| Standard | API SPEC 5CT |
| Material | J55,K55,N80,L80,C90,C95,P110, Super 13Cr, etc |
| OD | 1/8"-48",10mm-1219mm |
| WT | SCH5,SCH10,SCH20,SCH40,SCH60,SCH80,SCH100,SCH120,SCH160,XXS,0.8-19mm |
| Usage | carbon steel pipe applies to boiler,Structure Use, water transport, Building, Machinery, Traffic,Oil development and so on |
| Other test | HY,ET or according to request |
| Length | 2-12m Random,5.8M FIXED,6M FIXED,9M FIXED,11.8M |
| Surface | Black paint ,Galvanized as rusty protect, capped ends |
| Ends | 2"below plain ends,2" above beveled ends, threaded ends available |
| Method | 140mm below cold drawn,140mm above hot rolled,273mm above hot expand |
Mechanical properties：
| Standard | Brand | Tensile strength (MPa) | Yield strength link (MPa) | Hardness |
| API SPEC 5CT | J55 | ≥517 | 379-552 |
|
| K55 | ≥517 | ≥655 |
|
| N80 | ≥689 | 552-785 |
|
| L80(13Cr） | ≥655 | 552-655 | ≤241HB |
| p110 | ≥862 | 758-965 |
|
Chemical composition:
| Standard | Brand | C | Si | Mn | P | S | Cr | Ni | Cu | Mo | V | Als |
| APlSPC5CT | J55K55(37Mn5) | 0.34~0.39 | 0.20~0.35 | 1.25～1.50 | ≤0.02 | ≤0.015 | ≤0.15 | ≤0.20 | ≤0.20 | / | / | ≤0.020 |
| N80 (36Mn2V) | 0.34~0.38 | 0.20～0.35 | 1.45~～1.70 | ≤0.02 | ≤0.015 | ≤0.15 | / | / | / | 0.11~0.16 | ≤0.020 |
| L8O(13Cr) | 0.15~0.22 | ≤0.1 | 0.25~1.00 | ≤0.020 | ≤0.010 | 12.0~14.0 | ≤0.20 | ≤0.20 | / | / | ≤0.020 |
| P110(3OCrMo) | 0.26~0.35 | 0.17~0.37 | 0.40~～0.70 | ≤0.02o | ≤0.010 | 0.80~1.10 | ≤0.20 | ≤0.20 | 0.15~0.25 | 0.08 | ≤0.020 |
Theoretical weight scale：
| Outer diameter | Theoretical weight | Wall thickness | inner diameter | size | Collar diameter | Screw type | Grade | length |
| 139.7 | 20.85（0.244） | 6.20(0.244) | 127.3(5.012) | 124.1(4.887) | 153.7 | Round thread | j55 | 8m-12m |
| （5-1/2） | 23.09（15.50） | 6.98(0.275) | 125.7(4.950) | 122.6(4.825) | -6.05 | Partial ladder thread | n80 | (2602-39.4) |
| 25.32（17.00） | 7.72(0.304) | 124.3(4.892) | 121.1(4.767) |
|
| p110 |
|
| 29.79（20.00） | 9.17(0.361) | 121.4(4.778) | 118.2(4.653) |
|
|
|
|
| 34.26（23.00） | 10.54(0.415) | 118.6(4.670) | 115.4(4.545) |
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|
|
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| 177.8 | 25.52917.00 | 5.87(0.231) | 166.1(6.538) | 162.9(6.413) | 194.5 | Round thread | j55 | 8m-12m |
| -7 | 29.79（20.00） | 6.91(0.272) | 164.2(6.456) | 160.8(6.331) | -7.656 | Partial ladder thread | n80 | (2602-39.4) |
| 34.26（23.00） | 8.05(0.317) | 161.7(6.366) | 158.5(6.204) |
|
| p110 |
|
| 38.73（26.00） | 9.19(0.362) | 159.4(6.276) | 156.2(6.151) |
|
|
|
|
| 43.20（29.00） | 10.36(0.408) | 157.1(6.180) | 153.9(6.059) |
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|
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| 47.66（32.00） | 11.51(0.453) | 154.8(6.090) | 151.6(5.969) |
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|
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| 52.13（35.00） | 12.65(0.498) | 152.5(6.004) | 149.3(5.879) |
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| 56.60（38.00） | 13.72(0.540) | 150.4(5.430) | 147.2(5.795) |
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| 219.1 | 35.75（24.00） | 6.71(0.264) | 205.7(8.093) | 202.5(7.972) | 244.5 | Round thread | j55 | 8m-12m |
| （8-5/8） | 41.71（28.00） | 7.72(0.304) | 203.7(8.020) | 200.5(7.894) | -9.625 | Partial ladder thread | n80 | (2602-39.4) |
| 47.66（32.00） | 8.94(0.352) | 201.2(7.927) | 198.0(7.795) |
|
| p110 |
|
| 53.62（36.00） | 10.16(0.400) | 198.8(7.827) | 195.6(7.701) |
|
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|
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| 59.58（40.00） | 11.43(0.450) | 196.2(7.724) | 193.0(7.598) |
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| 244.5 | 48.11(32.30) | 7.92(0.312) | 228.7(9.001) | 244.7(8.845) | 269.6 | Round thread | j55 | 8m-12m |
| （9-5/8） | 53.62（36.00） | 8.94(0.352) | 226.6(8.921) | 222.6(8.765) | (10.6250 | Partial ladder thread | n80 | (2602-39.4) |
| 59.58（40.00） | 10.03(0.395) | 224.4(8.835) | 220.4(8.679) |
|
| p110 |
|
| 64.79（43.50） | 11.05(0.435) | 222.4(8.755) | 218.4(8.599) |
|
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|
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| 70.01（47.00） | 11.99(0.472) | 220.5(8.681) | 216.5(8.525) |
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| 71.69（53.50） | 13.84(0.545) | 216.8(8.535) | 212.8(8.379) |
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| 273 | 48.78（32.75） | 7.09(0.279) | 258.9(10.192) | 254.9(10.035) | 298.5 | Round thread | j55 | 8m-12m |
| （10-3/4） | 60.32（40.50） | 8.89(0.350) | 255.3(10.050) | 251.3(9.894) | -11.752 | Partial ladder thread | n80 | (2602-39.4) |
| 67.77（45.50） | 10.26(0.400) | 252.7(9.950) | 248.8(9.794) |
|
| p110 |
|
| 75.96（51.00） | 11.43(0.450) | 250.2(9.850) | 246.2(9.694) |
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|
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| 82.67（55.50） | 12.57(0.495) | 247.9(9.760) | 243.9(9.604) |
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| 339.7 | 71.50（48.00） | 8.38(0.330) | 322.9(12.715) | 319.0(12.559) | 365.1 | Round thread | j55 | 8m-12m |
| （13-3/8） | 81.18（54.50） | 9.65(0.380) | 320.4(12.615) | 316.5(12.459) | -14.374 | Partial ladder thread | n80 | (2602-39.4) |
| 90.86（61.00） | 10.92(0.430) | 317.9(12.515) | 313.9(12.359) |
|
| p110 |
|
| 101.69（68.00） | 12.19(0.480) | 315.3(12.415) | 311.4(12.259) |
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| 73 | 9.53（6.40） | 5.51(0217) | 62.00(2.441) | 59.61(2.347) | 88.9 | Round thread | j55 | 8.5m-9.5m |
| （2-7/8） | 11.62（7.90） | 7.01(0.276) | 59.00(2.323) | 56.62(2.229) | -3.5 | n80 | (27.9-31.2) |
| 12.81（8.60） | 7.82(0.308) | 57.40(2.259) | 54.99(2.165) |
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|
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| 88.9 | 11.47（7.70） | 5.49(0.216) | 77.9(3.067) | 24.25(2.943) | 107.95 | Round thread | j55 | 8.5m-9.5m |
| （3-1/2） | 15.19（10.20） | 7.34(0.289) | 76.0(2.992) | 21.04(2.797) | -4.25 | n80 | (27.9-31.2) |
| 114.3 | 18.77（12.60） | 6.88(0.271) | 100.5(3.957) | 97.37(3.833) | 132.08 | Round thread | j55 | 8.5m-9.5m |
| （4-1/2） | -5.2 | n80 | (27.9-31) |
