11.11]	…	160	2500 [17 200]	2500 [17 200]
			0.436 [11.07]	9.04 [13.44]	XXS	…	2500 [17 200]	2500 [17 200]
21⁄2	65	2.875 [73.0]	0.203 [5.16]	5.80 [8.63]	STD	40	2500 [17 200]	2500 [17 200]
			0.276 [7.01]	7.67 [11.41]	XS	80	2500 [17 200]	2500 [17 200]
			0.375 [9.52]	10.02 [14.90]	…	160	2500 [17 200]	2500 [17 200]
			0.552 [14.02]	13.71 [20.39]	XXS	…	2500 [17 200]	2500 [17 200]
3	80	3.500 [88.9]	0.125 [3.18]	4.51 [6.72]	…	…	1290 [8900]	1500 [1000]
			0.156 [3.96]	5.58 [8.29]	…	…	1600 [11 000]	1870 [12 900]
			0.188 [4.78]	6.66 [9.92]	…	…	1930 [13 330]	2260 [15 600]
			0.216 [5.49]	7.58 [11.29]	STD	40	2220 [15 300]	2500 [17 200]
			0.250 [6.35]	8.69 [12.93]	…	…	2500 [17 200]	2500 [17 200]
			0.281 [7.14]	9.67 [14.40]	…	…	2500 [17 200]	2500 [17 200]
			0.300 [7.62]	10.26 [15.27]	XS	80	2500 [17 200]	2500 [17 200]
			0.438 [11.13]	14.34 [21.35]	…	160	2500 [17 200]	2500 [17 200]
			0.600 [15.24]	18.60 [27.68]	XXS	…	2500 [17 200]	2500 [17 200]
31⁄2	90	4.000 [101.6]	0.125 [3.18]	5.18 [7.72]	…	…	1120 [7700]	1310 [19 000]
			0.156 [3.96]	6.41 [9.53]	…	…	1400 [6700]	1640 [11 300]
			0.188 [4.78]	7.66 [11.41]	…	…	1690 [11 700]	1970 [13 600]
			0.226 [5.74]	9.12 [13.57]	STD	40	2030 [14 000]	2370 [16 300]
			0.250 [6.35]	10.02 [14.92]	…	…	2250 [15 500]	2500 [17 200]
			0.281 [7.14]	11.17 [16.63]	…	…	2500 [17 200]	2500 [17 200]
			0.318 [8.08]	12.52 [18.63]	XS	80	2800 [19 300]	2800 [19 300]
4	100	4.500 [114.3]	0.125 [3.18]	5.85 [8.71]	…	…	1000 [6900]	1170 [8100]
			0.156 [3.96]	7.24 [10.78]	…	…	1250 [8600]	1460 [10 100]
			0.188 [4.78]	8.67 [12.91]	…	…	1500 [10 300]	1750 [12 100]
			0.219 [5.56]	10.02 [14.91]	…	…	1750 [12 100]	2040 [14 100]
			0.237 [6.02]	10.80 [16.07]	STD	40	1900 [13 100]	2210 [15 200]
			0.250 [6.35]	11.36 [16.90]	…	…	2000 [13 800]	2330 [16 100]
			0.281 [7.14]	12.67 [18.87]	…	…	2250 [15 100]	2620 [18 100]
			0.312 [7.92]	13.97 [20.78]	…	…	2500 [17 200]	2800 [19 300]

					0.337 [8.56]	15.00 [22.32]	XS	80	2700 [18 600]	2800 [19 300]
					0.438 [11.13]	19.02 [28.32]	…	120	2800 [19 300]	2800 [19 300]
					0.531 [13.49]	22.53 [33.54]	…	160	2800 [19 300]	2800 [19 300]
					0.674 [17.12]	27.57 [41.03]	XXS	…	2800 [19 300]	2800 [19 300]
5		125		5.563 [141.3]	0.156 [3.96]	9.02 [13.41]	…	…	1010 [7000]	1180 [8100]
					0.188 [4.78]	10.80 [16.09]	…	…	1220 [8400]	1420 [9800]
					0.219 [5.56]	12.51 [18.61]	…	…	1420 [9800]	1650 [11 400]
					0.258 [6.55]	14.63 [21.77]	STD	40	1670 [11 500]	1950 [13 400]
					0.281 [7.14]	15.87 [23.62]	…	…	1820 [12 500]	2120 [14 600]
					0.312 [7.92]	17.51 [26.05]	…	…	2020 [13 900]	2360 [16 300]
					0.344 [8.74]	19.19 [28.57]	…	…	2230 [15 400]	2600 [17 900]
					0.375 [9.52]	20.80 [30.94]	XS	80	2430 [16 800]	2800 [19 300]
					0.500 [12.70]	27.06 [40.28]	…	120	2800 [19 300]	2800 [19 300]
					0.625 [15.88]	32.99 [49.11]	…	160	2800 [19 300]	2800 [19 300]
					0.750 [19.05]	38.59 [57.43]	XXS	…	2800 [19 300]	2800 [19 300]
6		150		6.625 [168.3]	0.188 [4.78]	12.94 [19.27]	…	…	1020 [7000]	1190 [8200]
					0.219 [5.56]	15.00 [22.31]	…	…	1190 [8200]	1390 [9600]
					0.250 [6.35]	17.04 [25.36]	…	…	1360 [9400]	1580 [10 900]
					0.280 [7.11]	18.99 [28.26]	STD	40	1520 [10 500]	1780 [12 300]
					0.312 [7.92]	21.06 [31.32]	…	…	1700 [11 700]	1980 [13 700]
					0.344 [8.74]	23.10 [34.39]	…	…	1870 [12 900]	2180 [15 000]
					0.375 [9.52]	25.05 [37.28]	…	…	2040 [14 100]	2380 [16 400]
					0.432 [10.97]	28.60 [42.56]	XS	80	2350 [16 200]	2740 [18 900]
					0.562 [14.27]	36.43 [54.20]	…	120	2800 [19 300]	2800 [19 300]
					0.719 [18.26]	45.39 [67.56]	…	160	2800 [19 300]	2800 [19 300]
					0.864 [21.95]	53.21 [79.22]	XXS	…	2800 [19 300]	2800 [19 300]
8		200		8.625 [219.1]	0.188 [4.78]	16.96 [25.26]	…	…	780 [5400]	920 [6300]
					0.203 [5.16]	18.28 [27.22]	…	…	850 [5900]	1000 [6900]
					0.219 [5.56]	19.68 [29.28]	…	…	910 [6300]	1070 [7400]
					0.250 [6.35]	22.38 [33.31]	…	20	1040 [7200]	1220 [8400]
					0.277 [7.04]	24.72 [36.31]	…	30	1160 [7800]	1350 [9300]
					0.312 [7.92]	27.73 [41.24]	…	…	1300 [9000]	1520 [10 500]
					0.322 [8.18]	28.58 [42.55]	STD	40	1340 [9200]	1570 [10 800]
					0.344 [8.74]	30.45 [45.34]	…	…	1440 [9900]	1680 [11 600]
					0.375 [9.52]	33.07 [49.20]	…	…	1570 [10 800]	1830 [12 600]
					0.406 [10.31]	35.67 [53.08]	…	60	1700 [11 700]	2000 [13 800]
					0.438 [11.13]	38.33 [57.08]	…	…	1830 [12 600]	2130 [14 700]
					0.500 [12.70]	43.43 [64.64]	XS	80	2090 [14 400]	2430 [16 800]
					0.594 [15.09]	51.00 [75.92]	…	100	2500 [17 200]	2800 [19 300]
					0.719 [18.26]	60.77 [90.44]	…	120	2800 [19 300]	2800 [19 300]
					0.812 [20.62]	67.82 [100.92]	…	140	2800 [19 300]	2800 [19 300]
					0.875 [22.22]	72.49 [107.88]	XXS	…	2800 [19 300]	2800 [19 300]
					0.906 [23.01]	74.76 [111.27]	…	160	2800 [19 300]	2800 [19 300]
10		250		10.750 [273.0]	0.188 [4.78]	21.23 [31.62]	…	…	630 [4300]	730 [5000]
					0.203 [5.16]	22.89 [34.08]	…	…	680 [4700]	800 [5500]
					0.219 [5.56]	24.65 [36.67]	…	…	730 [5000]	860 [5900]
					0.250 [6.35]	28.06 [41.75]	…	20	840 [5800]	980 [6800]
					0.279 [7.09]	31.23 [46.49]	…	…	930 [6400]	1090 [7500]
					0.307 [7.80]	34.27 [51.01]	…	30	1030 [7100]	1200 [8300]
					0.344 [8.74]	38.27 [56.96]	…	…	1150 [7900]	1340 [9200]
					0.365 [9.27]	40.52 [60.29]	STD	40	1220 [8400]	1430 [9900]
					0.438 [11.13]	48.28 [71.87]	…	…	1470 [10 100]	1710 [11 800]
					0.500 [12.70]	54.79 [81.52]	XS	60	1670 [11 500]	1950 [13 400]
					0.594 [15.09]	64.49 [95.97]	…	80	1990 [13 700]	2320 [16 000]
					0.719 [18.26]	77.10 [114.70]	…	100	2410 [16 600]	2800 [19 300]
					0.844 [21.44]	89.38 [133.00]	…	120	2800 [19 300]	2800 [19 300]
					1.000 [25.40]	104.23 [155.09]	XXS	140	2800 [19 300]	2800 [19 300]
					1.125 [28.57]	115.75 [172.21]	…	160	2800 [19 300]	2800 [19 300]
12		300		12.750 [323.8]	0.203 [5.16]	27.23 [40.55]	…	…	570 [3900]	670 [4600]
					0.219 [5.56]	29.34 [43.63]	…	…	620 [4300]	720 [5000]
					0.250 [6.35]	33.41 [49.71]	…	20	710 [4900]	820 [5700]
					0.281 [7.14]	37.46 [55.75]	…	…	790 [5400]	930 [6400]
					0.312 [7.92]	41.48 [61.69]	…	…	880 [6100]	1030 [7100]
					0.330 [8.38]	43.81 [65.18]	…	30	930 [6400]	1090 [7500]
					0.344 [8.74]	45.62 [67.90]	…	…	970 [6700]	1130 [7800]
					0.375 [9.52]	49.61 [73.78]	STD	…	1060 [7300]	1240 [8500]
					0.406 [10.31]	53.57 [79.70]	…	40	1150 [7900]	1340 [9200]
					0.438 [11.13]	57.65 [85.82]	…	…	1240 [8500]	1440 [9900]
					0.500 [12.70]	65.48 [97.43]	XS	…	1410 [9700]	1650 [11 400]
					0.562 [14.27]	73.22 [108.92]	…	60	1590 [11 000]	1850 [12 800]
					0.688 [17.48]	88.71 [132.04]	…	80	1940 [13 400]	2270 [15 700]
					0.844 [21.44]	107.42 [159.86]	…	100	2390 [16 500]	2780 [19 200]
					1.000 [25.40]	125.61 [186.91]	XXS	120	2800 [19 300]	2800 [19 300]
					1.125 [28.57]	139.81 [208.00]	…	140	2800 [19 300]	2800 [19 300]
					1.312 [33.32]	160.42 [238.68]	…	160	2800 [19 300]	2800 [19 300]
14			350	14.000 [355.6]	0.210 [5.33]	30.96 [46.04]	…	…	540 [3700]	630 [4300]
					0.219 [5.56]	32.26 [47.99]	…	…	560 [3900]	660 [4500]
					0.250 [6.35]	36.75 [54.69]	…	10	640 [4400]	750 [5200]
					0.281 [7.14]	41.21 [61.35]	…	…	720 [5000]	840 [5800]
					0.312 [7.92]	45.65 [67.90]	…	20	800 [5500]	940 [6500]
					0.344 [8.74]	50.22 [74.76]	…	…	880 [6100]	1030 [7100]
					0.375 [9.52]	54.62 [81.25]	STD	30	960 [6600]	1120 [7700]
					0.438 [11.13]	63.50 [94.55]	…	40	1130 [7800]	1310 [9000]
					0.469 [11.91]	67.84 [100.94]	…	…	1210 [8300]	1410 [9700]
					0.500 [12.70]	72.16 [107.39]	XS	…	1290 [8900]	1500 [10 300]
					0.594 [15.09]	85.13 [126.71]	…	60	1530 [10 500]	1790 [12 300]
					0.750 [19.05]	106.23 [158.10]	…	80	1930 [13 300]	2250 [15 500]
					0.938 [23.83]	130.98 [194.96]	…	100	2410 [16 600]	2800 [19 300]
					1.094 [27.79]	150.93 [224.65]	…	120	2800 [19 300]	2800 [19 300]
					1.250 [31.75]	170.37 [253.56]	…	140	2800 [19 300]	2800 [19 300]
					1.406 [35.71]	189.29 [281.70]	…	160	2800 [19 300]	2800 [19 300]
					2.000 [50.80]	256.56 [381.83]	…	…	2800 [19 300]	2800 [19 300]
					2.125 [53.97]	269.76 [401.44]	…	…	2800 [19 300]	2800 [19 300]
					2.200 [55.88]	277.51 [413.01]	…	…	2800 [19 300]	2800 [19 300]
					2.500 [63.50]	307.34 [457.40]	…	…	2800 [19 300]	2800 [19 300]
16	400			16.000 [406.4]	0.219 [5.56]	36.95 [54.96]	…	…	490 [3400]	570 [3900]
					0.250 [6.35]	42.09 [62.64]	…	10	560 [3900]	660 [4500]
					0.281 [7.14]	47.22 [70.30]	…	…	630 [4300]	740 [5100]
					0.312 [7.92]	52.32 [77.83]	…	20	700 [4800]	820 [5700]
					0.344 [8.74]	57.57 [85.71]	…	…	770 [5300]	900 [6200]
					0.375 [9.52]	62.64 [93.17]	STD	30	840 [5800]	980 [6800]
					0.438 [11.13]	72.86 [108.49]	…	…	990 [6800]	1150 [7900]
					0.469 [11.91]	77.87 [115.86]	…	…	1060 [7300]	1230 [8500]
					0.500 [12.70]	82.85 [123.30]	XS	40	1120 [7700]	1310 [9000]
					0.656 [16.66]	107.60 [160.12]	…	60	1480 [10 200]	1720 [11 900]
					0.844 [21.44]	136.74 [203.53]	…	80	1900 [13 100]	2220 [15 300]
					1.031 [26.19]	164.98 [245.56]	…	100	2320 [16 000]	2710 [18 700]
					1.219 [30.96]	192.61 [286.64]	…	120	2740 [18 900]	2800 [19 300]
					1.438 [36.53]	223.85 [333.19]	…	140	2800 [19 300]	2800 [19 300]
					1.594 [40.49]	245.48 [365.35]	…	160	2800 [19 300]	2800 [19 300]
18	450			18.000 [457]	0.250 [6.35]	47.44 [70.60]	…	10	500 [3400]	580 [4000]
					0.281 [7.14]	53.23 [79.24]	…	…	560 [3900]	660 [4500]
					0.312 [7.92]	58.99 [87.75]	…	20	620 [4300]	730 [5000]
					0.344 [8.74]	64.93 [96.66]	…	…	690 [4800]	800 [5500]
					0.375 [9.52]	70.65 [105.10]	STD	…	750 [5200]	880 [6100]
					0.406 [10.31]	76.36 [113.62]	…	…	810 [5600]	950 [6500]
					0.438 [11.13]	82.23 [122.43]	…	30	880 [6100]	1020 [7000]
					0.469 [11.91]	87.89 [130.78]	…	…	940 [6500]	1090 [7500]
					0.500 [12.70]	93.54 [139.20]	XS	…	1000 [6900]	1170 [8100]
					0.562 [14.27]	104.76 [155.87]	…	40	1120 [7700]	1310 [9000]
					0.750 [19.05]	138.30 [205.83]	…	60	1500 [10 300]	1750 [12 100]
					0.938 [23.83]	171.08 [254.67]	…	80	1880 [13 000]	2190 [15 100]
					1.156 [29.36]	208.15 [309.76]	…	100	2310 [15 900]	2700 [18 600]
					1.375 [34.92]	244.37 [363.64]	…	120	2750 [19 000]	2800 [19 300]
					1.562 [39.67]	274.48 [408.45]	…	140	2800 [19 300]	2800 [19 300]
					1.781 [45.24]	308.79 [459.59]	…	160	2800 [19 300]	2800 [19 300]
20	500			20.000 [508]	0.250 [6.35]	52.78 [78.55]	…	10	450 [3100]	520 [3600]
					0.281 [7.14]	59.23 [88.19]	…	…	510 [3500]	590 [4100]
					0.312 [7.92]	65.66 [97.67]	…	…	560 [3900]	660 [4500]
					0.344 [8.74]	72.28 [107.60]	…	…	620 [4300]	720 [5000]
					0.375 [9.52]	78.67 [117.02]	STD	20	680 [4700]	790 [5400]
					0.406 [10.31]	84.04 [126.53]	…	…	730 [5000]	850 [5900]
					0.438 [11.13]	91.59 [136.37]	…	…	790 [5400]	920 [6300]

			0.469 [11.91]	97.92 [145.70]	…	…	850 [5900]	950 [6500]
			0.500 [12.70]	104.23 [155.12]	XS	30	900 [6200]	1050 [7200]
			0.594 [15.09]	123.23 [183.42]	…	40	1170 [8100]	1250 [8600]
			0.812 [20.62]	166.56 [247.83]	…	60	1460 [10 100]	1710 [11 800]
			1.031 [26.19]	209.06 [311.17]	…	80	1860 [12 800]	2170 [15 000]
			1.281 [32.54]	256.34 [381.53]	…	100	2310 [15 900]	2690 [18 500]
			1.500 [38.10]	296.65 [441.49]	…	120	2700 [18 600]	2800 [19 300]
			1.750 [44.45]	341.41 [508.11]	…	140	2800 [19 300]	2800 [19 300]
			1.969 [50.01]	379.53 [564.81]	…	160	2800 [19 300]	2800 [19 300]
24	600	24.000 [610]	0.250 [6.35]	63.47 [94.46]	…	10	380 [2600]	440 [3000]
			0.281 [7.14]	71.25 [106.08]	…	…	420 [2900]	490 [3400]
			0.312 [7.92]	79.01 [117.51]	…	…	470 [3200]	550 [3800]
			0.344 [8.74]	86.99 [129.50]	…	…	520 [3600]	600 [4100]
			0.375 [9.52]	94.71 [140.88]	STD	20	560 [3900]	660 [4500]
			0.406 [10.31]	102.40 [152.37]	…	…	610 [4200]	710 [4900]
			0.438 [11.13]	110.32 [164.26]	…	…	660 [4500]	770 [5300]
			0.469 [11.91]	117.98 [175.54]	…	…	700 [4800]	820 [5700]
			0.500 [12.70]	125.61 [186.94]	XS	…	750 [5200]	880 [6100]
			0.562 [14.27]	140.81 [209.50]	…	30	840 [5800]	980 [6800]
			0.688 [17.48]	171.45 [255.24]	…	40	1030 [7100]	1200 [8300]
			0.938 [23.83]	231.25 [344.23]	…	…	1410 [9700]	1640 [11 300]
			0.969 [24.61]	238.57 [355.02]	…	60	1450 [10 000]	1700 [11 700]
			1.219 [30.96]	296.86 [441.78]	…	80	1830 [12 600]	2130 [14 700]
			1.531 [38.89]	367.74 [547.33]	…	100	2300 [15 900]	2680 [18 500]
			1.812 [46.02]	429.79 [639.58]	…	120	2720 [18 800]	2800 [19 300]
			2.062 [52.37]	483.57 [719.63]	…	140	2800 [19 300]	2800 [19 300]
			2.344 [59.54]	542.64 [807.63]	…	160	2800 [19 300]	2800 [19 300]
26	650	26.000 [660]	0.250 [6.35]	68.82 [102.42]	…	…	350 [2400]	400 [2800]
			0.281 [7.14]	77.26 [115.02]	…	…	390 [2700]	450 [3100]
			0.312 [7.92]	85.68 [127.43]	…	10	430 [3000]	500 [3400]
			0.344 [8.74]	94.35 [140.45]	…	…	480 [3300]	560 [3900]
			0.375 [9.52]	102.72 [152.80]	STD	…	520 [3600]	610 [4200]
			0.406 [10.31]	111.08 [165.28]	…	…	560 [3900]	660 [4500]
			0.438 [11.13]	119.69 [178.20]	…	…	610 [4200]	710 [4900]
			0.469 [11.91]	128.00 [190.46]	…	…	650 [4500]	760 [5200]
			0.500 [12.70]	136.30 [202.85]	XS	20	690 [4800]	810 [5600]
			0.562 [14.27]	152.83 [227.37]	…	…	780 [5400]	910 [6300]

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