Ống thép Seah ASTM A53

Contents

1 Kích thước ống thép Seah ASTM A53
2 Ứng dụng ống thép Seah ASTM A53
3 Hóa chất và vật lý yêu cầu của ống thép Seah
- 3.1 Yêu cầu hóa chất (%)
- 3.2 Yêu cầu thể chất
4 Kiểm tra theo yêu cầu
5 Thay đổi kích thước

Kích thước ống thép Seah ASTM A53

Kích Thước Danh Nghĩa	Đường kính ngoài		Độ dày		Trọng lượng danh nghĩa						Phân loại theo trọng lượng	Tiêu chuẩn SCH	Áp lực thử (psi)
Kích Thước Danh Nghĩa	Đường kính ngoài		Độ dày		Vát phẳng			Ren răng có đầu nối					Vát phẳng		Ren răng có đầy nối
in.	in.	mm	in.	mm	lb/ft	kg/ft	kg/m	lb/ft	kg/ft	kg/m			Grade A	Grade B	Grade A	Grade B
1/2″	0.840	21.3	0.109	2.77	0.86	0.39	1.27	0.86	0.39	1.27	STD	40	700	700	700	700
			0.147	3.73	1.08	0.49	1.62	1.09	0.49	1.62	XS	80	850	850	850	850
3/4″	1.050	26.7	0.113	2.87	1.14	0.52	1.69	1.14	0.52	1.69	STD	40	700	700	700	700
			0.154	3.91	1.47	0.67	2.20	1.48	0.67	2.21	XS	80	850	850	850	850
1″	1.315	33.4	0.133	3.38	1.67	0.76	2.50	1.69	0.77	2.50	STD	40	700	700	700	700
1″	1.315	33.4	0.179	4.55	2.18	0.99	3.24	2.19	0.99	3.25	XS	80	850	850	850	850
1 ¼”	1.660	42.2	0.140	3.56	2.27	1.03	3.39	2.28	1.03	3.40	STD	40	1,200	1,300	1,000	1,100
1 ¼”	1.660	42.2	0.191	4.85	2.99	1.36	4.47	3.02	1.37	4.49	XS	80	1,800	1,900	1,500	1,600
1 ½”	1.900	48.3	0.145	3.68	2.71	1.23	4.05	2.74	1.24	4.04	STD	40	1,200	1,300	1,000	1,100
1 ½”	1.900	48.3	0.200	5.08	3.63	1.65	5.41	3.65	1.66	5.39	XS	80	1,800	1,900	1,500	1,600
2″	2.375	60.3	0.154	3.91	3.65	1.66	5.44	3.68	1.67	5.46	STD	40	2,300	2,500	2,300	2,500
2″	2.375	60.3	0.218	5.54	5.02	2.28	7.48	5.08	2.30	7.55	XS	80	2,500	2,500	2,500	2,500
2 ½”	2.875	73.0	0.203	5.16	5.79	2.63	8.63	5.85	2.65	8.67	STD	40	2,500	2,500	2,500	2,500
2 ½”	2.875	73.0	0.276	7.01	7.66	3.48	11.41	7.75	3.52	11.52	XS	80	2,500	2,500	2,500	2,500
3″	3.500	88.9	0.125	3.18	4.51	2.05	6.72	–	–	–	–	–	1,290	1,500	–	–
			0.156	3.96	5.57	2.53	8.29	–	–	–	–	–	1,600	1,870	–	–
			0.188	4.78	6.64	3.02	9.92	–	–	–	–	–	1,930	2,260	–	–
			0.216	5.49	7.57	3.44	11.29	7.68	3.48	11.35	STD	40	2,220	2,500	2,200	2,500
			0.250	6.35	8.67	3.94	12.93	–	–	–	–	–	2,500	2,500	–	–
			0.281	7.14	9.66	4.39	14.40	–	–	–	–	–	2,500	2,500	–	–
			0.300	7.62	10.26	4.65	15.27	10.35	4.69	15.39	XS	80	2,500	2,500	2,200	2,500
4″	4.500	114.3	0.125	3.18	5.81	2.65	8.71	–	–	–	–	–	1,000	1,170	–	–
			0.156	3.96	7.17	3.29	10.78	–	–	–	–	–	1,250	1,460	–	–
			0.188	4.78	8.65	3.93	12.91	–	–	–	–	–	1,500	1,750	–	–
			0.219	5.56	9.99	4.54	14.91	–	–	–	–	–	1,750	2,040	–	–
			0.237	6.02	10.78	4.90	16.07	–	–	–	–	40	1,900	2,210	–	–
			0.337	8.56	15.00	6.80	22.32	15.20	6.89	22.60	XS	80	2,700	2,800	2,700	2,800
5″	5.563	141.3	0.156	3.96	9.00	4.09	13.41	–	–	–	–	–	1,010	1,180	–	–
			0.188	4.78	10.78	4.90	16.09	–	–	–	–	–	1,220	1,420	–	–
			0.203	5.16	11.62	5.28	17.32	–	–	–	–	–	1,220	1,420	–	–
			0.258	6.55	14.61	6.64	21.77	14.90	6.76	22.07	STD	40	1,670	1,950	1,700	1,900
			0.281	7.14	15.84	7.20	23.62	–	–	–	–	–	1,820	2,120	–	–
			0.312	7.92	17.47	7.94	26.05	–	–	–	–	–	2,020	2,360	–	–
			0.344	8.74	19.16	8.71	28.57	–	–	–	–	–	2,230	2,600	–	–
			0.375	9.52	20.75	9.43	30.94	21.04	9.54	31.42	XS	80	2,430	2,800	2,400	2,800
6″	6.625	168.3	0.156	3.96	10.76	4.89	16.05	–	–	–	–	–	1,020	1,190	–	–
			0.188	4.78	12.94	5.87	19.27	–	–	–	–	–	1,020	1,190	–	–
			0.203	5.16	13.93	6.33	20.76	–	–	–	–	–	1,020	1,190	–	–
			0.219	5.56	14.96	6.80	22.31	–	–	–	–	–	1,190	1,390	–	–
			0.250	6.35	17.01	7.73	25.36	–	–	–	–	–	1,360	1,580	–	–
			0.280	7.11	18.94	8.61	28.26	19.34	8.77	28.58	STD	40	1,520	1,780	1,500	1,800
			0.312	7.92	21.01	9.55	31.32	–	–	–	–	–	1,700	1,980	–	–
			0.344	8.74	23.06	10.48	34.39	–	–	–	–	–	1,870	2,180	–	–
			0.375	9.52	24.99	11.36	37.28	–	–	–	–	–	2,040	2,380	–	–
			0.432	10.97	28.53	12.97	42.56	–	–	–	–	–	2,350	2,740	2,300	2,700
8″	8.625	219.1	0.156	3.96	14.08	6.40	21.01	–	–	–	–	–	780	920	–	–
			0.188	4.78	16.94	7.70	25.26	–	–	–	–	–	780	920	–	–
			0.203	5.16	18.26	8.30	27.22	–	–	–	–	–	850	1,000	–	–
			0.219	5.56	19.62	8.92	29.28	–	–	–	–	–	910	1,070	–	–
			0.250	6.35	22.33	10.15	33.31	–	–	–	–	20	1,040	1,220	–	–
			0.277	7.04	24.68	36.81	36.31	25.53	11.58	38.07	–	30	1,160	1,350	1,200	1,300
			0.312	7.92	27.65	12.57	41.24	–	–	–	–	–	1,300	1,520	–	–
			0.322	8.18	28.53	12.97	42.55	29.35	13.31	43.73	STD	40	1,340	1,570	1,300	1,600
			0.344	8.74	30.40	13.82	45.34	–	–	–	–	–	1,440	1,680	–	–
			0.375	9.52	33.00	15.00	49.20	–	–	–	–	–	1,570	1,830	–	–
			0.406	10.31	35.60	16.18	53.08	–	–	–	–	60	1,700	2,000	–	–
Dung dai độ dày : + không qui định, – 12,5%																Dung sai đường kính : ĐK đến 11/2″ ± 1/64″; ĐK từ 2″ trở lên ± 1%

Ứng dụng ống thép Seah ASTM A53

Đối với nước thành phố & công nghiệp, nước tưới & nông nghiệp, cung cấp dầu và khí đốt, vòi phun nước, vòi chữa cháy, đường ống tàu thủy, v.v.

Hóa chất và vật lý yêu cầu của ống thép Seah

Yêu cầu hóa chất (%)

	C	Mn	P	S	others
A	0.25	0.95	0.05	0..45	*8
B	0.3	1.2	0.05	0.045	*8

Yêu cầu thể chất

	Tensible strength Psi(MPa)	Yield strength Psi(MPa)	Elongation (Min %)	Gauge Length(in)
A	Min. 48,000 (33.8kg/mm2)	Min. 30,000 (21.1kg/mm2)	e = 625,000x	2
B	Min. 60,000 (42.2kg/mm2)	Min. 35,000 (24.6kg/mm2)	e = 625,000x	2

Kiểm tra theo yêu cầu

Flattening Test

Bend Test

Hydrostatic Test

H = Distance between Exterior sufaces

Anglex Inner radius

P = Test Pressure (psi)

D = Outside Diameter

S = allowable fiber Stress ( psi)

ASTM A53

Apply for standard weight and extra strong pipe of NB > in.

Apply for NB ≤2in 900 x 6D

Specified respectively in size and grade.

Ductility of the weld H=

When ordered for close coliling

Note : The Maximum pressure

2/3D

1800 x 4D

NB ≤ 3 in. p = 2,500 psi

Ductility away frome the weld H=

NB > 3 in. p = 2,800 psi

1/3D

The test shall be made alternately with the weld at 0 deg. and at 90 deg.

Thay đổi kích thước

Outside Diameter

Wall Thickness

Length

Height of inside Flash

ASTM A53

NB ≤ 1

+ Not specified

–

in. ±

-12.5%

in.

NB ≥ 2 in.

1 %