Kích thước Thép ống đen, đúc, hàn danh định (Nominal Pipe Size - NPS)

NPS(Inches)	DN (mm)	Outside Diameter OD (millimeters)	Wall Thickness (millimeters)
			Wall Thickness (millimeters)
			SCH 5	SCH 10	SCH 30	SCH 40	SCH 80	SCH 120	XXS
⅛	6	10,3	0,889	1,245	1,448	1,727	2,413	---	---
¼	8	13,7	1,245	1,651	1,854	2,235	3,023	---	---
⅜	10	17,2	1,245	1,651	1,854	2,311	3,200	---	---
½	15	21,3	1,651	2,108	---	2,769	3,734	---	7,468
¾	20	26,7	1,651	2,108	---	2,870	3,912	---	7,823
1	25	33,4	1,651	2,769	---	3,378	4,547	---	9,093
1¼	32	42,2	1,651	2,769	2,972	3,556	4,851	---	9,703
1½	40	48,3	1,651	2,769	3,175	3,683	5,080	---	10,160
2	50	60,3	1,651	2,769	3,175	3,912	5,537	6,350	11,074
2½	65	73,0	2,108	3,048	4,775	5,156	7,010	7,620	14,021
3	80	88,9	2,108	3,048	4,775	5,486	7,620	8,890	15,240
3½	90	101,6	2,108	3,048	4,775	5,740	8,077	---	16,154

NPS(Inches)	DN (mm)	Outside Diameter OD (millimeters)	Wall Thickness (millimeters)
			Wall Thickness (millimeters)
			SCH 5	SCH 10	SCH 20	SCH 30	SCH 40/STD	SCH 60	SCH 80	SCH 100	SCH 120	SCH 140	SCH 160
4	100	114,3	2,108	3,048	---	4,775	6,020	7,137	8,56	---	11,100	---	13,487
4½	115	127,0	---	---	---	---	6,274	---	9,017	---	---	---	---
5	125	141,3	2,769	3,404	---	---	6,553	---	9,525	---	12,700	---	15,875
6	150	168,3	2,769	3,404	---	---	7,112	---	10,973	---	14,275	---	18,263
8	200	219,1	2,769	3,759	6,350	7,036	8,179	10,312	12,700	15,062	18,237	20,625	23,012

NPS(Inches)	DN (mm)	Outside Diameter OD (millimeters)	Wall Thickness (millimeters)
			Wall Thickness (millimeters)
			SCH 5s	SCH 5	SCH 10s	SCH 10	SCH 20	SCH 30
10	250	273,1	3,404	3,404	4,191	4,191	6,350	7,798
12	300	323,9	3,962	4,191	4,572	4,572	6,350	8,382
14	350	355,6	3,962	3,962	4,775	6,350	7,925	9,525
16	400	406,4	4,191	4,191	4,775	6,350	7,925	9,525
18	450	457,2	4,191	4,191	4,775	6,350	7,925	11,100
20	500	508,0	4,775	4,775	5,537	6,350	9,525	12,700
24	600	609,6	5,537	5,537	6,350	6,350	9,525	14,275

NPS(Inches)	Wall Thickness
	(millimeters)
	SCH 40s	SCH 40	SCH 60	SCH 80s	SCH 80	SCH 100	SCH 120	SCH 140	SCH 160
10	9,271	9,271	12,700	12,700	15,062	18,237	21,412	25,400	28,575
12	9,525	10,312	12,700	12,700	17,450	21,412	25,400	28,575	33,325
14	9,525	11,100	15,062	12,700	19,050	23,800	27,762	31,750	35,712
16	9,525	12,700	16,662	12,700	21,412	26,187	30,937	36,500	40,462
18	9,525	14,275	19,050	12,700	23,800	29,362	34,925	39,675	45,237
20	9,525	15,062	20,625	12,700	26,187	32,512	38,100	44,450	49,987
24	9,525	17,450	24,587	12,700	30,937	38,887	46,025	52,375	59,512

Kích thước Thép ống đen, đúc, hàn danh định (Nominal Pipe Size - NPS)

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