Petroleum Oil Carbon Casing Steel Tubing
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Qingdao Hengjia Steel Pipe Co., Ltd. is a branch of Heng Steel Group .
 Heng Steel Group Established in 2005, is a large steel enterprise in the North of China . Hengjia have a modern factory covering an area of 400,000 square meters, with over 800 employees and a fixed asset of 180 million USD, annual output capacity is up to 800,000 Tons. We can quickly fulfill all of our domestic and international customers' orders, try our best to meet customers' requirements.
About the Petroleum Cracking Steel Pipe,we can produce with  Black Painting/Oiled or as your requirement.
In order to provide One-Stop service for customers with superior products from qualified supplier.
Detailed Description:
Outer diameter
Theoretical weight
Thickness
Inside diameter
Through diameter
Coupling outer diameter
Thread type
Grade
Length
139.7
(5-1/2)20.85(0.244)
23.09(15.50)
25.32(17.00)
29.79(20.00)
34.26(23.00)
 6.20(0.244)
6.98(0.275)
7.72(0.304)
9.17(0.361)
10.54(0.415)127.3(5.012)
125.7(4.950)
124.3(4.892)
121.4(4.778)
118.6(4.670)124.1(4.887)
122.6(4.825)
121.1(4.767)
118.2(4.653)
115.4(4.545)153.7
(6.050)Knuckle Thread/
BTCJ55
N80
P1108m-12m
(2602-39.4)
177.8
(7)25.52917.00)
29.79(20.00)
34.26(23.00)
38.73(26.00)
43.20(29.00)
47.66(32.00)
52.13(35.00)
56.60(38.00)5.87(0.231)
6.91(0.272)
8.05(0.317)
9.19(0.362)
10.36(0.408)
11.51(0.453)
12.65(0.498)
13.72(0.540)166.1(6.538)
164.2(6.456)
161.7(6.366)
159.4(6.276)
157.1(6.180)
154.8(6.090)
152.5(6.004)
150.4(5.430)162.9(6.413)
160.8(6.331)
158.5(6.204)
156.2(6.151)
153.9(6.059)
151.6(5.969)
149.3(5.879)
147.2(5.795)
 194.5
(7.656)Knuckle Thread/
BTCJ55
N80
P110
 8m-12m
(2602-39.4)
219.1
(8-5/8)35.75(24.00)
41.71(28.00)
47.66(32.00)
53.62(36.00)
59.58(40.00)6.71(0.264)
7.72(0.304)
8.94(0.352)
10.16(0.400)
11.43(0.450)205.7(8.093)
203.7(8.020)
201.2(7.927)
198.8(7.827)
196.2(7.724)202.5(7.972)
200.5(7.894)
198.0(7.795)
195.6(7.701)
193.0(7.598)
 244.5
(9.625)Knuckle Thread/
BTCJ55
N80
P1108m-12m
(2602-39.4)
244.5
(9-5/8)48.11(32.30)
53.62(36.00)
59.58(40.00)
64.79(43.50)
70.01(47.00)
71.69(53.50)7.92(0.312)
8.94(0.352)
10.03(0.395)
11.05(0.435)
11.99(0.472)
13.84(0.545)328.7(9.001)
236.6(8.921)
224.4(8.835)
232.4(8.755)
320.5(8.681)
216.8(8.535)244.7(8.845)
222.6(8.765)
220.4(8.679)
218.4(8.599)
216.5(8.525)
212.8(8.379)
 269.6
(10.6250Knuckle Thread/
BTCJ55
N80
P1108m-12m
(2602-39.4)
273.0
(10-3/4)48.78(32.75)
60.32(40.50)
67.77(45.50)
75.96(51.00)
82.67(55.50)
 7.09(0.279)
8.89(0.350)
10.26(0.400)
11.43(0.450)
12.57(0.495)258.9(10.192)
255.3(10.050)
252.7(9.950)
250.2(9.850)
247.9(9.760)254.9(10.035)
251.3(9.894)
248.8(9.794)
246.2(9.694)
243.9(9.604)298.5
(11.752)Knuckle Thread/
BTCJ55
N80
P1108m-12m
(2602-39.4)
339.7
(13-3/8)71.50(48.00)
81.18(54.50)
90.86(61.00)
101.69(68.00)8.38(0.330)
9.65(0.380)
10.92(0.430)
12.19(0.480)322.9(12.715)
320.4(12.615)
317.9(12.515)
315.3(12.415)
 319.0(12.559)
316.5(12.459)
313.9(12.359)
311.4(12.259)365.1
(14.374)Knuckle Thread/
BTCJ55
N80
P1108m-12m
(2602-39.4)
73.0
(2-7/8)9.53(6.40)
11.62(7.90)
12.81(8.60)5.51(0217)
7.01(0.276)
7.82(0.308)62.00(2.441)
59.00(2.323)
57.40(2.259)59.61(2.347)
56.62(2.229)
54.99(2.165)88.9
(3.500)Knuckle Thread
 J55
N80
P1108.5m-9.5m
(27.9-31.2)
88.9
(3-1/2)11.47(7.70)
15.19(10.20)5.49(0.216)
7.34(0.289)77.9(3.067)
76.0(2.992)24.25(2.943)
21.04(2.797)107.95
(4.250)
Knuckle Thread
 J55
N80
P1108.5m-9.5m
(27.9-31.2)
114.3
(4-1/2)18.77(12.60)
6.88(0.271)
100.5(3.957)
97.37(3.833)
132.08
(5.200)
Knuckle Thread
 J55
N80
P110
 8.5m-9.5m
(27.9-31
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Qingdao Hengjia Steel Pipe Co., Ltd
Qingdao Hengjia Steel Pipe Co., Ltd. is a branch of Heng Steel Group .
 Heng Steel Group Established in 2005, is a large steel enterprise in the North of China . Hengjia have a modern factory covering an area of 400,000 square meters, with over 800 employees and a fixed asset of 180 million USD, annual output capacity is up to 800,000 Tons. We can quickly fulfill all of our domestic and international customers' orders, try our best to meet customers' requirements.
About the Petroleum Cracking Steel Pipe,we can produce with  Black Painting/Oiled or as your requirement.
In order to provide One-Stop service for customers with superior products from qualified supplier.
Detailed Description:
Outer diameter
Theoretical weight
Thickness
Inside diameter
Through diameter
Coupling outer diameter
Thread type
Grade
Length
139.7
(5-1/2)20.85(0.244)
23.09(15.50)
25.32(17.00)
29.79(20.00)
34.26(23.00)
 6.20(0.244)
6.98(0.275)
7.72(0.304)
9.17(0.361)
10.54(0.415)127.3(5.012)
125.7(4.950)
124.3(4.892)
121.4(4.778)
118.6(4.670)124.1(4.887)
122.6(4.825)
121.1(4.767)
118.2(4.653)
115.4(4.545)153.7
(6.050)Knuckle Thread/
BTCJ55
N80
P1108m-12m
(2602-39.4)
177.8
(7)25.52917.00)
29.79(20.00)
34.26(23.00)
38.73(26.00)
43.20(29.00)
47.66(32.00)
52.13(35.00)
56.60(38.00)5.87(0.231)
6.91(0.272)
8.05(0.317)
9.19(0.362)
10.36(0.408)
11.51(0.453)
12.65(0.498)
13.72(0.540)166.1(6.538)
164.2(6.456)
161.7(6.366)
159.4(6.276)
157.1(6.180)
154.8(6.090)
152.5(6.004)
150.4(5.430)162.9(6.413)
160.8(6.331)
158.5(6.204)
156.2(6.151)
153.9(6.059)
151.6(5.969)
149.3(5.879)
147.2(5.795)
 194.5
(7.656)Knuckle Thread/
BTCJ55
N80
P110
 8m-12m
(2602-39.4)
219.1
(8-5/8)35.75(24.00)
41.71(28.00)
47.66(32.00)
53.62(36.00)
59.58(40.00)6.71(0.264)
7.72(0.304)
8.94(0.352)
10.16(0.400)
11.43(0.450)205.7(8.093)
203.7(8.020)
201.2(7.927)
198.8(7.827)
196.2(7.724)202.5(7.972)
200.5(7.894)
198.0(7.795)
195.6(7.701)
193.0(7.598)
 244.5
(9.625)Knuckle Thread/
BTCJ55
N80
P1108m-12m
(2602-39.4)
244.5
(9-5/8)48.11(32.30)
53.62(36.00)
59.58(40.00)
64.79(43.50)
70.01(47.00)
71.69(53.50)7.92(0.312)
8.94(0.352)
10.03(0.395)
11.05(0.435)
11.99(0.472)
13.84(0.545)328.7(9.001)
236.6(8.921)
224.4(8.835)
232.4(8.755)
320.5(8.681)
216.8(8.535)244.7(8.845)
222.6(8.765)
220.4(8.679)
218.4(8.599)
216.5(8.525)
212.8(8.379)
 269.6
(10.6250Knuckle Thread/
BTCJ55
N80
P1108m-12m
(2602-39.4)
273.0
(10-3/4)48.78(32.75)
60.32(40.50)
67.77(45.50)
75.96(51.00)
82.67(55.50)
 7.09(0.279)
8.89(0.350)
10.26(0.400)
11.43(0.450)
12.57(0.495)258.9(10.192)
255.3(10.050)
252.7(9.950)
250.2(9.850)
247.9(9.760)254.9(10.035)
251.3(9.894)
248.8(9.794)
246.2(9.694)
243.9(9.604)298.5
(11.752)Knuckle Thread/
BTCJ55
N80
P1108m-12m
(2602-39.4)
339.7
(13-3/8)71.50(48.00)
81.18(54.50)
90.86(61.00)
101.69(68.00)8.38(0.330)
9.65(0.380)
10.92(0.430)
12.19(0.480)322.9(12.715)
320.4(12.615)
317.9(12.515)
315.3(12.415)
 319.0(12.559)
316.5(12.459)
313.9(12.359)
311.4(12.259)365.1
(14.374)Knuckle Thread/
BTCJ55
N80
P1108m-12m
(2602-39.4)
73.0
(2-7/8)9.53(6.40)
11.62(7.90)
12.81(8.60)5.51(0217)
7.01(0.276)
7.82(0.308)62.00(2.441)
59.00(2.323)
57.40(2.259)59.61(2.347)
56.62(2.229)
54.99(2.165)88.9
(3.500)Knuckle Thread
 J55
N80
P1108.5m-9.5m
(27.9-31.2)
88.9
(3-1/2)11.47(7.70)
15.19(10.20)5.49(0.216)
7.34(0.289)77.9(3.067)
76.0(2.992)24.25(2.943)
21.04(2.797)107.95
(4.250)
Knuckle Thread
 J55
N80
P1108.5m-9.5m
(27.9-31.2)
114.3
(4-1/2)18.77(12.60)
6.88(0.271)
100.5(3.957)
97.37(3.833)
132.08
(5.200)
Knuckle Thread
 J55
N80
P110
 8.5m-9.5m
(27.9-31
Â