API 5CT CS OIL CASING SMLS STEEL PIPE
WE ARE ZEWO STEEL PIPE MANUFACTURING CO., LTD.HEBEI,CHINA. WE MAINLY PRODUCE SMLS ,GL,WELD,OIL CASING STEEL PIPE AND PIPE FITTING:EBLOW,FLANGE,TRANSITION PIPE AND SO ON.WE LOOK FORWARD TO YOUR INQUIRY.
Size Tolerance
| OD Tolerance | WT Tolerance | length | Rang 1 | Rang 2 | Rang 3 | ||
| D<114.3 | D>=114.3 | Tubing | 6.10~7.32M | 8.53~9.57M | |||
| ±0.79 | -0.5%,+1% | +/-12.50% | Casing | 4.88~7.62M | 7.62~10.36M | 10.36~14.63M | |
Chemical Composition (%)
| Grade | C | Si | Mn | P | S | Cr | Ni | Cu | Mo | V | Als |
| J55,K55 | 0.34~0.39 | 0.20~0.35 | 1.25~1.5 | ≤0.02 | ≤0.015 | ≤0.15 | ≤0.20 | ≤0.20 | ≤0.020 | ||
| N80 | 0.34~0.38 | 0.20~0.35 | 1.45~1.7 | ≤0.02 | ≤0.015 | ≤0.15 | 0.11~0.16 | ≤0.020 | |||
| L80 | 0.15~0.22 | ≤1.00 | 0.25~1.0 | ≤0.02 | ≤0.010 | 12.0~14.0 | ≤0.20 | ≤0.20 | ≤0.020 | ||
| P110 | 0.26~0.35 | 0.17~0.37 | 0.40~0.7 | ≤0.02 | ≤0.010 | 0.80~1.10 | ≤0.20 | ≤0.20 | 0.15~0.25 | ≤0.08 | ≤0.020 |
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